The Vibration and Noise of Vehicle Induced by Road Force

• Main Authors: Ming-Wei Lin, 林名威
• Other Authors: 洪振發
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/03074366945814407883

碩士 === 國立臺灣大學 === 工程科學及海洋工程學研究所 === 97 === Vibration and noise are usually generated when vehicles drive on the road, which may reduce the quality of ride comfort. This paper conducted the modal analysis for white body model by FE-analysis to compare with experiment results, in order to control the the uncertainties of the FE-model of the main structures. Then the frequency response functions of whole car model subjected to tire input force were conducted. The frequency response function of the cavity structure adopted from above mention whole body results were used as the boundary condition for vibro-acoustic analysis, then solve the pressure distribution in vehicle by boundary element software. This thesis established a completely analysis procedure, from modal analysis、frequency response analysis and vibro-aucoustic analysis, so that the vibration and noise of vehicle induced by input tire force from road surface can be predicted.