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Qin Weiyang
Ren Xingmin
Department of Mechanics Engineering,
Northwestern Polytechnical University, Xi’an 710072, China
Wang Ping
China Aviation Power-plant
Research Institute,
Zhuzhou 412002, China |
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NON-CONVENTIONAL
BIFURCATION
IN RESPONSE OF CRACKED
JEFFCOTT ROTOR*
Abstract: The cracked rotor is a piecewise linear system due to the breath of crack in shaft with rotation. For the nonsmooth system, the motion equation is derived and solved with numerical integration method. From the result, it can be seen that there exists the grazing bifurcation in the response. The grazing bifurcation can give rise to jump between periodic motion, quasi-period from period, chaos and intermittent chaos.
Key words:
Grazing bifurcation Jeffcott rotor Crack |