| 磁悬浮阻尼器对磁悬浮转子系统动态特性影响 |
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| 引用本文： | 谢振宇,李克雷,赵钦泉,黄佩珍.磁悬浮阻尼器对磁悬浮转子系统动态特性影响[J].航空动力学报,2008,23(6):1087-1092. |
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| 作者姓名： | 谢振宇 李克雷 赵钦泉 黄佩珍 |
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| 作者单位： | 1.南京航空航天大学 机电学院, 南京 210016 |
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| 基金项目： | 国家自然科学基金
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江苏省自然科学基金 |
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| 摘 要： | 为改善磁悬浮轴承细长转子系统的动态性能,在原有支承基础上增加磁悬浮阻尼器.分析了磁悬浮轴承与磁悬浮阻尼器组合柔性转子系统的动态性能,并与不含磁悬浮阻尼器系统的动态性能进行了比较.由于增加了合适位置及合适控制参数的磁悬浮阻尼器,提高了系统在第1,2阶弯曲模态振动时的阻尼,使系统顺利越过二阶弯曲临界转速在16000r/min稳定运行.
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| 关 键 词： | 航空、航天推进系统 磁悬浮轴承 动态特性 固有频率 振型 阻尼 |
| 文章编号： | 1000-8055(2008)06-1087-06 |
| 收稿时间： | 8/6/2007 12:00:00 AM |
| 修稿时间： | 2007年8月6日 |
Influence of magnetic damper on dynamic characteristics of magnetic bearing system |
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| XIE Zhen-yu,LI Ke-lei,ZHAO Qing-quan and HUANG Pei-zhen.Influence of magnetic damper on dynamic characteristics of magnetic bearing system[J].Journal of Aerospace Power,2008,23(6):1087-1092. |
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| Authors: | XIE Zhen-yu LI Ke-lei ZHAO Qing-quan and HUANG Pei-zhen |
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| Institution: | 1.College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China2.College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
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| Abstract: | Dynamic characteristics of the system supported by two radial magnetic bearings,one axial magnetic bearing and one magnetic damper are studied in this paper.Compared with the system without magnetic damper,supporting damping of the system increases obviously and the vibration of the system can be reduced effectively,especially when it operates on the first two bending critical speeds.This helps the system to get across the first two bending critical speeds safely and operate on 16 000 rotations per minute. |
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| Keywords: | aerospace propulsion system active magnetic bearing dynamic characteristics critical speed mode shape damping |
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