Abstract: It is significant that the system models and contribution rank of transfer paths for vibration and noise problems are researched, but it is very difficulty that the contribution rank of transfer paths are syllabify and accurately clarified at present. Based on sensitivity technique, the problem for parameter contribution rank of vibration transfer paths is solved. The sensitivity is employed as measurement criterion, and the effective approach for parameter contribution rank of vibration transfer paths is presented. The ideal numerical results are obtained. The parameter contribution rank of contributions among multiple and/or multi-dimensional paths is interpreted correctly and expressly in time domain.

Key words: Parameter contributions, Path, Time domain, Transmission, Vibration