| 单跨双圆盘不平衡转子-轴承系统的非线性动力学分析 |
| |
| 引用本文： | 韩清凯,于涛,俞建成,闻邦椿. 单跨双圆盘不平衡转子-轴承系统的非线性动力学分析[J]. 机械工程学报, 2004, 40(4): 16-20 |
| |
| 作者姓名： | 韩清凯 于涛 俞建成 闻邦椿 |
| |
| 作者单位： | 东北大学机械工程与自动化学院,沈阳,110004;东北大学机械工程与自动化学院,沈阳,110004;东北大学机械工程与自动化学院,沈阳,110004;东北大学机械工程与自动化学院,沈阳,110004 |
| |
| 基金项目： | 国家自然科学基金(50275024)，国家863计划(2002AA113080) |
| |
| 摘 要： | 根据30万kW发电机组模型试验台第一跨高中压转子的实际结构,考虑基于短轴承假设的非线性油膜力模型,建立了单跨双圆盘转子动力学模型。用数值方法进行了质量不平衡及油膜失稳条件下的动力学特性分析,得到系统稳态响应和分岔结果。讨论了非线性油膜的刚度特点。这些结果与试验基本一致。对转子-轴承系统的动态设计与故障诊断提供参考。
|
| 关 键 词： | 转子-轴承系统 不平衡 油膜失稳 非线性油膜力 |
| 修稿时间： | 2003-03-20 |
NONLINEAR DYNAMIC ANALYSIS OF UNBALANCED SINGLE-SPAN DOUBLE-DISC ROTOR-BEARING SYSTEM |
| |
| Han Qingkai Yu Tao Yu Jiancheng Wen Bangchun. NONLINEAR DYNAMIC ANALYSIS OF UNBALANCED SINGLE-SPAN DOUBLE-DISC ROTOR-BEARING SYSTEM[J]. Chinese Journal of Mechanical Engineering, 2004, 40(4): 16-20 |
| |
| Authors: | Han Qingkai Yu Tao Yu Jiancheng Wen Bangchun |
| |
| Abstract: | A Dynamic model of single-span double-disc rotor-bearing system is established, which is based on the real structure of the first span, i.e. the high and middle pressure rotor, of a 300 thousand kilowatt turbo generator rig, considering the nonlinear oil-film force model under short bearing assumption. Dynamical behaviors are analyzed under the condition of unbalance and oil-film whip. The steady state responses and bifurcations are obtained with numeral method. The nonlinear oil-film stiffness characteristics are also discussed. These results are coincided with finished experiments. The references to is provided dynamic design and fault diagnosis of rotor-bearing system. |
| |
| Keywords: | Rotor-bearing system Unbalance Oil-film whip Nonlinear oil-film force |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
