Dynamic characteristics of cracked uncertain hollow-shaft

Yang Yongfeng, Wu Qinyu, Wang Yanlin, Qin Weiyang, Lu Kuan

科研成果: 期刊稿件文章同行评审

103 引用 (Scopus)

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.

源语言英语
页(从-至)36-48
页数13
期刊Mechanical Systems and Signal Processing
124
DOI
出版状态已出版 - 1 6月 2019

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