News: Mechanics and Maritime Scienceshttp://www.chalmers.se/sv/nyheterNews related to Chalmers University of TechnologyThu, 05 Apr 2018 10:57:39 +0200http://www.chalmers.se/sv/nyheterhttps://www.chalmers.se/en/departments/m2/news/Pages/Electric-cars-may-avoid-whiplash-injuries-.aspxhttps://www.chalmers.se/en/departments/m2/news/Pages/Electric-cars-may-avoid-whiplash-injuries-.aspxElectric cars may avoid whiplash injuries<p><b>​Every day between 30 and 300 people get whiplash injuries. A common cause is when the vehicle has been hit in the rear. Many of these accidents could be avoided by driving an electric car. How this could be done is shown in Adithya Arikere’s PhD thesis.</b></p><div><span style="background-color:initial">“In my project, we tried to find novel active safety applications for electrified drivetrains that cannot be achieved or at least performed as well with traditional internal combustion engines” says Adithya Arikere.</span><br /></div> <div><br /></div> <div>Electric drives have a lot of advantages over internal combustion engines. They have fast and reliable response, precise and accurate control, max torque from standstill and more. Some of these can be exploited to achieve novel or improved active safety functionality. </div> <div><br /></div> <div>&quot;A simple example is if you can detect that you are about to be hit from behind and you have the free space in front to accelerate and get out the way, you can do so with an electrified drivetrain&quot; says Adithya Arikere. </div> <div><br /></div> <div>This cannot be done reliably with an internal combustion engine since they have poor low-end torque, large response times and the transmission can be in the wrong gear. But with electric drives which deliver their peak torque at low speeds, have short response times and typically don’t need a transmission, this can be easily and reliably achieved. Adithya Arikere has investigated three scenarios in detail: the rear-end collision, obstacle avoidance with oncoming traffic and intersection accidents. </div> <div><br /></div> <div>&quot;We have found that in each case, the quick and reliable response of electric drives can be used to perform interventions that can avoid or mitigate accidents and yield a significant safety benefit&quot; says Adithya Arikere</div> <div><br /></div> <div>Since his project deals with finding novel active safety applications for electrified drivetrains he believes it can make electrified vehicles of the future safer and consequently, also make them more attractive to consumers since these safety functions cannot be achieved with traditional internal combustion engine based vehicles. This in turn could help drive electrified vehicle sales and therefore help mitigate climate change and local emissions.</div> <div><br /></div> <div>Adithya Arikere presents his PhD thesis<a href="https://research.chalmers.se/en/publication/501005"> Vehicle Dynamics Control for Active Safety Functions using Electrified Drivelines​</a> at April 10, 10 AM in KB lecture hall. </div> <div> </div> <div><br /></div> <div><br /></div> <div> </div> <div><br /></div> <div><br /></div> Wed, 04 Apr 2018 08:00:00 +0200https://www.chalmers.se/en/departments/m2/news/Pages/Professional-mariners-as-test-participants-wanted.aspxhttps://www.chalmers.se/en/departments/m2/news/Pages/Professional-mariners-as-test-participants-wanted.aspxProfessional mariners as test participants wanted<p><b>​​First time ever: STM tools and functions to be evaluated in the European Maritime Simulator Network (EMSN) in March 13-16 2018! Chalmers and SMA are looking for test participants.​​</b></p><p class="MsoNormal" style="text-align:justify"><span lang="EN-US">The Sea Traffic Management Validation Project has developed and created a network of interconnected simulator centers in several EU countries – the European Maritime Simulator Network (EMSN) consisting of both ship handling bridges and VTS/Shore Centers. This network enables testing of Sea Traffic Management in complex traffic situations, port approaches, confined waters as well as other functions, like Search and Rescue, as a safer alternative to live testing. Several new services such as improved ship to ship route exchange, Port Call synchronization, enhanced monitoring and navigational assistance, etc. have been or will be implemented in the simulation testbed and need to be validated and tested by professional mariners.</span></p> <h2><span lang="EN-US">Scenarios</span></h2> <p class="MsoNormal" style="text-align:justify"><span lang="EN-US">Up to 30 ships with manned bridges are expected to participate in scenarios in the southern Baltic and English Channel with a limited amount of target vessels reflecting normal conditions for the area in question. The bridge teams are to navigate their ships according a pre-planned route and schedule.</span></p> <h2><span lang="EN-US">Qualifications for test persons</span></h2> <p class="MsoNormal" style="text-align:justify"><span lang="EN-US">The simulator bridges are to be manned by two deck officers forming a navigator/co-navigator team. One of the officers is required to have experience in a senior position on board and preferably have a Master Mariner CoC. The other officer may be a junior officer with a 3<sup>rd</sup> Mate’s license or a senior student of the Master Mariner program. Language prerequisite is English as several nationalities are forming part of the EMSN.</span></p> <h2><span lang="EN-US">Register for the simulations in March here:</span></h2> <p class="chalmersElement-P"> <span style="font-size:11pt;line-height:115%;font-family:calibri, sans-serif"><a href="http://stmvalidation.eu/emsn-simulation-campaign/"><span lang="EN-US" style="font-size:14pt;line-height:115%">http://stmvalidation.eu/emsn-simulation-campaign/</span></a></span><br /></p> <p class="chalmersElement-P"><span lang="EN-US"></span></p> <div> </div>Fri, 23 Feb 2018 10:00:00 +0100https://www.chalmers.se/en/areas-of-advance/Transport/news/Pages/Self-driving-vehicles-for-a-safer-mining-industry-.aspxhttps://www.chalmers.se/en/areas-of-advance/Transport/news/Pages/Self-driving-vehicles-for-a-safer-mining-industry-.aspxSelf-driving vehicles for a safer mining industry<p><b>​Self-driving trucks in mines and in mining areas reduces the risk of injuries, while at the same time making the work more efficient. Two self-driving mining vehicles are now to be developed in a recently launched project with Chalmers as one of the partners.</b></p><div>​“Self-driving vehicles are important in the mining industry for several reasons,” says Mattias Wahde, professor in vehicle engineering and autonomous systems at Chalmers. “One important reason is that you want to minimize the risk of personal injuries by having as few people as possible in the mine. With self-driving vehicles, staff can control and monitor machinery and equipment from a control room.”</div> <div> </div> <div>Self-driving vehicles can also increase the efficiency, for example through minimized waiting times for the various vehicles in the mine. To this end, Mattias Wahde and his research group will develop algorithms for route planning and coordination, both in the mine and for transport from the mine.</div> <div> </div> <h4 class="chalmersElement-H4">A safe and fully automated transport system</h4> <div>The purpose of the project is to build a safe and efficient fully automated transport system, able to navigate in narrow spaces such as mines, but also on public roads. The material from the mine can thus be transported without a driver in the vehicle, all the way from the mining area to the enrichment plant. The system should be able to work both with and without support from various infrastructure systems such as GPS, WiFi and 4G.</div> <div> </div> <h4 class="chalmersElement-H4">Two self-driving vehicles with high traffic safety</h4> <div>Two different transport systems of self-driving trucks will be developed in the project. Both will provide high traffic safety as well as optimized use of the vehicles for mining. The existing infrastructure of the mining area will to a certain extent be adapted to the vehicles.</div> <div> </div> <div>One of the two vehicles will transport ore from the mine to the surface. The ore will then be transported from the transshipment site at the mine to the enrichment facility by the second vehicle, a self-driving truck with trailer. The transports will be monitored via a traffic management system.</div> <div> </div> <div> </div> <div><strong>FACTS: Auto pilot site to plant</strong></div> <div>The project Auto pilot site to plant is running until March 2019. It is funded by Vinnova and led by AB Volvo. Chalmers, AB Volvo, Combitech and Boliden participate in the project.</div> <div><em>Contact</em>: Mattias Wahde, +46 31 772 37 27, <a href="mailto:mattias.wahde@chalmers.se">mattias.wahde@chalmers.se</a></div> <div><em> </em></div> <em> </em><div><em>Text: Malin Persson, Emilia Lundgren</em></div> <em> </em><div><em>Photo: Emilia Lundgren</em></div>Mon, 19 Feb 2018 00:00:00 +0100https://www.chalmers.se/en/news/Pages/Organic-boat-building.aspxhttps://www.chalmers.se/en/news/Pages/Organic-boat-building.aspxOrganic boat building in a nutshell<p><b>​A dinghy with a core made of balsa wood, flax and a cashew nut based epoxy. That’s what eight students at Chalmers are working with this winter. Formula Sailing is a boat building project where 70 percent of the boat core has to be made of biomaterials. In September they will compete in Italy – and during ‘Båtmässan’ they will display the dinghy.</b></p><p>​Since August last year, the students have been designing and building the unusual race dinghy. All the boat builders are all students at the master’s programme Naval Architecture, after studying mechanical engineering their first three years at Chalmers.In an on-campus workshop, the students are laminating the balsa wood boat core with flax and cashew nut based epoxy. Erik Ericsson, one of the students in the project, has been in charge of choosing materials.<br />– We have chosen a core that is a softer and weaker material, balsa wood. And on each side of that core you have a laminate with several layers of flax/bioepoxy. That provides structure with stiffness and strength, says Eriksson. <br />– Epoxy is basically a form a glue that glues together the flax fibers with the core, says Simon Granli who’s also a part of the project group. <br />Eric Eriksson admits the chosen lamination won’t be as good as carbon fiber or glass fiber would be – but those are materials the rules of the competition won’t allow them to use. Based on the flax/cashew nut epoxy’s stiffness to its weight ratio, it’s one of the best possible choices from the organic world. <br />– The weight is important! The less the dinghy weighs, the faster is goes, says Granli. </p> <p><br /></p> <p><strong>Competing in Italy this fall</strong><br />Each year, boats representing universities all over the world compete in a three-day race. Last year, the competition was held in Palermo in September. The two main supervisors at Chalmers then attended the races to see and learn. Most likely the venue will be the same in 2018 and the time will again be late September. <br />During the summer, the Chalmers students will practice sailing the dinghy, and prepare for the competition. The rules state that the sailor of the boat must be a student from the same university as the design and building team, and the recruitment of this person who will be sailing is under way at the time of writing.<br /><br /><strong>Exhibition at Båtmässan</strong></p> <p>From the 3rd to 11th of February, Chalmers Formula Sailing will be exhibiting the sail dinghy at the boat fair, Båtmässan, at Svenska Mässan in Gothenburg, in booth number F04:21 (GKSS).</p> <p><br />See the <a href="https://www.youtube.com/watch?v=XZWEhMJZuNU">video</a></p> <p>Read more about the <a href="/en/centres/sportstechnology/research/sailing/Pages/Formula-Sailing.aspx">Chalmers Formula Sailing project</a></p> <p><span id="ms-rterangepaste-end" style="display:inline-block"><br /></span></p> <strong>FACTS ABOUT THE COMPETITION:</strong><br />Conceive, Design, Implement and Operate are the keywords of the innovative so called CDIO initiative, where the student competition Formula Sailing is included. The goal of the CDIO initiative is to give students a technical fouknowledge base of real-life systems and products, complementing a technical education. Another example of a CDIO project where Chalmers is participating is Formula Student, where students design and build electrical vehicles to race other universities with.<br /><br />Formula Sailing is a part of the <a href="/en/centres/sportstechnology/Pages/default.aspx">Chalmers sports technology initiative</a>. <br /><br /><strong>Text:</strong> Sofia Larsson-Stern<br /><strong>Photo/video:</strong> Johan Bodell<br />Wed, 31 Jan 2018 00:00:00 +0100https://www.chalmers.se/en/news/Pages/Micromasters-programme.aspxhttps://www.chalmers.se/en/news/Pages/Micromasters-programme.aspxA Micromasters programme on electrified and autonomous vehicles<p><b>​Chalmers University of Technology launches Micromasters programme: A digital master’s-level credential to advance careers in the most in-demand fields of automotive engineering.</b></p><p>​Together with EdX, the nonprofit online learning destination founded by Harvard and MIT, Chalmers University of Technology today announced the launching of a flexible, affordable credential for career advancement and an accelerated Master’s degree. Scandinavia’s first MicroMasters® programme will be <em>Emerging Automotive Technologies</em>. <br /></p> <p>The programme is a result from Chalmers long term close collaboration with industry. Micromasters programmes offer a modular credential with a pathway to credit and are designed for learners looking for in-demand knowledge to advance their careers or follow a path to an accelerated on-campus programme.</p> <p>Chalmers is offering a Micromasters programme in Emerging Automotive Technologies, which provides learners with a holistic perspective on emerging technologies fostering sustainability and digitalization within the automotive industry through seven courses and a final capstone exam. This is an advanced, professional, graduate-level foundation in automotive engineering. It represents the equivalent of ca 20 credits of coursework at the Chalmers Masters programmes <em>Automotive Engineering or Systems, Control and Mechatronics.<br /></em></p> Chalmers University of Technology's Micromasters programme in Emerging Automotive Technologies is developed in cooperation with Volvo Cars, Volvo Group and Zenuity and designed to prepare learners for the careers in-demand today. <p>“Volvo Cars is facing a comprehensive competence transformation challenge to stay competitive in the automotive market. Electrification, connectivity and automation is driving a paradigm shift. We believe the ChalmersX Emerging Automotive Technologies Micromasters programme is a valuable complementary tool for both internal training as well as the external recruitment base capabilities” says Mats Moberg, Vice President Complete Vehicle Engineering, Volvo Cars R&amp;D.</p> <p>.</p> <p>Since </p> <p>September 2016, EdX and 25 international partners have launched 46 Micromasters programmes, offering courses in popular subjects, such as cybersecurity, business analytics, data science, artificial intelligence and user experience design. Chalmers University of Technology joins EdX and top global university partners in expanding the initiative, offering learners everywhere access to high-quality, career-focused education.</p> <p>“We are honored to work with Chalmers University of Technology to launch a Micromasters programme in Emerging Automotive Technologies. This offering marks an exciting step toward furthering our shared mission to expand access to high-quality education,” says Anant Agarwal, CEO at EdX and professor at MIT. “The Micromasters programmes on EdX empower learners everywhere to improve their lives and advance their careers. Signaling the next level of innovation in learning, Micromasters programmes are designed to meet the needs of both universities and employers, by providing learners with the in-demand knowledge and skills needed for success in today’s rapidly-evolving and tech-driven world</p> <p>.”</p> <p>Emerging Automotive Technologies begins on March 1st 2018 and is open for enrollment today.</p> <p><br />Watch a <a href="https://www.youtube.com/watch?v=lgD5Xdc6I3w">video </a>about the Emerging Automotive Technologies programme</p> <p><br /></p> <p><a href="http://bit.ly/2kY1eMy"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Read more and r</a><span>egister</span> (External website)</p> <p><br /></p> <p><a href="/en/education/moocs/MicroMasters/Pages/default.aspx"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" />Read more about Micromaster programmes at Chalmers University of Technology</a><br /></p>Fri, 12 Jan 2018 10:00:00 +0100https://www.chalmers.se/en/departments/m2/news/Pages/Effective-aerodynamic-features-of-future-trucks.aspxhttps://www.chalmers.se/en/departments/m2/news/Pages/Effective-aerodynamic-features-of-future-trucks.aspxEffective aerodynamic features of future trucks<p><b>There is no doubt that road vehicle transportation is needed to improve efficiency, to reduce power consumption and to contribute to a sustainable mobility. Aerodynamics plays a crucial role in this, and its optimization can have a significant impact on fuel efficiency. The role of aerodynamic research for transportation is to investigate solutions to improve the aerodynamic performance that minimizes power consumption. The main objective of Guglielmo Minelli&#39;s thesis is, therefore, to reduce drag, controlling the external flow that normally surrounds a road vehicle, by means of &quot;active flow control&quot;.</b></p>​<span style="background-color:initial">Active flow control was shown to be an effective and low energy consumption technique to improve the external aerodynamics of a traveling truck. </span><div><br /></div> <div>“Controlling the flow around a vehicle, one not only minimizes the aerodynamic drag but also improves the comfort of the driver, reducing noise and soiling,” says Guglielmo Minelli.</div> <div><br /></div> <div>He tells that the ambition of Europe is clear: by mid-century, greenhouse gas emissions from transport will need to be at least 60% lower than in 1990 and be firmly on the path towards zero. Emissions of air pollutants from transport that harm our health need to be drastically reduced without delay. </div> <div><br /></div> <div>“Trucks, in particular, need to improve their efficiency to extend their mileage and decrease their power consumption. Thus, improving the aerodynamic features of heavy trucks and road vehicles is a necessary contribution toward the target, and active flow control can play an important role in this” says Guglielmo Minelli.</div> <div><br /></div> <div>The results of his work focus on two main points. First, synthetic jets were shown to be an effective and low energy consumption technique to control a pressure induced separated flow. Both computational fluid dynamics results and wind tunnel experiments demonstrated the efficacy of active flow control by significantly improve the aerodynamic performance of a road vehicle. Second, the computational fluid dynamics hybrid numerical method PANS was shown to be an interesting approach for industrial applications. </div> <div><br /></div> <div>“Its capability to resolve unsteady flow cases preserving the accuracy of the flow structures is shown, even when meshes are relatively coarse.” Says Guglielmo Minelli</div> <div><br /></div> <div>Guglielmo Minelli will defend his thesis “Flow Control for Aerodynamic Drag Reduction of Trucks” <a href="/sv/institutioner/m2/kalendarium/Sidor/Flow-Control-for-Aerodynamic-Drag-Reduction-of-Trucks.aspx">December 8 at 10.00 in lecture hall KB. </a></div> Tue, 05 Dec 2017 14:00:00 +0100https://www.chalmers.se/en/departments/m2/news/Pages/phd-thesis-could-make-a-more-fuel-efficient-aircraft-possible.aspxhttps://www.chalmers.se/en/departments/m2/news/Pages/phd-thesis-could-make-a-more-fuel-efficient-aircraft-possible.aspxPhD thesis could make a more fuel efficient aircraft possible<p><b>Lowering of fuel consumption and emissions is of paramount importance in the aerospace industry but the aircraft engine is a complex system. The different parts are dependent on each other and it’s difficult to determine which component to take care of first and foremost to make the aircraft engine more efficient. Oskar Thulin deals with this in his PhD thesis ”On the analysis of energy efficient aircraft engines”</b></p><div><div>The aircraft engine consists of many integral components and each component will influence the overall performance of the system. Furthermore, the aircraft engine has weight and contributes to drag that must be compensated for by the engine. Using the regular way to assess performance, it is impossible to compare one component's loss to another or to directly relate an individual component's loss to the overall loss. Oskar Thulin has developed an analytical method that makes it possible to directly compare component losses in a system perspective. The method also makes it possible to include weight or caused drag in the analysis.</div> <div><br /></div> <div>&quot;This gives a much more clear picture of how big the losses are for the various components, as well as for each component type&quot; says Oskar Thulin.</div> <div><br /></div> <div>The developed framework is used to study various aircraft engines. In general, it can be said that the hot exhaust gases that leave the engine, the combustion process in itself, and the part of the kinetic energy in the exhaust that is not used to propel the aircraft forward, are the main sources of the overall loss.</div> <div><br /></div> <div>&quot;Based on the analysis you can discuss different technologies that can do something about these dominant losses. This enables a future more fuel-efficient airplane, says Oskar Thulin, who will present his PhD thesis at Chalmers University of Technology<a href="/en/departments/m2/calendar/Pages/On-the-analysis-of-energy-efficient-aircraft-engines.aspx"> on December 6 at 10:00 in HB4. </a></div></div> <div>​<br /></div> Fri, 01 Dec 2017 15:00:00 +0100https://www.chalmers.se/en/departments/m2/news/Pages/International-study--Chalmers-a-top-maritime-university-.aspxhttps://www.chalmers.se/en/departments/m2/news/Pages/International-study--Chalmers-a-top-maritime-university-.aspxInternational study: Chalmers a top maritime university<p><b>The maritime education and research provided at Chalmers University of Technology is of the highest international standard, according to the first global study undertaken in the field.  ​</b></p>​<span style="background-color:initial">This comes as no surprise to those in the division of Maritime Studies on Campus Lindholmen at Chalmers University of Technology. </span><div><br /><span style="background-color:initial"></span><div>“We’ve always hoped and believed that we would be placed high on the list and this is our confirmation. In Sweden we have long had high-quality maritime education and training, and our sailors have a reputation for competence. Over the past ten years we have also worked hard to further develop and improve the quality of the educational programmes,” says Fredrik Olindersson, Head of the Division for Maritime Studies at Chalmers.</div> <div><br /></div> <div><a href="http://iamu-edu.org/about-iamu/">The International Association of Maritime Universities (IAMU) </a>, an organisation whose members include more than sixty of the most prominent universities in the field, is behind the study. Chalmers was elected to IAMU in 2016.</div> <div><br /></div> <div>“It took over a year to become a member. You have to send in masses of documents, and they carry out site visits to make sure you live up to their high standards. Not just anyone can join. At the last Annual Meeting a couple of new universities joined, but several also applied and were not accepted,” Olindersson says. </div> <div><br /></div> <div>The study is intended to give IAMU’s member universities an idea of where their strengths lie and what they could develop. So the organisation does not provide traditional rankings but confines itself to listing, in alphabetical order, the universities that fall in the upper quartile (top 25%) in the three areas studied. </div> <div>“Chalmers University of Technology came out top in all the areas studied – global exchange, strength of research and quality of education. What is most striking about the study is that Chalmers is the most well-balanced university. That is Chalmers’ strength and one that should be nurtured and further developed,” says Takeshi Nakazawa, Executive Director of IAMU.</div> <div><br /></div> <div>Olindersson explains that Chalmers is often used as a model for a maritime educational institution around the world and that is why there are so many international visits to Chalmers. </div> <div><br /></div> <div>So what is the strength of maritime education and training in Gothenburg?</div> <div><br /></div> <div>“In addition to having competent teachers, we are one of the few educational institutions which invests a great deal in simulator education and in the work of simulator instructors. We want to maximise the impact of the expensive time spent in the simulator that forms part of the training.”</div> <div><br /></div> <div>According to Olindersson, Chalmers University of Technology is far ahead of most others in the world in its educational work on sustainability and the environment. All maritime training in the world complies with the International Convention on Standards of Training, Certification, and Watchkeeping for Seafarers (STCW) which governs the minimum standards of training, but like other IAMU members, Chalmers offers education and training at a significantly higher level.</div> <div><br /></div> <div>“The Heads of Programmes have continuously extended the programmes and have placed much greater emphasis on leadership, communication, critical thinking, and sustainability. To improve the eligibility of students, and their employability in the long term, we have also introduced a number of elective courses to the programmes. On the Master Mariner programme, students can choose to specialize in passenger and cruise ships, tanker shipping or the offshore sector. The Marine Engineer programme now includes a high voltage element, and there are elective courses in advanced ship operations, marine risks, and marine ergonomics.”</div> <div><br /></div> <div>On the research side, maritime environmental sciences, maritime human factors and marine technology are strong Chalmers areas. Read more about Maritime Studies here.</div> <div><br /></div> <div>“Global exchange mainly involves student and teacher exchanges, where we’ve increased the options in recent years by teaching the final year in English. What sets us apart is that many other universities don’t do this. However, we’ve got several exchange agreements that are working well and another couple is under way that will hopefully lead to more exchanges,” Olindersson says.</div> <div><br /></div> <div><strong>Swedish simulator centre for shipping</strong></div> <div>Campus Lindholmen houses <a href="/en/departments/m2/simulator-labs/simulators/Pages/default.aspx">Sweden’s most extensive simulator centre for education and research in shipping</a>. There are a total of nine different simulators here. In the full mission bridge simulators, it is possible to carry out complete simulations of the operations performed on a real ship: in different weather conditions, with different types of ships around you and in different areas and ports around the globe, even in narrow straits. Other simulators combine instruments that handle navigation, loading, safety, the engine room and emission control. Together with the Swedish Maritime Administration’s simulators the centre currently offers ten ships’ bridges, two coastal stations, and one maritime rescue coordination centre.</div> <div><br /></div> <a href="/en/departments/m2/research/maritimestudies/Pages/default.aspx"><div>Read more about Maritime Studies at Chalmers here.</div></a><div><strong>Contacts and further information</strong></div> <div>Fredrik Olindersson, Head of the Division for Maritime Studies at Chalmers University of Technology, +46-31-772 2648, <a href="mailto:fredrik.olindersson@chalmers.se">fredrik.olindersson@chalmers.se </a><br /><br /></div> <div>Johan Eliasson, Head of the Marine Engineer programme, Chalmers University of Technology, +46-31-772 2665,<a href="mailto:%20johan.eliasson@chalmers.se"> johan.eliasson@chalmers.se </a></div> <div><br /></div> </div>Fri, 01 Dec 2017 08:00:00 +0100https://www.chalmers.se/en/departments/m2/news/Pages/He-wants-to-stop-dangerous-vibrations.aspxhttps://www.chalmers.se/en/departments/m2/news/Pages/He-wants-to-stop-dangerous-vibrations.aspxHe wants to stop dangerous vibrations<p><b>Industrial PhD student Hans Lindell from Swerea IVF has worked to reduce and investigate how vibrations affect humans for almost 30 years. Recently, he was elected chairman of an international standardization committee working with vibrations. In the committee, he wants to try to influence the standard so that dangerous vibrations can be stopped.</b></p>​<span style="background-color:initial">Vibration damage is the most common occupational disease in Sweden. Every day, 400,000 people work for more than two hours a day with vibrating machines. This causes a large number of chronic damage to the nerves, vessels, muscles and skeletal system. But it doesn’t have to be like this.</span><div><br /></div> <div> - Machines don't need to vibrate and hurt people! There is no physical law that confirms that” says Hans Lindell, who has shown that machines with significantly lower vibrations can be developed.</div> <div><br /></div> <div>With help from research results, it has been possible to rebuild existing machines, such as chisel hammers and nutrunners, to show that it is possible to greatly reduce vibration levels. Two types of vibrations that are attempted to counteract are rotating and translating that goes back and forth. One of the techniques used is called ATVA (Auto Tuning Vibration Absorber) and is based on vibration reductions by counteracting the forces that cause the vibrations. Prototypes are currently being tested in the field with satisfactory results. Recently, the project was also awarded additional funds from Vinnova to scale up the project and introduce prototypes in vibration-free, industrial demonstration environments in full production.</div> <div><br /></div> <div>Hans Lindell thinks that his extensive experience in the field was the reason for him being elected as chairman of the International Standardization Committee named ISO/TC108/SC4/WG3. One of the standards under the group's responsibility is ISO 5349, which states how to measure and assess the risks of vibrations on handheld tools. Hans Lindell thinks that it feels both nervous and at the same time very fun to get the presidency.</div> <div><br /></div> <div>- There is a great need for an adjustment of the current standard so that it also takes into account machines with impacts and shocks that give high frequency vibration which we suspect cause a large part of the damage. As a chairman, you will be able to drive a change&quot; says Hans Lindell.</div> <div><br /></div> <div>A lot of things are already about to happen thanks to Hans Lindell's research. Machines, where the high-frequency vibration is remedied, will be released on the market within one year. As far as ATVA technology is concerned, it probably takes a few years, but future users will get fewer injuries, machine manufacturers get an opportunity to increase their competitiveness and society earns on reduced costs for a disease. However, there is much more to be found in the vibration area. The ATVA technology is applicable to considerably more uses than handheld machines. There is a lot of applications where vibrations need to be reduced.</div> <div><br /></div> <div> - What's so funny is that the deeper you get into a problem, the more unanswered questions are found&quot; says Hans Lindell</div> <div><br /></div> Thu, 23 Nov 2017 14:00:00 +0100https://www.chalmers.se/en/departments/m2/news/Pages/Chalmers-new-project-will-bring-autonomous-and-eco-friendly-public-transportation-into-cities.aspxhttps://www.chalmers.se/en/departments/m2/news/Pages/Chalmers-new-project-will-bring-autonomous-and-eco-friendly-public-transportation-into-cities.aspxBringing autonomous and eco-friendly public transportation into cities<p><b>Sohjoa Baltic is a EU-funded project that aims to facilitate the transition to autonomous and eco-friendly public transport in the cities around the Baltic Sea. The project involves 13 partners across 8 countries. Chalmers will, among other things, contribute with knowledge of vehicle engineering, autonomous technical development, intelligent cooperative driving behavior and risk analysis.</b></p>​<span style="background-color:initial">The project works towards increasing the attractiveness of public transport service and introducing automated driverless electric minibusses, especially for the first and last mile of the journey. It proposes recommendations for eco-friendly and smart automated public transport and guidelines on the organizational set-up. The goal is to achieve profound changes where city residents choose public transport in front of their own car.</span><div><br /></div> <div>Chalmers contributes with its expertise in safety and operational requirements and will conduct research related to service quality, development of new technology for autonomous vehicles, driving behavior, weather impacts, disability adjustment and risk analysis. Responsible for Chalmers part of the project is <a href="/en/Staff/Pages/mauro-bellone.aspx">Mauro Bellone</a>, researcher working with the Adaptive Systems group at the Department of Mechanics and Maritime Sciences.</div> <div><br /></div> <div>Sohjoa Baltic is led by Metropolia University of Applied Sciences in Finland. The project is financed by the EU and has received about 4 million euros.</div> <div>​<br /></div> <div></div> <div><br /></div> <div><img src="/SiteCollectionImages/Institutioner/M2/csm_IBSR_logo_EUflag_1000px_001a756769.jpg" alt="" style="margin:5px;width:645px;height:177px" /><br /><br /><br /><br /><br /></div> Tue, 07 Nov 2017 10:00:00 +0100https://www.chalmers.se/en/areas-of-advance/energy/news/Pages/New-coordinator-for-Sustainable-Vehicle-Technologies.aspxhttps://www.chalmers.se/en/areas-of-advance/energy/news/Pages/New-coordinator-for-Sustainable-Vehicle-Technologies.aspxNew coordinator for Sustainable Vehicle Technologies<p><b>​She does research on tomorrow’s fuels and believes that we need to change our view on transportation. Selma Brynolf is the new coordinator for the profile Sustainable Vehicle Technologies in Chalmers Areas of Advance Transport and Energy.</b></p>​“It's an exciting assignment and I look forward to learning more about the research on transport and sustainable vehicles that is conducted at Chalmers and University of Gothenburg.”<br /><br />As post-doc at the department of Space, Earth and Environment at Chalmers, Selma Brynolf has evaluated the environmental impact of marine fuels from a lifecycle perspective and worked with modeling of energy systems. Since October 2017, she will also coordinate Sustainable Vehicle Technologies, a profile shared between the Areas of Advance Transport and Energy. She will work together with Anders Nordelöf, who continues his assignment as vice coordinator.<br /><br />“I currently work with two main questions”, says Selma Brynolf. “Evaluation of possible future fuels and propulsion technologies for shipping, as well as the role that fuels produced from carbon dioxide and water using electricity could have in the transport sector.<br /><br />Maria Grahn, previous coordinator of Sustainable Vehicle Technologies, is now director of Chalmers Energy Area of Advance.<br /><br />“I am pleased and proud to announce a new, strong leadership for Sustainable Vehicle Technologies. Handing over to Selma Brynolf and Anders Nordelöf feels very good, I am certain that the work will be continued in the best possible way.”<br /><br />Selma points out that an important and challenging part of her research is to find sustainable solutions for all modes of transport. She believes that electrification is a possibility for many parts of the transport sector, not just for cars, and that it is very exciting to follow the development.<br /><br />“But there are many more areas that need to be developed. I also believe that we need to think again and change our view of transport in general and the benefit they give us. I hope to contribute to a slightly more sustainable transport sector.”<br /><br />Text: Julia Jansson och Emilia Lundgren<br />Fri, 03 Nov 2017 10:05:00 +0100https://www.chalmers.se/en/departments/ims/news/Pages/Enhancing-eco-efficiency-through-digitalisation-of-the-maritime-industry-in-the-Baltic-Sea-region.aspxhttps://www.chalmers.se/en/departments/ims/news/Pages/Enhancing-eco-efficiency-through-digitalisation-of-the-maritime-industry-in-the-Baltic-Sea-region.aspxEco-efficiency through digitalisation of the maritime industry<p><b>​ECOPRODIGI is a newly launched EU-funded research project addressing eco-efficiency through digitalisation of the maritime sector in the Baltic Sea region. The project includes 27 partners across 8 countries. Chalmers contribution is digital technology applications.</b></p>​<span style="background-color:initial">ECOPRODIGI is an ambitious 3-year project with 27 partners across 8 countries. Chalmers has received EU-funding to take part in this project, addressing eco-efficiency through digitalisation of the maritime sector in the Baltic Sea region. ECOPRODIGI project kick-starts a unique collaboration between research organisations and the industry end-users to create and pilot digital solutions increasing eco-efficiency throughout the vessel life cycle. Ultimately, the project supports the Baltic Sea region in becoming a front-runner in maritime industry digitalisation and clean shipping.</span><div><br /></div> <div>ECOPRODIGI focuses on creating and piloting digital solutions for vessel performance monitoring, cargo stowage optimization as well as shipyard process optimization. In addition to the digital solutions, the project will produce a roadmap for maritime sector digitalisation and policy recommendations. The project will also design and deliver training programmes for shipyard ecosystems and organize public events to deepen the networks within the maritime sector.</div> <div><br /></div> <div>Chalmers University of Technology is responsible for investigating and piloting digital technology applications, such as 3D-scanning, to enhance the eco-efficiency of shipyard processes (ship building, repair, maintenance, and retrofit).</div> <div><br /></div> <div><img src="/SiteCollectionImages/Institutioner/IMS/Produktionssystem/Ecoprodigi-kickoff-710x250.png" alt="" style="margin:5px" /><br /><em>Participants of the ECOPRODIGI project kickoff in Turku, Finland.</em><br /><br /></div> <div><span style="background-color:initial">ECOPRODIGI is led by the </span><a href="http://www.utu.fi/en/Pages/home.aspx">University of Turku</a><span style="background-color:initial"> (Finland), The project has received more than €3 million from the Interreg Baltic Sea Region Programme. With the partners’ own contributions, the overall project budget is €4.2 million. </span><br /></div> <div><br /></div> <div>The project’s results, news and open events are communicated on our website <a href="http://www.ecoprodigi.eu/" target="_blank">www.ecoprodigi.eu​</a> and on Twitter @ECOPRODIGI_BSR. </div> <div><br /></div> <div>For more information: <a href="/en/projects/Pages/Ecoprodigi-QEco-efficiency-to-maritime-industry-processes-in-the.aspx">Chalmers ECOPRODIGI project page</a></div> <div><br /></div> <div><strong>Contact</strong></div> <div>Björn Johansson</div> <div>bjorn.johansson@chalmers.se</div> <div>+46 31 772 38 09 </div> <div><br /></div> <div><img src="/SiteCollectionImages/Institutioner/IMS/Produktionssystem/Ecoprodigi-logga-1_750x210.png" alt="" style="margin:5px" /><br /><br /><br /></div>Thu, 02 Nov 2017 17:00:00 +0100https://www.chalmers.se/en/areas-of-advance/Transport/news/Pages/New-research-opportunities-as-ElectriCity-grows.aspxhttps://www.chalmers.se/en/areas-of-advance/Transport/news/Pages/New-research-opportunities-as-ElectriCity-grows.aspxNew research opportunities for Chalmers researchers as ElectriCity grows<p><b>​ElectriCity, best known for the electric bus 55 in Gothenburg, is much more than just the bus. As the project grows, new exciting opportunities for research appear. Per Lövsund, coordinator for ElectriCity at Chalmers University of Technology, invites Chalmers researchers to contact him with ideas.</b></p><p><br /></p> <p>“We can perform research projects, master and bachelor thesis projects within ElectriCity, and thereby gain better dissemination and utilisation of our results”, says Per Lövsund, who calls on Chalmers researchers to contact him with ideas for new projects.<br /></p> <p><br /></p> <p>ElectriCity is now growing to include for example smaller trucks, such as waste trucks and distribution cars. This means exciting opportunities for several research areas, Per Lövsund explains. Self-driving vehicles, safety, community planning, noise, thermal optimization, control algorithms, vehicle dynamics, development and recycling of batteries and fuel cells, and charging station requirements are some examples of questions from different research fields, all of which can be studied within the framework of ElectriCity.<br /></p> <p><br /></p> <p>Researchers involved in ElectriCity have access to research platforms such as buses and other vehicles. The project’s demo arena also includes the new urban area Frihamnen and the development of south Chalmers Johanneberg Campus, with a stop for the ElectriCity bus. Here, safety aspects and new innovative solutions at the stop and interactions between vehicles and unprotected road users can be studied.<br /></p> <p><br /></p> <p>The fact that ElectriCity enters a new phase has already generated new research at Chalmers.<br /></p> <p><br /></p> <p>“One project about bus trains and one about autonomous docking at bus stops are just about to take off”, says Per Lövsund. “Another project investigates how bus drivers experience the effects of the Volvo Dynamic Steering system.”<br /></p> <p><br /></p> <p>A workshop is planned to be held at Chalmers to formulate projects on low-frequency noise in urban environment, modeling of noise impact and safety issues regarding quiet buses at bus stops.<br /></p> <p><br /></p> <p>“In the long run, perhaps other sectors could be included as well. I personally think that the marine sector would be interesting”, says Per Lövsund. “Chalmers has great competence in this field, for example through <a href="http://www.sspa.se/">SSPA </a>and <a href="http://www.lighthouse.nu/">Lighthouse</a>.” <br /></p> <p><br /></p> <p>ElectriCity has run in Gothenburg for two years and is a collaboration between industry, academia and society, where the participants develop and test solutions for tomorrow’s sustainable public transport. The electric and hybrid buses of route 55, where different technology solutions are tested and developed, run between the two campuses of Chalmers. The project has created a lot of international interest.<br /></p> <p><br /></p> <p>“The international attention has given us new networks and new interesting research topics”, concludes Per Lövsund.</p> <p><br /></p> <p>Are you a Chalmers researcher and have a project idea for ElectriCity? Contact Chalmers coordinator Per Lövsund, <a href="mailto:per.lovsund@chalmers.se">per.lovsund@chalmers.se</a><br /></p> <p><br /></p> <p><a href="http://www.electricitygoteborg.se/">Read more about ElectriCity &gt;&gt;</a><br /><br /></p> <p><br /></p> <p><em>Text: Christian Boström, Emilia Lundgren</em><br /></p>Mon, 23 Oct 2017 00:00:00 +0200https://www.chalmers.se/en/departments/m2/news/Pages/Effective-engine-encapsulation-designs-can-reduce-fuel-consumption.aspxhttps://www.chalmers.se/en/departments/m2/news/Pages/Effective-engine-encapsulation-designs-can-reduce-fuel-consumption.aspxEffective engine encapsulation designs can reduce fuel consumption<p><b>The Chalmers researcher Blago Minovski shows in his thesis how improved simulation methods for engine encapsulation can provide the industry with help in designing more sustainable vehicles.</b></p><div>During the past decade, we have witnessed considerable progress towards electrification in the car industry, but the internal combustion engine will continue to be present in most vehicles for a few decades in the future. This means that it is still relevant to improve our internal combustion engines. One way to do this can be to encapsulate the engine. Blago Minovski presents in his Ph.D. thesis </div> <div>&quot;<em>Engine Encapsulation for Increased Fuel Efficiency of Road Vehicles</em>&quot; a method for calculating and predicting fuel savings in combustion engines through engine encapsulation design. </div> <div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial">- The computational efficiency of the method allows quick simulations that can be performed early in the vehicle design stages </span>in<span style="background-color:initial"> order to find the most beneficial encapsulating solution, says Blago Minovski </span></div> <div><span style="background-color:initial"><br /></span></div> <div>All internal combustion engines contain engine oil, which lubricates their parts during operation. Like many other fluids, engine oil becomes thicker at low temperatures. This also leads to a significant increase of the unwanted engine friction and makes the engine consume more fuel when cold. Thermal engine encapsulation is a combination of shells, mounted around the engine, that insulate it from the cold environment and keep it warm for a long time after we turn it off. This way it is more likely that the engine will be warm and efficient next time we start it. </div> <div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial">To design an engine encapsulation is a complex engineering task, which requires knowledge of the energy transport through the entire powertrain of the vehicle. Blago Minovski has applied an effective way to calculate the variation of the temperatures of the parts and the oil in the engine after we turn it off. This is central for the correct prediction of the potential benefits from encapsulating the engine.</span></div> <div><span style="background-color:initial"> </span></div> <div>- Every gram of fuel that we can avoid burning for transportation reduces our environmental footprint. Thermal engine encapsulation is a technical solution which offers a step in this direction. I hope that my research effort will contribute to the design of better and more sustainable future vehicles,  says Blago Minovski. </div> <div><br /></div> <div>Blago Minovski will present his thesis on October 27 at 10:00 in HA2. </div> <div><a href="/sv/institutioner/m2/kalendarium/Sidor/Engine-Encapsulation-for-Increased-Fuel-Efficiency-of-Road-Vehicles-.aspx">See the event here &gt;&gt;​​</a></div> <div><div> </div></div> Fri, 20 Oct 2017 08:00:00 +0200https://www.chalmers.se/en/departments/chem/news/Pages/New-initiative-process-engineering.aspxhttps://www.chalmers.se/en/departments/chem/news/Pages/New-initiative-process-engineering.aspxNew initiative in process engineering at Chalmers<p><b>​In order to provide new opportunities for research in process engineering, the Chalmers University of Technology Foundation invested SEK 32.2 million in new equipment and personnel. The purchased MRI equipment means unique opportunities for process research.</b></p><p>​<img class="chalmersPosition-FloatRight" src="/SiteCollectionImages/Institutioner/KB/Generell/Nyheter/Bengt%20Andersson200.jpg" width="200" height="212" alt="" style="height:182px;width:170px;margin:5px" />During the 1990s process engineering was heavily invested in in Sweden, but lately the focus has been more on developing the product itself than its manufacturing process. With the Chalmers University of Technology Foundation’s initiative for process engineering, new knowledge and new possibilities will be made to streamline the chemical engineering processes. The investment made it possible for the Department of Chemistry and Chemical Engineering to purchase new powerful magnetic resonance imaging equipment, MRI, which can depict non-optically available processes, enabling analyse in detail of what happens when, for example, chemicals are mixed into pulp or when medicine dissolves in stomach acid. Chalmers is one of a handful of universities in the world with similar MRI equipment, and this now give companies like Alfa Laval, AstraZeneca, Tetra Pak, Valmet, SCA, several new opportunities for collaboration with Chalmers in process engineering. </p> <blockquote dir="ltr" style="font-size:14px;margin-right:0px"><p style="font-size:14px"><span style="font-size:14px">– With the facility, we will be able to contribute to more efficient use of today's process equipment because we will know more about what actually happens inside the device. We will be able to see what is relevant to improve. It may not be the mechanisms that we today think give effect that actually do, and process equipment can therefore be more expedient, says Bengt Andersson, responsible for the MRI infrastructure.</span></p></blockquote> <p>In multi-phase flow, ie process of material in multiple phases, for example emulsions or blends of liquids and fibres, using traditional methods, it is not possible to directly see what happens. The new MRI gives an opportunity to accurately follow the entire process. For example, in the case of paper pulp bleaching, it is difficult to see how the turbulent mixing occur, where it stands still and where it is most in motion. More knowledge can lead to better materials, but also better utilization of equipment in the process industry.</p> <blockquote dir="ltr" style="font-size:14px;margin-right:0px"><p style="font-size:14px"><span style="font-size:14px">– The process industry has noticed that it is not enough only to buy new equipment to progress. They must also look at the equipment they already have and see if it can be used more efficiently. In addition, the materials are becoming so advanced that it is not enough to look at the final composition of the product. You also have to consider how the manufacturing process shapes it, says Professor Bengt Andersson.</span></p></blockquote> <p>In addition to the investment in MRI equipment of SEK 15.4 million over six years, the Foundation's commitment to process engineering also meant that both the Department of Chemistry and Chemical Engineering and the Department of Mechanical and Maritime Sciences could employ a new research assistant each.</p> <p><br /><img src="/SiteCollectionImages/Institutioner/KB/Generell/Nyheter/mri2700.png" width="750" height="199" alt="" style="margin:5px" /><br /><br />Text and image: Mats Tiborn</p>Thu, 19 Oct 2017 00:00:00 +0200