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应用分力合成方法提高系统性能指标的研究

陕晋军,刘暾,齐乃明,赵宝山   

  1. 哈尔滨工业大学航天学院,哈尔滨工业大学航天学院,哈尔滨工业大学航天学院,哈尔滨工业大学航天学院 哈尔滨150001 ,哈尔滨150001 ,哈尔滨150001 ,哈尔滨150001
  • 发布日期:2003-02-25

Study on Performance Improvement of Systems Using CSVS Me thod

Shan Jinjun Liu Dun Qi Naiming Zhao Baoshan (School of Astronautics, Harbin Institute of Technology,Harbin 150001)   

  • Published:2003-02-25
  • Supported by:
    国家 2 1 1资金资助学科建设项目

摘要: 提出了将柔性结构的分力合成主动振动抑制方法和反馈控制律结合使用来提高柔性结构控制系统性能指标的方法。应用该方法仅需要知道闭环系统及柔性振动的频率及阻尼 ,而且可以同时抑制任意多个振动模态 (包括控制器引起的振动、柔性振动及其他形式的振动 )。分力合成方法对频率及阻尼的不确定性具有较强的鲁棒性 ,使该方法易于工程实现。文章针对单柔性杆 ,将分力合成主动振动抑制方法和反馈控制相结合 ,设计了不同形式的大角度机动控制律 ,数值仿真和试验结果充分验证了方法的有效性

关键词: 挠性结构, 分力合成主动振动抑制方法, 反馈控制, 数值仿真

Abstract: A new method to improve the performance of flexible sy stems by combining CSVS method with feedback controller is proposed. Its application needs onl y frequencies and damping ratios of closed loop and flexible modes and can be used to eliminate arbit rary vibration modes simultaneously , which may include controller induced, flexible vibration and other kinds of vibration. The stronger robustness of CSVS method to uncerta inty in frequency makes it more practicable in engineering. For a kind of flexib le single link, various large and damping ratio angle slewing strategies are des igned by applying CSVS method to feedback control loop. Numerical simulation and hardware experiments validate the effectiveness of this method.includecontrollerinduced ,flexiblev