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논문 기본 정보

자료유형
학술대회자료
저자정보
저널정보
한국자동차공학회 한국자동차공학회 춘 추계 학술대회 논문집 한국자동차공학회 2000년 추계학술대회논문집 2호
발행연도
2000.11
수록면
510 - 517 (8page)

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vehicle Vibration & Noise is evaluated by Sound Pressure Level in cavity. In order to reducing Solll1d Pressure Level. Vehicle vibration is to reduce. Vehicle Vibration is affected by engine force, road profile and Structure of Vehicle etc. Engine force and road profile is impossible to change, so to reduce SPL(Sound Pressure Profile) is to lower level of panel vibration. After running normal mode analysis, Mode shapes showed that which modes were global or local. Modal participation to SPL(Sound Pressure Level) got firm Modal Participation factor analysis. But the contribution of panel vibration to SPL was not found
This paper focuses on how to get contribution of panel vibration. Sensitive position of panel was found by applying acoustic reciprocity. To verify results, mass was added to sensitive panel position. SPL was reduced after mass was added. Also similar result got firm result of modal participation factor analysis.
This method is applicable to predict position of sensitive panel vibration.

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ABSTRACT

Nomenclature

Subscripts

1.INTRODUCTION

2.THEORY

3.ANALYSIS MODEL

4.ANALYSIS RESULTS

5.CONCLUSION

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UCI(KEPA) : I410-ECN-0101-2009-556-014002626