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Application Research of Statistical Energy Analysis on Vehicle Sound Package

  • Xiaoxuan ZhangEmail author
  • Xingrang Wu
  • Yuhu Cheng
  • Hongying Jin
  • Jun Zhang
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 201)

Abstract

A whole vehicle SEA model is established by hybrid method combining body structure and sound package. Modal density, damping loss factor and sound package material parameters are obtained by testing and then applied into the vehicle model. The vehicle acoustic performances are tested at both ideal running condition and operating condition, and the tested results at ideal running condition are used to correct the SEA model. The outer cavity sound pressure tested in vehicle at operating condition is used as the excitation for prediction of the interior noise. The difference between the predicted interior noise and the tested results is less than 3 dB(A), which shows good correlation. Two optimized methods are proposed to reduce a vehicle interior noise by 1 ~ 3 dB(A) without the changes of weight.

Keywords

Statistical energy analysis Sound package Noise Modal density Damping loss factor 

Notes

Acknowledgments

The authors would like to thank the following individuals for their assistance and support: Dr. Pang Jian, Frank WU, and other colleagues all from Changan Auto Global R&D Center.

References

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Xiaoxuan Zhang
    • 1
    • 2
    Email author
  • Xingrang Wu
    • 1
    • 2
  • Yuhu Cheng
    • 1
    • 2
  • Hongying Jin
    • 1
    • 2
  • Jun Zhang
    • 1
    • 2
  1. 1.Changan Auto Global R&D CenterMainlandChina
  2. 2.State Key Laboratory of Vehicle NVH and Safety TechnologyChongqingChina

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