A novel visual transfer path analysis method with coupled vibration source based on inverse substructuring technique

作者：Guo R; Zhou S; Zhang T; Qiu S

来源：Journal of Tongji University(Natural Science), 2015, 43(4): 584-591.

DOI：10.11908/j.issn.0253-374x.2015.04.015

• Coupled vibration source
• Frequency response function
• Inverse substructuring method
• Transfer path analysis

Due to the limitations of the existing transfer path analysis (TPA) methods, a novel TPA method with coupled vibration source is proposed based on the frequency response FRF)-based substructuring technique and the detailed process of the method is also proposed. The new method is applied to a simplified finite element model simulating the powertrain and the body of a vehicle. The dynamic characteristics of the substructures and the joints can be identified in coupled condition by the inverse substructuring approach. And then the FRFs of the coupled system can be obtained through the FRFs of the substructures by substructuring approach. Furthermore, the vibration transfer path contribution analysis is carried out and the dominant paths and substructure FRFs are found. The novel method is proved to be feasible and convenient to be applied in the engineering.

• 出版日期2015
• 单位同济大学