| 非线性转子的低频振动失稳机理分析 |
| |
| 引用本文： | 陈予恕 丁千 等. 非线性转子的低频振动失稳机理分析[J]. 应用力学学报, 1998, 15(1): 113-117 |
| |
| 作者姓名： | 陈予恕 丁千 等 |
| |
| 作者单位： | 天津大学 |
| |
| 基金项目： | 国家自然科学基金,天津市自然科学基金,高校博士点基金 |
| |
| 摘 要： | 包括两部分内容：１）材料内阻作用下转子自激振动的局部分岔分析；２）考虑湍流因素的滑动轴承油膜力作用下转子轴承系统油膜失稳机理的全面分析。结果表明，非线性转子的自激振动表现出复杂的动力学现象，这些低频振动现象的揭示，为工程上转子故障的识别和预防提供了理论依据。
|
| 关 键 词： | 非线性转子；低频自激振动；材料内阻尼；油膜力；分岔 |
A Study on the Mechanism of Low Frequency Vibration Unstability of Nonlinear Rotor System |
| |
| Chen Yushu Ding Qian Memg Quan. A Study on the Mechanism of Low Frequency Vibration Unstability of Nonlinear Rotor System[J]. Chinese Journal of Applied Mechanics, 1998, 15(1): 113-117 |
| |
| Authors: | Chen Yushu Ding Qian Memg Quan |
| |
| Abstract: | Two parts are included in this paper:1.local bifurcation of rotor self excited vibration affected by material internal damping; 2.general approach on dynamics of a rotor/bearing system, in which the turbulent effect on the hydrodynamic lubricating film force is considered. The results show the complicated nonlinear dynamical behaviours in the nonlinear rotor system. The revealing of the low frequency vibration is useful in recognizing and protecting the subharmonic resonant failures of rotor. |
| |
| Keywords: | nonlinear rotor low frequency vibration internal damping oil film force bifurcation. |
| 本文献已被 CNKI 维普 等数据库收录！ |
