| 轴承油膜动特性对转子临界转速的效应计算 |
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| 引用本文： | 赵荣珍,宋曦.轴承油膜动特性对转子临界转速的效应计算[J].兰州理工大学学报,1999(1):40-44. |
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| 作者姓名： | 赵荣珍 宋曦 |
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| 作者单位： | 1. 甘肃工业大学机电工程系,兰州,730050
2. 甘肃工业大学基础科学系,兰州,730050 |
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| 摘 要： | 介绍了非定常情况下，滑动轴承动压油膜的动态特性对转子支承刚度的作用．在此基础上建立了基于油膜动力学特性及底座支承刚度动力学模型的计算方法，并用于传递矩阵法求解转子系统的临界转速中．计算结果表明，随着系统的支承刚度下降，转子系统的临界转速是下降的
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| 关 键 词： | 滑动轴承 油膜动特性 支承刚度 转子-轴承系统 临界转速 |
| 修稿时间： | 1998-06-02 |
Calculation of effect of dynamic property of oil film on critical rotation speed of rotor in journal bearings |
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| Zhao Rongzhen,Song Xi.Calculation of effect of dynamic property of oil film on critical rotation speed of rotor in journal bearings[J].Journal of Lanzhou University of Technology,1999(1):40-44. |
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| Authors: | Zhao Rongzhen Song Xi |
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| Abstract: | The effect of dynamic property of the oil film on the supporting rigidity of rotor is investigated in journal bearings under unsteady condition. The calculation method is established based on the dynamic property of the oil film and the dynamic model of supporting rigidity of bearing base, and is used to compute the critical rotation speed of rotor system by matrices transferring method. It is shown by calculation results that the critical rotation speed of rotor system decreases with the decrease of supporting rigitly. |
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