엔진의 소음ㆍ진동발생기구 및 전달특성 규명 (다차원 해석법과 벡터합성법에 의한 차실소음원 규명 및 소음 저감)

With the study for identifying the transmission characteristics of vibration and noise generated by operating engine system of a car, recently many engineers have studied actively for the reduction of vibration and noise inducing uncomportability to the user. [n this study, output noise was analyzed by multi-dimensional spectral analysis and vector analysis method. The multi-dimensional analysis method is very effective in case of identification of primary source. but this mehod has little effect on suggestion for interior noise reduction. For compensatition for this. vector synthesis method was used to obtain effective method for interior noise reduction. after identifying primary source for output noise.