| 大间隙环流中同心转子涡动模式的数值分析 |
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| 引用本文： | 苏程,王杰,孙启国.大间隙环流中同心转子涡动模式的数值分析[J].甘肃科学学报,2006,18(3):55-58. |
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| 作者姓名： | 苏程 王杰 孙启国 |
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| 作者单位： | 兰州交通大学,系统分析与集成研究所,甘肃,兰州,730070 |
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| 基金项目： | 甘肃省自然科学基金
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铁道部专项基金 |
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| 摘 要： | 用数值积分方法分析了大间隙环流中同心Jeffcott转子系统的涡动模式.结果表明大间隙环流作用下的同心转子系统的涡动模式取决于转速, 系统也将产生半速涡动并最终以正向涡动模式失稳.而Stocks流体动力质量使Jeffcott转子系统产生正反向涡动的非协调振动,是引起系统涡动模式变化的重要参数.
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| 关 键 词： | 大间隙环流 转子动力学系统 涡动模式 数值积分法 |
| 文章编号： | 1004-0366（2006）03-0055-04 |
| 收稿时间： | 2006-03-07 |
| 修稿时间： | 2006年3月7日 |
A Numerical Analysis for the Whirling Mode of Concentric Rotor Immersed in Large-Gap Annular Flow |
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| SU Cheng,WANG Jie,SUN Qi-guo.A Numerical Analysis for the Whirling Mode of Concentric Rotor Immersed in Large-Gap Annular Flow[J].Journal of Gansu Sciences,2006,18(3):55-58. |
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| Authors: | SU Cheng WANG Jie SUN Qi-guo |
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| Abstract: | The whirling mode of a concentric Jeffcott rotor immersed in large gap annular flow is studied by numerical integration methods. The results show that the whirling mode of a concentric Jeffcott rotor is associated with the rotation speed of the rotor, and the system also will be whirling at half of the rotor rotation speed and become unstable at the speed on the forward whirling mode. The Stock mass is an important parameter inducing the rotor system whirling mode to change, due to its non-concordant vibration in the forward and backward whirling. |
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| Keywords: | large-gap annular flow rotordynamic system whirling mode numerical integration method |
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