| AUTOMOTIVE ELECTRIC POWER STEERING SYSTEMS NVH PERFORMANCE INVESTIGATIONS
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| 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 |
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| ABSTRACT |
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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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Corresponding Author.
Jakub Wróbel , Email. 
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