STRUCTURE-BORNE NOISE PROSPECTING METHOD OF POWER-TRAIN USING HYBRID TRANSFER PATH ANALYSIS, CAPABLE OF REDUCING DEVELOPMENT COST AND TIME

摘要

PURPOSE: A structure-borne noise prospecting method of power-train using hybrid transfer path analysis is provided to predict the noise without manufacturing testing vehicle and possible to cope with the structure change of power train.;CONSTITUTION: A structure-borne noise prospecting method of power-train using hybrid transfer path analysis is as followings. A test for grasping the vehicle power train, real, the vibrational property is proceeded. The vibromotive force obtains the structure-sound transmission function appearing in the form of the noise in a vehicle room(S10). A virtual model reflecting the vibration property of the vehicle power train is made(S20). The vibromotive force of the power train is interpreted by the virtual model of the power train(S30). The vibromotive interpreted from the virtual model and the structure transmission function obtained from the experiment is the input to predict the noise(S40).;COPYRIGHT KIPO 2011