| 大型异步电机结构振动特性的研究 |
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| 引用本文： | 王天煜,王凤翔,白浩然,张国卫. 大型异步电机结构振动特性的研究[J]. 机械强度, 2009, 31(1) |
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| 作者姓名： | 王天煜 王凤翔 白浩然 张国卫 |
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| 作者单位： | 沈阳工业大学,电气工程学院,沈阳,110178;沈阳工程学院,机械工程系,沈阳,110136;沈阳工业大学,电气工程学院,沈阳,110178 |
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| 摘 要： | 精确计算电机的固有频率和响应,对于预测电机的振动和噪声是至关重要的.文中利用三维有限元分析研究大型感应电机定子的振动模态和固有频率,并分析绕组、端盖、连接筋及安装方式对电机定子固有频率和振动模态的影响;研究表明,对于大型异步电机,定子绕组对固有频率和振动模态有显著的影响,安装端盖和机座固定使定子固有频率上升,通过改变机座及端盖结构可改变定子固有频率,避免发生共振,采用弹性连接筋,可有效减小定子振动的传播.实验验证部分计算结果.
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| 关 键 词： | 大型异步电机 固有频率 模态 有限元分析 脉冲激振实验 |
STUDY ON VIBRATION BEHAVIOR OF LARGE INDUCTION MOTORS |
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| WANG TianYu,WANG FengXiang,BAI HaoRan,ZHANG GuoWei. STUDY ON VIBRATION BEHAVIOR OF LARGE INDUCTION MOTORS[J]. Journal of Mechanical Strength, 2009, 31(1) |
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| Authors: | WANG TianYu WANG FengXiang BAI HaoRan ZHANG GuoWei |
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| Affiliation: | 1.School of Electrical Engineering;Shenyang University of Technology;Shenyang 110178;China;2.Department of Mechanical Engineering;Shenyang Institute of Engineering;Shenyang 110136;China |
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| Abstract: | Accurate calculation of the stator resonant frequencies and harmonic of an electrical machine is essential to the prediction of acoustic noise and vibration.The 3D finite element analysis is used to study on the stator modal shapes and resonant frequencies of large induction motors.The influence of winding,end-bell,coupling rib and mounting style on the resonant frequencies and modal shapes of the stator are investigated.The study shows that the stator windings have a significant effect on the resonant freq... |
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| Keywords: | Large induction motor Resonant frequency Modal shape Finite element analysis Impulse force test |
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