宇航学报

宇航学报 ›› 2015, Vol. 36 ›› Issue (11): 1324-1331.doi: 10.3873/j.issn.1000-1328.2015.11.015

• 环境试验与器件 • 上一篇    下一篇

磁悬浮飞轮优化设计与实验

刘强, 武登云, 韩邦成, 樊亚洪   

  1. 1. 北京石油化工学院机械工程学院，北京 102617； 2. 北京控制工程研究所，北京 100190；
    3. 北京航空航天大学“惯性技术”重点实验室，北京 100191
  • 收稿日期:2014-11-21 修回日期:2015-02-06 出版日期:2015-11-15 发布日期:2015-11-25
  • 基金资助:

    国家自然科学基金（51405022）

Optimization and Test of Magnetic Bearing Flywheel

LIU Qiang, WU Deng yun, HAN Bang cheng, FAN Ya hong   

  1. 1. School of Mechanical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China;
    2. Beijing Institute of Control Engineering, Beijing 100190, China;
    3. Key Laboratory of Inertial Technology, Beihang University, Beijing 100191, China
  • Received:2014-11-21 Revised:2015-02-06 Online:2015-11-15 Published:2015-11-25

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摘要：

针对在轨磁悬浮飞轮转子系统，考虑发射主动段振动工况，提出一种基于灵敏度分析的多学科优化设计方法。通过比较分析内、外锁紧方案对锁紧状态飞轮转子系统共振频率的影响，得到了较优的抱式外锁紧方案。在此基础上，对飞轮转子进行灵敏度分析，并选择高灵敏度结构参数作为优化设计变量。考虑其结构强度、转动惯量、控制性能、自由状态和锁紧状态一阶共振频率，以飞轮转子质量最小为优化目标，利用序列二次规划法对其进行多学科优化设计。优化结果表明，在满足发射振动工况下，飞轮转子极转动惯量与质量的数值比达到最大为0.0070，比初始值0.0064提高了9.4%。该优化方法提高了飞轮转子设计的可靠性和效率，其首次在轨实验成功对我国磁悬浮飞轮空间应用具有重要意义。

关键词: 磁悬浮飞轮, 优化设计, 灵敏度, 锁紧机构, 空间应用

Abstract:

Aiming at rotor system of magnetic bearing flywheel during launch vibration, a multidisciplinary optimization method based on sensitivity analysis is presented. By comparatively analyzing the resonance frequencies of flywheel rotor system under locking state with inner and outer locking constraints, the clamping outer locking scheme is adopted. Upon this, the sensitivity analysis of flywheel rotor is carried out, and the structure parameters with high sensitivity are selected as optimal design variables. The structural strength, inertia moment, control performance and first resonance frequency are concerned. By taking mass as the optimal objective, the flywheel rotor is optimized by sequential quadratic programming method. The optimization results show that the ratio of polar moment of inertia and mass reaches to the maximum of 0.007. It is increased by 9.4% compared with initial ratio of 0.0064. The optimal method improves the design reliability and efficiency of flywheel rotor, and the first successful in-orbit experiment of magnetic bearing flywheel has great significance for space applications.

Key words: Magnetic bearing flywheel, Optimization design, Sensitivity, Locking device, Space application

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