吉林大学学报(工学版) ›› 2011, Vol. 41 ›› Issue (4): 927-931.

• paper • Previous Articles     Next Articles

Identification and validation of test modal parameters of gearbox housing in a certain tracked vehicle

ZHANG Xi-qing1|XIANG Chang-le2|LIU Hui2   

  1. 1.School of Machinical Engineering, Taiyuan University of Science and Technology,Taiyuan 030024,China;2.National Key Laboratory of Vehicle Transmission|Beijing Institute of Technology|Beijing 100081,China
  • Received:2009-07-30 Online:2011-07-01 Published:2011-07-01

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Abstract:

The theory of identification and validation in the modal test was discussed. The hammering modal test was done for the gearbox housing in a certain tracked vehicle. The model parameters of every order characterizing the dynamic behavior of the housing were identified using PolyMAX method. The identified modal parameters were analyzed and validated using the frequency response function synthesis and the modal assurance criterion before the correction of the structure model and the following dynamic behavior study. The results indicate that the identified modal parameters are accurate.

Key words: vehicle engineering, modal test, modal validation, PolyMAX estimation, gearbox housing

CLC Number: 

  • U469，TB123
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