| 地震载荷作用下转子轴承系统动力响应特性 |
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| 引用本文： | 富露霞,曹名慧,朱向哲.地震载荷作用下转子轴承系统动力响应特性[J].辽宁石油化工大学学报,2018,38(6):76. |
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| 作者姓名： | 富露霞 曹名慧 朱向哲 |
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| 作者单位： | 辽宁石油化工大学 机械工程学院，辽宁 抚顺 113001 |
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| 基金项目： | 辽宁省教育厅项目（L2010247，2009A431）。 |
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| 摘 要： | 以某汽轮机转子-轴承系统为研究对象，考虑轴系陀螺力矩和转动惯量的影响，建立了转子-轴承系统动力学有限元模型。通过在X方向和X-Y方向输入不同的地震动峰值加速度并改变相位角的方法，研究了转子-轴承系统在地震激励下的动力响应特性。分析了转子-轴承系统关键节点的等效应力和位移变化趋势，讨论了地震载荷作用下汽轮机转子-轴承运行的安全性，旨在为转子-轴承系统的抗震设计提供一定的理论参考。
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| 关 键 词： | 转子-轴承系统 地震激励 等效应力 位移 安全性 |
| 收稿时间： | 2017-09-15 |
Dynamic Response Characteristics of Rotor-Bearing System under Seismic Load |
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| Fu Luxia,Cao Minghui,Zhu Xiangzhe.Dynamic Response Characteristics of Rotor-Bearing System under Seismic Load[J].Journal of Liaoning University of Petroleum & Chemical Technology,2018,38(6):76. |
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| Authors: | Fu Luxia Cao Minghui Zhu Xiangzhe |
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| Affiliation: | School of Mechanical Engineering，Liaoning Shihua University，Fushun Liaoning 113001，China |
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| Abstract: | Taking the rotor-bearing system of a steam turbine as the research object, considering the influence of the shaft gyro moment and moment of inertia, the finite element model of rotor-bearing system dynamics is established . The dynamic response characteristics of the rotor-bearing system under earthquake excitation are studied by inputting different ground motion peak acceleration and changing phase angle in X direction and X-Y direction. The equivalent stress and displacement trends of key nodes in rotor-bearing system are analyzed, and the safety of turbine rotor-bearing operation under seismic load is discussed. The aim is to provide a theoretical reference for the seismic design of rotor-bearing system. |
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| Keywords: | Rotor-bearing system Earthquake excitation Equivalent effective stress Displacement Safety |
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