[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.5050/KSNVN.2004.14.10.930

Noise Source Identification of a Car A/V System

홍종호 (서울대학교 대학원 기계항공공학부)
이상호 (현대모비스 카트로닉스 오디오연구부)
강연준 (서울대학교 기계항공공학부)

Publication Information

Transactions of the Korean Society for Noise and Vibration Engineering / v.14, no.10, 2004 , pp. 930-938 More about this Journal

Abstract

This paper presents the noise source identification of a car A/V system. There are two different kinds of noise sources noise generated by loading mechanism and rattle noise by externally forced vibration. A dynamometer has been made to produce stationary inertia to the loading mechanism of A/V system. Sound pressure spectra and sound intensity were measured by operating the dynamometer setup as various motor speeds, and the results were analyzed. A dominant rattle noise source about A/V system's components has been found by multi-dimensional spectral analysis. Residual spectrum method was applied for eliminating coherence between the vibration sources. In result, the dominant rattle noise source was identified by partial coherent output spectrum of individual vibration component.

Keywords

Plastic Gear; Gear Mesh Frequency; Sound Intensity; Rattle Noise; Partiai Coherence Function; Partial Coherent Output Spectrum;

Citations & Related Records

Reference

1	/ [ Bendat, J. S. ] / Random Data : Analysis and Measurement Procedures
2	/ [ Bendat, J. S. ] / Engineering Application of Correlation and Spectral Analysis
3	/ [ Fahy, F. J. ] / Sound Intensity
4	차량 탑재용 A/V 시스템 구동부에서 발생하는 소음원 규명 / [ 홍종호;강연준(외) ] / 한국자동차공학회 춘계학술발표대회 논문집
5	차량용 A/V 시스템의 구동부 소음원과 래틀 소음원에 관한 연구 / [ 홍종호;강연준(외) ] / 한국소음진동공학회 추계학술발표대회논문집
6	전동드릴의 진동특성 및 전파경로 해석 / [ 조윤수;김도현;최연선 ] / 한국소음진동공학회논문집
7	Modern Analysis Procedures for Multiple Input/output Problems / [ Bendat, J. S. ] / J. Acoust. Soc. Am.
8	On the Application of Coherence Techniques for Source Identification in a Multi-Noise Source Environment / [ Wang, M. E.;Crocker, M. J. ] / J. Acoust. Soc. Am. DOI ScienceOn
9	다차원 스펙트럼 해석에 의한 가솔린엔진의 진동원 검출에 관한 연구 / [ 강명순;오재응;서상현 ] / 대한기계학회논문집
10	/ [ Adams, C. E. ] / Plastic Gearing: Selection and Application
11	/ [ 한영수(외) ] / 성형플라스틱 기어핸드북
12	A Study on the Development of Low-Noise Gears / [ Naohisa Tsukamoto;Hiroki Maruyama;Toru Ikuta ] / Transactions of JSME Series C

KSCI

Noise Source Identification of a Car A/V System 차량탑재용 A/Y 시스템의 소음원 규명

Noise Source Identification of a Car A/V System