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A novel wavelet-based finite element method for the analysis of rotor-bearing systems

机译:基于小波分析的转子轴承系统有限元分析

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摘要

The rotor dynamic theory, combined with finite element method, has been widely used over the last three decades in order to calculate the dynamic parameters in rotor-bearing systems. Since the wavelet-based elements offer multi-scale models, particularly in modeling complex systems, the wavelet-based rotating shaft elements are constructed to model rotor-bearing systems. The effects of translational and rotatory inertia, the gyroscopic moments, the transverse shear deformations, and the internal viscous and hysteretic dampings are considered in the present formulation. Numerical examples and experimental studies show the correctness of the wavelet-based finite element model of rotor-bearing system. Results of forward and backward whirl speeds and damped stability are presented and compared with other published works.
机译:在过去的三十年中,转子动力学理论与有限元方法相结合已被广泛使用,以计算转子轴承系统中的动力学参数。由于基于小波的元素可提供多尺度模型,尤其是在对复杂系统进行建模时,因此基于小波的旋转轴元素可用于建模转子轴承系统。在本公式中考虑了平移和旋转惯性,陀螺力矩,横向剪切变形以及内部粘性和滞后阻尼的影响。数值算例和实验研究表明,基于小波的转子轴承有限元模型是正确的。提出了前后旋转速度和阻尼稳定性的结果,并与其他已发表的作品进行了比较。

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