Volume 21 Issue 4
Aug.  2006
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WANG Hong-jian, HE Er-ming, YU Shi-xia. Forced response characteristics of bladed disks with disordered dry friction[J]. Journal of Aerospace Power, 2006, 21(4): 711-715.
Citation: WANG Hong-jian, HE Er-ming, YU Shi-xia. Forced response characteristics of bladed disks with disordered dry friction[J]. Journal of Aerospace Power, 2006, 21(4): 711-715.
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Forced response characteristics of bladed disks with disordered dry friction

  • College of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, China

  • Received Date: 2005-09-23
  • Rev Recd Date: 2005-12-21
  • Publish Date: 2006-08-28
    Abstract
  • Dampers in bladed disks are main components for reducing vibration.The dry friction disorder among those dampers can affect their damping performance.In this paper,the harmonic balance method and the technique of fast Fourier transmission were employed to simulate the forced response of bladed disks with nonlinear dry friction.The characteristics of bladed disks with disordered dry friction were investigated and analyzed under different coupling,viscous damping ratio,dry friction strength and the degree of dry friction disorder.The study indicates that the disorder of dry friction can significantly increase the resonant response of bladed disks,especially in the system with weaker coupling and larger viscous damping ratio.

     

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