Influence of dynamic vibration absorbers on bending vibration in vehicle propeller shaft

Paper #:
  • 2018-01-1226

Published:
  • 2018-04-03
Abstract:
Because of limitations in the level of vehicle design, manufacture and assembling, a series of NVH (Noise Vibration and Harshness) problems, should not be ignored and will be occurred. Further study of the methods of improving vehicle NVH problems is one of the most important researching directions in vehicle NVH area. Dynamic vibration absorber is the fastest and most convenient ways. In this paper, the dynamic vibration absorbers (DVA) theory was presented. Based on the finite element analysis and rigid-flexible coupling analysis, combined with an engineering example, propeller shaft analysis model including DVA was established. The matching of stiffness and damping of DVA was presented. The dynamic response of drive shaft system based on the mass ratio of DVA was researched in this paper. Results from simulations and tests indicate that the amplitude of propeller shaft resonance can be effectively reduced by attaching a DVA to the long propeller shaft.
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