A Vehicle Seat Rattle Noise Diagnosis Study Case

DOI

10.2991/nceece-15.2016.100How to use a DOI?

Keywords

BSR (Buzz Squeak and Rattle); Wavelet Transform; Relative Approach3D

Abstract

Vehicle seat rattle noise is one of the common issues in automotive. In general, BSR (Buzz Squeak and Rattle) noises are directly linked to the vehicle NVH (Noise Vibration and Harshness) performance. Most importantly, customers perceive BSR as direct indicator of vehicle build quality and durability. Diagnosing source of BSR is one critical step to solve the issue and it is still very challenging work due to the uncertainty of the impact mechanism at joints which contribute to the BSR. Generally, vehicle on road testing is used to detect the BSR and lab test is used to reconstruct the problems for further measurement and analysis. In this paper, a case of seat rattle noise study started from on road evaluation first, then the seat was installed on a vibration test bench and sound pressure and acceleration were measured in hemi anechoic lab environment. Multiple VNH testing systems, such as LMS Test Lab, Head Acoustic ArtemiS and MB Dynamics were used since each system has unique capability which is necessary for this study. MB Dynamics was used to reconstruct rattle noise condition in hemi anechoic lab environment. LMS Test Lab Wavelet transform and Head ArtemiS Relative Approch3D were adopted in measurement and analysis. Based on sound and vibration measurement, the rattle noise source was identified, confirmed and quantified. It was found that rattle noise originates from the joint of headrest assembly and seat back. The diagnosis results lead to a fairly easy solution to solve the rattle noise issue.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Chunqing Yang
AU  - Cansong Gu
AU  - Lili Su
PY  - 2015/12
DA  - 2015/12
TI  - A Vehicle Seat Rattle Noise Diagnosis Study Case
BT  - Proceedings of the 2015 4th National Conference on Electrical, Electronics and Computer Engineering
PB  - Atlantis Press
SP  - 535
EP  - 541
SN  - 2352-5401
UR  - https://doi.org/10.2991/nceece-15.2016.100
DO  - 10.2991/nceece-15.2016.100
ID  - Yang2015/12
ER  -