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International Journal of Automotive Technology > Volume 23(4); 2022 > Article
International Journal of Automotive Technology 2022;23(4): 1153-1161.
doi: https://doi.org/10.1007/s12239-022-0101-3
Jakub Wróbel 1, Damian Pietrusiak 1, Wiesław Fiebig 1, Mateusz Czechowski 2
1Mechanical Department, Wrocław University of Science and Technology
2NVH Department, Nexteer Automotive Poland
PDF Links Corresponding Author.  Jakub Wróbel  , Email. jakub.wrobel@pwr.edu.pl
This paper deals with noise and vibration problems in electric power steering systems used in modern automotive platforms. Various types of commonly used power steering systems are presented. The noise and vibration performance of new EPS designs can have a significant impact on users. Computational FEM methods used to investigate the dynamic properties mechanical systems were implemented to situationally test the NVH performance of EPS systems. Computational FEM model building procedure is presented with detailed description of crucial EPS system elements and contacts. Conventional EPS vibro-acoustic measurement techniques such as modal testing and Field Data Replication are presented alongside newer techniques such as acoustic camera measurements.
Key Words: NVH, Electric power steering, EPS, FEM, Acoustic camera, Modal analysis
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