Optimization of the vibro-acoustic package in the light-weighting of a van body

Yanrong Song, Oluremi Olatunbosun

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

There is increasing demand for lightweight vehicle structures due to the requirement for low fuel consumption. As the basic component of the vehicle body, the body-in-white (BIW) structure can be made substantially lighter by using lighter gauge body panels. However, lighter gauge panels tend to generate more vibration and interior noise, so it is necessary to use an optimized vibro-acoustic package in order to achieve a better level of vibro-acoustic performance while minimising the increase in vehicle body weight. In this paper the vibro-acoustic package for a light weight van body is optimised by judicious application of panel damping treatment to appropriate parts of the structure to damp out local panel resonances in the BIW’s structural response, resulting in 5.42 dB reduction in overall modal mobility for a 1.37% increase in the BIW’s weight.
Original languageEnglish
Title of host publicationINTER-NOISE 2017 - 46th International Congress and Exposition on Noise Control Engineering
Subtitle of host publicationTaming Noise and Moving Quiet
Place of PublicationHong Kong
PublisherInstitute of Noise Control Engineering
Pages6439-6447
Number of pages9
Volume2017-January
Publication statusPublished - 30 Aug 2017
Event46th International Congress and Exposition on Noise Control Engineering: Taming Noise and Moving Quiet, INTER-NOISE 2017 - Hong Kong, China
Duration: 27 Aug 201730 Aug 2017

Publication series

NameInternoise

Conference

Conference46th International Congress and Exposition on Noise Control Engineering: Taming Noise and Moving Quiet, INTER-NOISE 2017
Country/TerritoryChina
CityHong Kong
Period27/08/1730/08/17

Keywords

  • Design of experiments
  • Dynamic performance
  • Light weighting
  • Optimization
  • Vibro-acoustic package

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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