›› 2012, Vol. ›› Issue (06): 1349-1354.

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Application of dynamic vibration absorber in vibration control of rear axle

GUO Nian-cheng1, SHI Wen-ku1, LIU Wen-jun1, WANG Guo-lin2, ZHANG Fei2   

  1. 1. State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130022, China;
    2. Axle Branch Company of Naveco Ltd, Nanjing 210028, China
  • Received:2011-11-08 Online:2012-11-01

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Abstract: The transmission tests were performed for the rear driving axle of a certain vehicle and it was revealed that there was an abnormal vibration domain at the frequency wear 165 Hz. By the modal analysis with the finite element method and the constraint modal test at the bench, it was found that this frequency is the first order bend mode frequency of the rear axle. An optimally tuned damped dynamic vibration absorber was designed aiming at this resonance frequency. A virtual prototype of the absorber was simulated and a real sample was tested on the bench. The results showed that because the first order constraint mode frequency on the real vehicle is near that at the test bench, and the effective frequency band of the dynamic absorber is wide, the designed absorber will behave well also at the real vehicle.

Key words: vehicle engineering, rear axle, dynamic vibration absorber, bench test, modal analysis

CLC Number: 

  • U463.2
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