한국자동차공학회논문집 (Transactions of the Korean Society of Automotive Engineers)

  • 제9권6호
  • /
  • Pages.178-185
  • /
  • 2001
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  • 1225-6382(pISSN)
  • /
  • 2234-0149(eISSN)
한국자동차공학회 (The Korean Society of Automotive Engineers)
권호 표지

진동-음향 상반성을 이용한 차실-트렁크 연성계의 소음평가

Noise Estimation in a Passenger Compartment and Trunk Coupled System by Using the Vibro-Acoustic Reciprocity

  • 이진우 (서울대학교 대학원) ;
  • 이장무 (서울대학교 기계항공 공학부) ;
  • 김석현 (강원대학교 기계메카트로닉스 공학부) ;
  • 박동철 (현대자동차 남양만 연구소)
  • 발행 : 2001.11.01
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초록

This paper describes the correlation between the interior noise and the trunk wall vibration. Using the vibro-acoustic reciprocity, effect of the trunk wall vibration on the compartment noise is investigated on a medium size car. In the low frequency range, vehicle interior noise is dominated by several acoustic modes of the passenger compartment and the vibration modes of the surrounding shell parts. Especially, vibration of the trunk wall radiates sound and it is transferred through holes on the package tray into the passenger compartment. This paper experimentally reveals that sound can be well produced at some particular vibration modes of the trunk lid and it strongly influences the compartment noise through package tray holes. Contributions of the trunk walls to the interior noise are estimated by measuring the acoustic-structural transfer function, based on the vibro-acoustical reciprocity theorem.

키워드

참고문헌

  1. Journal of Sound and Vibration v.80 no.2 Structural-Acoustic Finite Element Analysis for the Automobile Passenger Compartment: A Review of Current Practice D.F.Nefske(et al)
  2. ASME Transactions, Journal of Vibration, Acoustics, Stress and Reliability v.106 no.2 A Coupled Structural-Acoustic Finite Element Model for Vehicle Interior Noise Analysis S.H.Sung;D.J.Nefske
  3. ASME Transactions, Journal f Vibration and Acoustics v.120 no.4 A Practical Method for Noise Reduction in a Vehicle Passenger Compartment S.H.Kim;J.M.Lee
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  6. 한국자동차공학회 논문집 v.5 no.3 스피커 구멍을 통한 차실과 트렁크 공간과의 음향 연성에 대한 간접 경계요소해석 정지훈;이정권
  7. 한국 소음진동공학회 추계학술대회 초록집 트렁크 연성효과를 고려한 차실 음향모델링에 관한 연구 강상욱;이장무;김석현
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  13. 현대자동차 연구보고서 저주파대역 부밍문제 해결을 위한 차실 연성해석 기법 이장무