| 大间隙环流中转子系统稳定性研究 |
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| 引用本文： | 孙启国,虞烈,谢友柏.大间隙环流中转子系统稳定性研究[J].中国机械工程,2001,12(7):729-732. |
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| 作者姓名： | 孙启国 虞烈 谢友柏 |
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| 作者单位： | 1. 兰州铁道学院;西安交通大学
2. 西安交通大学 |
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| 基金项目： | 国家“九五”攀登计划资助项目(PD9521902)；国家自然科学基金资助项目(19990511)；甘肃省自然科学基金资助项目(ZS991-A22-002-G) |
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| 摘 要： | 采用数值方法研究了转子周围大间隙环流动力学特性及其作用的Jeffcott转子动力学系统的稳定性。结果表明，大间隙环流对转子动力学系统的稳定性有很大的影响，同心转子也将产生半速涡动，最终以正向涡动模式失稳，偏心转子失稳转速有较大的降低，失稳模式取决于系统条件。
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| 关 键 词： | 大间隙环流 转子动力学 稳定性 数值方法 |
| 文章编号： | 1004-132Ⅹ(2001)07-0729-04 |
Study on Dynamic Stability of Rotor in Large Gap Annular Flow |
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| SUN Qiguo.Study on Dynamic Stability of Rotor in Large Gap Annular Flow[J].China Mechanical Engineering,2001,12(7):729-732. |
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| Authors: | SUN Qiguo |
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| Abstract: | Rotor dynamic coefficients of a large gap annular flow and their effects on Jeffcott rotor dynamic system stability are studied by numerical method.The results show that a large gap annular flow has appreciable effects on rotor stability. The rotor at concentricity will be whirling at half of rotor rotation speed and become unstable at a speed on the forward whirling mode;the one at eccentricity will become unstable at a lower speed on the forward or backward whirling modes depending on different conditions. |
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| Keywords: | large gap annular flow rotor dynamics stabilitynumerical method |
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