Volume 22 Issue 6
Jun.  2007
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YANG Yong-feng, REN Xing-min, QIN Wei-yang. Study of nonlinear response of cracked Jeffcott rotor in hovering state[J]. Journal of Aerospace Power, 2007, 22(6): 1007-1012.
Citation: YANG Yong-feng, REN Xing-min, QIN Wei-yang. Study of nonlinear response of cracked Jeffcott rotor in hovering state[J]. Journal of Aerospace Power, 2007, 22(6): 1007-1012.

Study of nonlinear response of cracked Jeffcott rotor in hovering state

  • Received Date: 2006-05-23
  • Rev Recd Date: 2006-11-10
  • Publish Date: 2007-06-28
  • The nonlinear response of crack Jeffcott rotor in leveling and hovering state was studied,while a mathematical model of crack Jeffcott rotor in hovering state was set up,and the corresponding motion equation was derived.The results show that,there are three ways leading to chaos,which are quasi-periodic bifurcation,intermittence bifurcation and instability period-3 motion to chaos.Generally speaking,the hover can depress the nonlinear response of system,but increase considerably the amplitude of system response,thus creating a bigger possibility of axis crack and rotor collision.And,the hover will also lead to nonlinear response near the fraction frequency of swing critical speed.

     

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