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Professor Hoda ElMaraghy new honorary doctorThe honorary doctors for 2013 have now been appointed at Chalmers. Wingquist Laboratory's member in the Scientific Advisory Board, Professor Hoda ElMaraghy, University of Windsor, is appointed an honorary doctorate for her outstanding research and her strong international engagement in the area of production. Honorary doctorates are conferred at the annual conferment ceremony, which will be held this year on 1 June 2013. Honorary Doctorate LectureCladistics for Products and Manufacturing
Location: Virtual Development Laboratory, Hörsalsvägen 7A / Chalmers Tvärgata 4-6 (in the alley)
ABSTRAKT Cladidstics is a useful hierarchical classification commonly used in biology for studying evolution of species in nature. The development of this approach and its adaptation for engineering applications will be presented. Results of research using cladistics in co-development of products and manufacturing systems, products and product family architecture, sustainable design and manufacturing systems, assembly systems layout and delayed differentiation for mass customization, manufacturing systems synthesis and optimal product platform granularity will be highlighted.
Wingquist Laboratory VINN Excellence Centre seminars 2013 Date and time: May 17, 14.00-15.00 Location: Virtual Development Laboratory, Chalmers
ABSTRACT Every series of manufactured products has geometric variation. Variation can lead to products that are difficult to assemble or products not fulfilling functional or aesthetical requirements. Therefore, geometry assurance and tolerance management have received considerable amount of attention in both industry and academia. Assembly variation stems from variation in part and fixtures and, variation in joining operations. Furthermore, how variation will propagate throughout the product is heavily dependent on the design concept through locating schemes. Computer aided tolerancing (CAT) tools have enhanced the ability to predict the effects of tolerances and to manage information related to variation throughout the product development process.In order to get accurate results when working with CAT tools it is important to include all relevant sources of variation.
In this presentation, I will address the effects of welding in variation simulation. Because of part variation and variation in fixtures, the parts to be welded will have varying distance to the welding gun. This causes the spatial distribution of the molten zone to vary which will affect the distortions.
Earlier work that have been combining variation simulation with welding simulation have either applied distortion based on nominal welding conditions onto the variation simulation result, hence loosing combination effects, or have used transient thermo-elasto-plastic simulation, which can be very time consuming since the number of runs required for statistical accuracy can be high. Here, we will present a new method to include the effects of welding in variation simulation. It is based on a technique that use a thermo-elastic model, which previously has been shown to give distortion prediction within reasonable accuracy. This technique is suited for variation simulations due to the relative short computation times compared to conventional transient thermo-elasto-plastic simulations of welding phenomena.
The seminars are open to all and held every second week. The one hour seminar about research within VINNEX ends with a short discussion and a Q&A session. Please contact Carina Schultz for more information, 031-772 13 27 or carina dot schultz at chalmers dot se Upcoming seminars2013-05-17 Samuel Lorin (GA)
GA = Geometry Assurance & Robust Design
Last modified:
May 13, 2013
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WINGQUIST LABORATORY - CHALMERS UNIVERSITY OF TECHNOLOGY - 412 96 GOTHENBURG - PHONE: +46 31 772 10 00
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