Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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A Research on the Vibration Characteristics of Vehicle due to Speaker Sound at Low Frequency

저주파 스피커 출력음 대비 차량 진동 특성 연구

  • 김기창 (현대자동차 차량기술센터 선행해석실 차량해석팀) ;
  • 김찬묵 (국민대학교 자동차공학전문대학원)
  • Published : 2007.08.20
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Abstract

Recently the trend of automobile industry is that IQS evaluation index against a sensitivity quality is increasing. To reduce rattle noise due to speaker sound at low frequencies, it is required the advanced technology analysis process of body structure. This paper optimized the design parameters of package tray panel according to the theoretical background about robust design and suggested the design guideline for resonance avoidance and the reduction of vibrational sensitivity considering the excitation frequency of woofer speaker. And this paper described the design process of a door module panel through the sensitivity analysis in case of the door speaker excitation. Finally, the analysis of the quality deviation using mother car is suggested to guarantee the stable characteristics of vehicle vibration in the early stage of vehicle development. These improvements can lead to shortening the time needed to develop better vehicles.

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References

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