| 动压气体轴承-转子系统稳定性分析 |
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| 引用本文： | 张强,张永峰,陈钊.动压气体轴承-转子系统稳定性分析[J].现代机械,2008(5). |
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| 作者姓名： | 张强 张永峰 陈钊 |
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| 作者单位： | 中国飞行试验研究院,陕西,西安,710089 |
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| 摘 要： | 本文建立了普通圆柱型动压气体轴承支承的单盘转子系统模型,写出了系统的运动方程,并引用气体轴承的动力特性数值分析所得到的8个动力特性系数,利用Routh-Hurwitz准则,研究了系统的稳定性,计算表明所设计的轴承-转子系统在设计转速范围内的运转是稳定的。讨论了气体轴承结构参数偏心率,长径比及平均径向间隙对稳定性的影响,得出了应当采用小偏心率,小长径比,大平均径向间隙提高轴承转子系统稳定性的结论。
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| 关 键 词： | 动压气体轴承 Jeffcott转子 稳定性 Routh-Hurwitz准则 |
Stability Analysis of Gas Bearing-rotor System |
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| ZHANG Qiang,ZHANG Yongfeng,CHEN Zhao.Stability Analysis of Gas Bearing-rotor System[J].Modern Machinery,2008(5). |
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| Authors: | ZHANG Qiang ZHANG Yongfeng CHEN Zhao |
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| Abstract: | This paper studies a model of a rigid rotor supported by self-acting gas journal bearings.The system's motion equations are presented and solved.Referring to eight stiffness and damping coefficients,the stability of the system is studied on Routh-Hurwitz Criterion and it is proved that the system is stable during the rotating speed.It is studied that the gas bearing's structure parameters including eccentricity,length and clearance have a great effect on the stability of this system,and conclusions that small eccentricity and length and large clearance should be designed are given. |
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| Keywords: | gas bearings rotor stability Routh-Hurwitz criterion |
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