Characteristic analysis of looseness-rubbing coupling fault in dual-disk rotor system
Characteristic analysis of looseness-rubbing coupling fault in dual-disk rotor system
复制标题
双盘转子系统联轴器松动碰摩故障特征分析
作者：
Yang Liu;Xingyu Tai;Qinliang Li;Liyuan Dong;Bangchun Wen
针对轴承座松动引起的转子-轴承系统松动-碰摩耦合故障，建立了双盘三联支承松动-碰摩耦合故障转子-轴承系统的力学模型和有限元模型。采用松动支承等效刚度模型、非线性有限元法、接触理论和小波包分解原理，研究了摩擦刚度和松动刚度对系统动力学特性的影响。结果表明，在时域上存在高低交替的峰值，而在信号的轨道图上出现梯形。还发现，倍频（2X）在振动信号中具有高能量分布。可以作为松动-碰摩耦合故障的故障频带。这两个特征（梯形和倍频）可以作为诊断松碰耦合故障的依据。
For the looseness-rubbing coupling fault rotor-bearing system caused by pedestal looseness, the mechanical model and finite element model of dual-disk triad-supported looseness-rubbing coupling fault rotor-bearing system were established in this paper. The research of dynamics characteristics about the effect of rubbing stiffness and looseness stiffness on the system was done with equivalent stiffness model on the loose support, nonlinear finite element method, contact theory and the wavelet packet decomposition principle. It was demonstrated that alternating high and low peaks exist in the time domain while the trapezoidal shape appears in the orbit diagram of the signal. It was also found that the double frequency (2X) has a high energy distribution in the vibration signal. It could be used as fault frequency band of the looseness-rubbing coupling fault. These two characteristics (trapezoidal shape and double frequency) could serve as a basis in diagnosing looseness-rubbing coupling fault.
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影响因子：
1.6
作者：
Teng Yunnan;Wen Bangchun;Ma Hui;ZHao Xueyan
通讯作者：
ZHao Xueyan
影响因子：
5.6
作者：
Chieh-Li Chen;H. Yau
通讯作者：
Chieh-Li Chen;H. Yau
影响因子：
4.1
作者：
N. Lesaffre;J. Sinou;F. Thouverez
通讯作者：
N. Lesaffre;J. Sinou;F. Thouverez
DOI：
--
发表时间：
2007
期刊：
--
影响因子：
--
作者：
Lu Yanjun;R. Zhaohui;Chen Hong;Wen Bang-chun
通讯作者：
Lu Yanjun;R. Zhaohui;Chen Hong;Wen Bang-chun
基于赫兹接触理论的摩擦转子系统动力学分析
DOI：
10.4028/www.scientific.net/amr.479-481.743
发表时间：
2012-02
期刊：
Advanced Materials Research
影响因子：
--
作者：
Yang Liu;Qinliang Li;Yazhe Chen;Bangchun Wen
通讯作者：
Bangchun Wen