| Muszynska模型经验系数对转子系统稳定性的影响 |
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| 引用本文： | 李勇,董宏云.Muszynska模型经验系数对转子系统稳定性的影响[J].热能动力工程,2011,26(1). |
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| 作者姓名： | 李勇 董宏云 |
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| 作者单位： | 东北电力大学,能源与机械工程学院,吉林,132012 |
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| 摘 要： | 基于Muszynska模型,推导建立密封流体激振力作用下的转子一密封系统非线性动力学方程.对运动微分方程进行数值分析,研究了该系统的分岔特性以及Muszynska模型中经验系数对系统稳定性的影响规律.分析结果表明,密封流体激振力导致的转子非线性动力学行为具有非常复杂的演化过程,其中平均周向速比常数及描述平均周向速比与转子涡动之间关系的经验系数是影响转子系统稳定性的关键因素,而其它经验系数影响均在5%以内,该结果为降低相关的实验费用提供了理论依据.
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| 关 键 词： | 转子-密封系统 Muszynska模型 稳定性 密封流体激振 |
Influence of Muszynska Model Empirical Coefficient on the Stability of a Rotor System |
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| LI Yong,DONG Hong-yun.Influence of Muszynska Model Empirical Coefficient on the Stability of a Rotor System[J].Journal of Engineering for Thermal Energy and Power,2011,26(1). |
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| Authors: | LI Yong DONG Hong-yun |
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| Affiliation: | LI Yong,DONG Hong-yun(College of Energy Source and Mechanical Engineering,Northeast University of Electric Power,Jilin,China,Post Code: 132012) |
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| Abstract: | Based on Muszynska model,derived and established was a non-linear dynamic equation for a rotor-gland seal system under the action of a seal fluid excitation force.A numerical analysis was performed of the movement differential equation and a law governing the influence of the bifurcation characteristics of the system under discussion and the empirical coefficient in Muszynska model on the system stability was studied.The analytic results show that the nonlinear kinetic behavior of the rotor caused by the se... |
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| Keywords: | rotor-gland seal system Muszynska model stability seal fluid excitation |
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