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엔진 가진력의 감도해석을 이용한 차실 소음 저감에 관한 연구
오재응(J. E. Oh),김태욱(T. U. Kim),송재은(J. E. Song),이해승(H. S. Lee) 한국자동차공학회 1997 한국 자동차공학회논문집 Vol.5 No.4
Vehicle interior noise has become increasingly important in this recent years. 'The noise of a vehicle is one of the important problems in a vehicle design. The interior noise is caused by various vibration sources of vehicle compartment. The booming noise of a vehicle can be significantly affected by vibrations transmitted from engine excitation forces to the vehicle body. Specially, we are interested in the state of trasmission paths such as engine mounts to reduce noise in a vehicle compartment.<br/> In this paper, we have been calculated the contribution of each transmission path such as engine mounts to interior noise. To identify contribution of each input sources and transmission paths to output, the effectiveness of each input component to output is calculated. Sensitivity analysis is carried out for investigation of contribution to output due to input variations. With the simulation of magnitude and phase change of inputs using vector synthesis diagram, the trends of synthesized output vector are obtained. As a result, we<br/> suggested sensitivity analysis of vector synthesis as a technique of prediction and control for noise in a vehicle compartment.<br/>