A novel wavelet-based finite element method for the analysis of rotor-bearing systems
- 作者：Jiawei XiangDongdi ChenXuefeng ChenZhengjia He
- 会议时间：2010-07-17
- 关键词：B-spline wavelet on the interval ; Wavelet-based shaft elements ; Rotor-bearing system ; Modal analysis
- 作者单位：Jiawei Xiang,Dongdi Chen(School of Mechantronic Engineering,Guilin University of Electronic Technology,Guilin 541004.PR China)Xuefeng Chen,Zhengjia He(School of Mechanical Engineering,Xi'an Jiaotong University,Xi'an 710049,PR China)
- 母体文献：国家自然科学基金委员会高性能机床主轴中的关键科学问题”十二五“规划研讨会论文集
- 会议名称：国家自然科学基金委员会高性能机床主轴中的关键科学问题”十二五“规划研讨会
- 会议地点：长沙
- 主办单位：国家自然科学基金委员会
- 语种：chi
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.