FRACTAL DIMENSION OF TIME SERIES APPLIED TO IDENTIFICATION OF CRITICAL SPEED OF JEFFCOTT ROTOR SYSTEM |
| |
Authors: | Zhao Yucheng Sun Kun Zhang Yahong Xu Qingyu |
| |
Abstract: | The dynamical behaviors of logistic map(May's model) and duffing equation are studiedthrough fractal dimension of time series at different parameters. It is shown that the parameters ofdynamical behaviors can be identified effectively by the curve of fractal dimension with parameterincrements. For further verification, the relation between the fractional dimension of time series androtational speed can be used to identify critical speed effectively by using this method to a plate Jef-foctt rotor system. The numerical and experimental result indicates that the identification of criticalparameters is effective. |
| |
Keywords: | Fractal dimension Rotor system Critical speed |
本文献已被 CNKI 维普 万方数据 等数据库收录! |