| 挤压油膜阻尼器的非线性特性研究 |
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| 引用本文： | 顾致平,支希哲,孟光. 挤压油膜阻尼器的非线性特性研究[J]. 力学与实践, 2003, 25(1): 38-41 |
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| 作者姓名： | 顾致平 支希哲 孟光 |
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| 作者单位： | 西安工业学院建筑工程系,西安,710032;西北工业大学工程力学系,西安,710072 |
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| 基金项目： | 陕西省自然科学计划项目资助. |
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| 摘 要： | 首先借助Reynolds方程导出挤压油膜的压力分布,然后采用二系数法分析挤压油膜阻尼器的非线性特性．理论分析和实例计算的结果都表明：它的刚度系数和阻尼系数都是非线性变化的,是一个高度非线性的元件,用二系数法对其进行线性化会产生很大的误差．
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| 关 键 词： | 非线性分析 挤压油膜阻尼器 转子-轴承系统 |
| 修稿时间： | 2001-07-17 |
NONLINEAR ANALYSIS OF A SQUEEZE-FILM DAMPER |
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| GU Zhiping. NONLINEAR ANALYSIS OF A SQUEEZE-FILM DAMPER[J]. Mechanics and Engineering, 2003, 25(1): 38-41 |
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| Authors: | GU Zhiping |
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| Abstract: | Firstly, the pressure distribution of the squeeze film is derived via the basic Reynold's equation. Then, the nonlinear characteristics of the squeeze-film damper are analyzed by using the two-coefficient method. Theoretical analyses and numerical results show that its stiffness coefficients and damping coefficients are nonlinear with respect to the position, and it is an element of high non-linearity. So, if the nonlinear fluid film forces are linearized by using the two-coefficient method, the caused errors are very great. |
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| Keywords: | nonlinear analysis squeeze-film damper rotor-bearing system |
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