吉林大学学报(工学版) ›› 2015, Vol. 45 ›› Issue (6): 1751-1756.doi: 10.13229/j.cnki.jdxbgxb201506003

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Inverse sub-structuring transfer path analysis method

MO Chou, CHEN Ji-qing, LAN Feng-chong   

  1. School of Mechanical & Automotive Engineering, South China University of Technology, Guangzhou 510640,China
  • Received:2014-03-03 Online:2015-11-01 Published:2015-11-01

Abstract: An inverse sub-structuring transfer path analysis method is proposed. First, the dynamic stiffness of powertrain mounting system is computed using the frequency response functions of the vehicle system and substructure systems. Then, the vibration signals are processed by wavelet de-noising technology, and the loads are computed by combing the vibration data measured in actual condition. Finally, the vibration or noise transfer path is analyzed. A case study is carried out with a mini bus to demonstrate the effectiveness of the proposed method. Compared with conventional transfer path analysis method, the efficiency of the proposed method increases by 50% and the accuracy is equivalent.

Key words: vehicle engineering, transfer path analysis, inverse sub-structuring technology, wavelet de-noising, neural fuzzy logic algorithm

CLC Number: 

  • TB53
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