Dynamic characteristics of cracked uncertain hollow-shaft

被引：92
|
作者：
Yang, Yongfeng [1 ,2 ]
Wu, Qinyu [1 ]
Wang, Yanlin [1 ,3 ]
Qin, Weiyang [1 ]
Lu, Kuan [1 ]
机构：
[1] Northwestern Polytech Univ, Inst Vibrat Engn, Xian 710072, Shaanxi, Peoples R China
[2] Northeastern Univ, Minist Educ, Key Lab Vibrat & Control Aeroprop Syst, Shenyang 110819, Liaoning, Peoples R China
[3] CRRC Zhuzhou Elect Locomot Inst Co Ltd, Zhuzhou, Peoples R China
来源：
MECHANICAL SYSTEMS AND SIGNAL PROCESSING | 2019年 / 124卷
基金：
中国国家自然科学基金;
关键词：
Shaft; Hollow; Crack; Uncertain; ROTOR SYSTEM; NONLINEAR DYNAMICS; RESPONSE ANALYSIS; VIBRATION; STABILITY; GEAR; BEHAVIOR; MODEL; CHAOS;
D O I：
10.1016/j.ymssp.2019.01.035
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Considering the parametric uncertainties, the model of a rotor system with transverse crack is investigated. Polynomial Chaos Expansion is used to describe the uncertainties. The Harmonic Balance method is employed to solve the dynamic equations of cracked uncertain hollow-shaft system. The application of the PCE in hollow shaft structures will be tested and the results can provide practical reference for engineering context. Validation of present method is verified by comparing with Monte Carlo simulations. From the simulation results, the multi-vibration peaks near the first critical speed and the sub-critical speeds are sensitive to the uncertain parameters. When considering the uncertain parameters, the non-linear responses in harmonic components of the rotor system are key indicators for the detection of transverse crack. (C) 2019 Elsevier Ltd. All rights reserved.
引用
收藏
页码：36 / 48
页数：13
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