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带主动磁轴承单盘转子的坠落瞬态响应 被引量:5

Transient Response of Single Disk Rotor with Active Magnetic Bearings During Rotor Drop
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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生的非线性瞬态响应,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。 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.
出处 《上海交通大学学报》 EI CAS CSCD 北大核心 1996年第7期5-11,共7页 Journal of Shanghai Jiaotong University
关键词 转子系统 磁轴承 备用轴承 摩擦力 瞬态响应 rotor system magnetic bearing back up bearing friction non linear transient response optimal damping coefficient
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同被引文献35

  • 1祝长生.电磁轴承支承的柔性转子在轴承失效后坠落过程中的瞬态响应[J].航空学报,2005,26(3):349-355. 被引量:5
  • 2祝长生.主动电磁轴承失效后转子坠落在备用轴承上的动力学[J].浙江大学学报(工学版),2005,39(11):1773-1778. 被引量:5
  • 3林海.结构控制和阻尼器综述[J].核工程研究与设计,2007(2):40-44. 被引量:5
  • 4Storace A F,Sood D,Lyons J P,et al. Integration of Magnetic Bearings in the Design of Advanced Gas Turbine Engines[J].Journal of Engineering for Gas Turbines and Power, Transactions of the ASME 1995,117(4) : 655-665. 被引量:1
  • 5Chellini, Roberto. Active Magnetic Bearings Simplify Compressor Train Design and Maintenance[J]. Diesel & Gas Turbine Worldwide 1990,22(10) :44-45. 被引量:1
  • 6Wang X, Noah S. Nonlinear Dynamics of a Magnetically Supported Rotor on Safety Auxiliary Bearings[J]. Journal of Vibration and Acoustics, 1998,120 : 596-606. 被引量:1
  • 7Ming-Jyi Jang,Cha'O-Kuang Chen. Bifurcation Analysis in Flexible Rotor Supported by Active Magnetic Bearing[J]. International Journal of Bifurcation and Chaos, 2001,11 (8):2163-2178. 被引量:1
  • 8REITSMA T W.Development of long-life auxiliary bearings for critical service turbomachinery and high-speed motors[C]//Proc.8th International Symposium on Magnetic Beatings,Mito,Japan,2002:507-515. 被引量:1
  • 9KIRK R G,SWANSON E E,KARAVANA F H,et al.Rotor drop test stand for AMB rotating machinery,part 1:Description of test stand and initial results[C]//Proc.4th International Symposium on Magnetic Bearings,Zurich,Switzerland,1994:207-212. 被引量:1
  • 10FUMAGALLI M,SCHWEIZER G.Motions of a rotor in retainer bearings[C]//Proc.5th International Symposium on Magnetic Bearings,Kanazaa,Japan,1998:509-514. 被引量:1

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