| 基于ANSYS的大型异步电机转子系统动态特性分析 |
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| 引用本文： | 刘雪梅,倪泽浩,李爱平.基于ANSYS的大型异步电机转子系统动态特性分析[J].中国工程机械学报,2013(6):480-484. |
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| 作者姓名： | 刘雪梅 倪泽浩 李爱平 |
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| 作者单位： | 同济大学机械与能源工程学院,上海201804 |
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| 摘 要： | 采用有限元分析软件ANSYS建立了大型异步电机YKS1000-4TH转子系统的集中质量-梁单元有限元模型和三维有限元模型.采用Qr damped法对两种模型进行了模态分析,求得系统的前3阶固有频率和振型,并计算出相应的主轴临界转速.最后改变油膜支承刚度,分析系统临界转速随油膜刚度的变化规律,为大型异步电机转子系统的设计提供了理论依据.
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| 关 键 词： | 大型异步电机 转子系统 动态特性 模态分析 临界转速 |
ANSYS-based dynamic property analysis on robot system of large-scale asynchronous motors |
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| LIU Xue-mei,NI Ze-hao,LI Ai-ping.ANSYS-based dynamic property analysis on robot system of large-scale asynchronous motors[J].Chinese Journal of Construction Machinery,2013(6):480-484. |
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| Authors: | LIU Xue-mei NI Ze-hao LI Ai-ping |
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| Affiliation: | (School of Mechanical Engineering, Tongji University, Shanghai 201804,China) |
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| Abstract: | The 2D and 3D concentrated mass-beam-unit finite element models are established using AN- SYSTM for YKS1000-4TH rotor system of large-scale asynchronous motors. By employing the Qr damped method for the modal analysis on bespoke two models, the first three orders of system inherent frequen- cies and vibration forms are initially attained. Subsequently, the critical speed of main shaft is calculated. Finally, the oil-film supporting stiffness is changed to analyze the variation oil-film stiffness versus system critical speed. Therein, this approach provides a theoretical reference to rotor system design on large- scale asynchronous motors. |
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| Keywords: | large scale asynchronous motor rotor system dynamic property modal analysis critical speed |
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