FEM simulation of acoustic radiation from electric drivelines in heavy trucks

​Monika Stoyanova presents her master thesis titled "FEM simulation of acoustic radiation from electric drivelines in heavy trucks".
Student: Monika Stoyanova

Supervisors: Anders Frid, Martina Andersson and Sven Norberg

Examiner: Håkan Johansson

Opponent: Willhelm Sjödin

​Abstract

Switching from conventional drivelines to electric drivelines in heavy trucks is a crucial step in the development towards a more sustainable transportation. However, with this change the noise emitted from a vehicle is more tonal compared to the broad-spectrum noise from a vehicle with a combustion engine, which can in some situations be perceived as disturbing. Therefore, it is of interest to study and reduce the noise emission from electric drivelines. In this thesis, the main goal is to develop an efficient method based on finite element method (FEM) to simulate the noise emission from an electric drive unit (EDU) during excitation using the commercial software Abaqus. 
Using the commercial software Abaqus, the forward-coupled structural-acoustic problem can be solved. Both, direct-solution steady-state dynamic analysis and modal-based steady-state dynamic analysis were performed. One of the conclusions that can be drawn is that the direct-solution is more appropriate for solving the exterior acoustic problem than the modal-based solution since it shows a reasonable behavior approaching higher frequencies.

Category Student project presentation
Location: M Beta, conference room, Hörsalsvägen 7A, M-huset
Starts: 02 June, 2022, 13:15
Ends: 02 June, 2022, 14:30

Page manager Published: Mon 16 May 2022.