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Journal of Applied Sciences
  Year: 2013 | Volume: 13 | Issue: 9 | Page No.: 1652-1656
DOI: 10.3923/jas.2013.1652.1656
 
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Random Vibration Analysis of Semi-trailer Frame Based on Virtual Excitation Method
Hongqi Jiang and Shuncai Li

Abstract:
To determine the structure response of a vehicle frame under random road excitations. A mathematical model was been established using the Euler-Bernoulli beam elements and spring-damper elements for the Multiple-degree-of-freedom (MDOF) vibration of the vehicle frame with a finite element method and adopted a virtual excitation method to construct virtual road excitations based on four points, i.e., front and rear wheels, thus we offered a method for calculating the statistical characteristic of the random vibration response of the vehicle frame and realized characteristic analysis of the random vibration of the vehicle frame based on the virtual excitation method. Through example analysis, we obtained the structure response of the vehicle frame at different vehicle speeds.The results show that the main peak of structure resonance were primarily concentrated within 2 Hz. The response of the vibration on the frame is larger with vehicle velocity.
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How to cite this article:

Hongqi Jiang and Shuncai Li, 2013. Random Vibration Analysis of Semi-trailer Frame Based on Virtual Excitation Method. Journal of Applied Sciences, 13: 1652-1656.

DOI: 10.3923/jas.2013.1652.1656

URL: https://scialert.net/abstract/?doi=jas.2013.1652.1656

 
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