摘要
建立了脉动流诱发振动转子密封系统的振动模型的一次近似方程,分析了系统的平衡点稳定性问题。从脉动流诱发振动的角度,建立转子密封系统的振动模型的一次近似方程为线性周期系数系统的方程。脉动流诱发振动转子密封系统的振动模型的稳定性判别,采用微分方程稳定性理论当中的线性周期系数系统的稳定性判据,讨论了系统的平衡点稳定性问题。研究表明,系统满足一定情况时能实现零解稳定性。
The first approximate stability criteria of the vibration model in the rotor -seal system are established based on the pulsating flow induced vibration.The stability of the system is analyzed by using the first approximate stability crite-ria.The first approximate stability criteria are the linear equation with periodic coefficients.Therefore,by using stability theory of differential equations periodic coefficients,the stability of the system is analyzed.The investigation also demon-strates that：the proposed method from the point of view of pulsating flow induced vibration can be effectively applied to the analysis of the rotor -seal system.
出处
《工具技术》
2014年第11期29-32,共4页
Tool Engineering
基金
国家自然科学基金(51004005)
北京市优秀人才培养资助项目(2013D5017000013)
