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FRACTAL DIMENSION OF TIME SERIES APPLIED TO IDENTIFICATION OF CRITICAL SPEED OF JEFFCOTT ROTOR SYSTEM 被引量:3
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作者 Zhao Yucheng Sun Kun +1 位作者 Zhang Yahong Xu Qingyu 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2005年第3期446-448,共3页
The dynamical behaviors of logistic map(May's model) and duffing equation are studied through fractal dimension of time series at different parameters. It is shown that the parameters of dynamical behaviors can be ... The dynamical behaviors of logistic map(May's model) and duffing equation are studied through fractal dimension of time series at different parameters. It is shown that the parameters of dynamical behaviors can be identified effectively by the curve of fractal dimension with parameter increments. For further verification, the relation between the fractional dimension of time series and rotational speed can be used to identify critical speed effectively by using this method to a plate Jeffoctt rotor system. The numerical and experimental result indicates that the identification of critical parameters is effective. 展开更多
关键词 Fractal dimension rotor system critical speed
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