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다차원스펙트럼 해석법을 이용한 엔진방사소음 규명에 관한 연구
오재응(J.E.Oh),백문열(M.Y.Beck),김준우(J.W.Kim),김진동(J.D.Kim) 한국자동차공학회 1993 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
With the advance of the standard of living, the demand on automobile goes beyond the simple transportation equipment. therefore the interior noise reduction has been the important factor for improvement of ride quility. Noise during idling is transmitted by the vibration of engine mount is a major vehicle characteristic determining occupant comfort In the present research two approaches for noise source identification based on theory for multiiple-input system have been investigated. The concepts of the frequency response function and the multi-dimensional spectral analysis were used to estimated the spectra of the noise source that were accounted for in the multiple-input model.<br/>