Abstract
A wavelet-based Rayleigh-Euler rotating beam element using B-spline wavelet on a interval (BSWI) is proposed. Each edge node is collocated six degrees of freedom (DOFs): three translations and three rotations, whereas each inner node only is collocated three translations. The DOFs of each node denote transverse displacements and slops, torsion deformation and axial displacement. The wavelet finite element model of flexible rotor-bearing systems is also built up and the effects of gyroscopic moments, rotary inertia, hysteric and viscous internal damping, cross-coupled stiffness and damping coefficients of bearings are included in the proposed element. Typical numerical examples indicate that the proposed wavelet finite element method has good performance and is suitable for dynamic analysis of complex rotor-bearing systems in engineering.
| Original language | English |
|---|---|
| Pages (from-to) | 1-5+19 |
| Journal | Zhendong yu Chongji/Journal of Vibration and Shock |
| Volume | 27 |
| Issue number | 9 |
| State | Published - Sep 2008 |
Keywords
- Beam element
- Dynamic analysis
- Flexible rotor
- Wavelet finite element method