| 带主动磁轴承单盘转子的坠落瞬态响应 |
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| 引用本文： | 方之楚 Barr.,LE.带主动磁轴承单盘转子的坠落瞬态响应[J].上海交通大学学报,1996,30(7):5-11. |
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| 作者姓名： | 方之楚 Barr. LE |
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| 作者单位： | [1]上海交通大学工程力学系 [2]美国弗吉尼亚大学机械工程系 |
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| 摘 要： | 就磁轴承发生故障时转子坠入备用轴承所产竽的非线性瞬态响应，提出了摩擦力的计算模型，从理论上建立了更为精确的运动微分方程，数值积分结果预示，当备用轴承具有很小阻尼或很大阻尼时，会导致系统破坏的逆回旋，为保证系统安全运行，计算了备用轴承的优化阻尼系数。
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| 关 键 词： | 转子系统 磁轴承 备用轴承 摩擦力 瞬态响应 |
Transient Response of Single Disk Rotor with Active Magnetic Bearings During Rotor Drop |
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| Fang,Zhichu.Transient Response of Single Disk Rotor with Active Magnetic Bearings During Rotor Drop[J].Journal of Shanghai Jiaotong University,1996,30(7):5-11. |
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| Authors: | Fang Zhichu |
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| Abstract: | A Coulomb friction model with high accuracy is proposed so that more accurate equations of motion can be established for the transient response of the single disk rotor which drops onto the back up bearing as soon as AMB shuts down. The results of numerical integration predict that there will be backward whirl of the rotor, which may lead to destructive damage of the system if the back up bearing has very light or very high damping. For the purpose of safe rotor operation, the optimum damping range of the back up bearing is computed for various rotor system parameters. |
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| Keywords: | rotor system magnetic bearing back up bearing friction non linear transient response optimal damping coefficient |
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