| 电磁轴承阻尼上限的动态特性分析 |
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| 引用本文： | 徐旸,时振刚,赵雷,于溯源.电磁轴承阻尼上限的动态特性分析[J].武汉理工大学学报(信息与管理工程版),2010,32(2):238-240. |
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| 作者姓名： | 徐旸 时振刚 赵雷 于溯源 |
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| 作者单位： | 清华大学,核能与新能源技术研究院,北京,100084 |
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| 摘 要： | 为了研究电磁轴承系统的高频稳定性问题,需要研究电磁轴承阻尼的动态特性.以单自由度系统中力和刚度、阻尼的基本力学方程为基础,忽略电气系统的影响,推导了在一定的振动幅值下,电磁轴承最大阻尼随转子振动频率增加而变化的关系,结果表明,电磁轴承能够提供的阻尼随着转子转速或振动频率的增加而迅速减小.这在研究高速转子稳定性问题时应给予足够的重视.
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| 关 键 词： | 磁轴承 阻尼 动态特性 |
Maximum Damping Limit of Active Magnetic Bearing |
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| XU Yang,SHI Zhengang,ZHAO Lei,YU Suyuan Assistant Researcher.Maximum Damping Limit of Active Magnetic Bearing[J].Journal of Wuhan University of Technology(Information & Management Engineering),2010,32(2):238-240. |
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| Authors: | XU Yang SHI Zhengang ZHAO Lei YU Suyuan Assistant Researcher |
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| Affiliation: | XU Yang,SHI Zhengang,ZHAO Lei,YU Suyuan Assistant Researcher,Institute of Nuclear , New Energy Technology,Tsinghua University,Beijing 100084,China. |
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| Abstract: | Damping dynamic characteristic of electromagnetic bearing should be investigated in order to study the stability of the bearings under high frequency.Relation between the maximum damping and the rotor vibration frequency in electromagnetic bearing system was studied based on the single degree spring-damper system.The results of an experimental rig test showed that the actual magnetic bearings can provide limited damping,and the damping decreases rapidly with the rotor speed increasing.The electromagnetic be... |
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| Keywords: | active magnetic bearing damping dynamics performance |
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