| 引用本文: | 张建英,刘暾,郑立伟.基于分力合成方法的航天器闭环反馈控制[J].哈尔滨工业大学学报,2010,42(3):384.DOI:10.11918/j.issn.0367-6234.2010.03.012 |
| ZHANG Jian-ying,LIU Tun,ZHENG Li-wei.Closed-loop feedback control of spacecraft based on the component synthesis method[J].Journal of Harbin Institute of Technology,2010,42(3):384.DOI:10.11918/j.issn.0367-6234.2010.03.012 |
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| 摘要: |
| 为了增强分力合成主动振动抑制方法抵抗外界干扰的能力,将分力合成方法与闭环反馈控制相结合同时进行设计.用非约束模态级数方法建立解耦的姿态动力学方程和挠性附件振动方程,通过选取合适的反馈量,在设计闭环反馈参数时将挠性附件的振动和分力合成方法同时加入到约束条件中,得到最佳性能解.通过对单挠性杆模型的仿真,在满足系统各项性能指标的条件下,调整时间较分步设计方法明显减少,证明本文方法的有效性. |
| 关键词: 同时设计方法 挠性振动 分力合成主动振动抑制方法 闭环反馈控制 |
| DOI：10.11918/j.issn.0367-6234.2010.03.012 |
| 分类号:V414.33 |
| 基金项目: |
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| Closed-loop feedback control of spacecraft based on the component synthesis method |
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ZHANG Jian-ying1, LIU Tun1, ZHENG Li-wei2
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1.School of Aeronautics,Harbin Institute of Technology,Harbin 150001,China;2.Beijing Institute of Astronautical Systems Engineering,Beijing 100076,China)
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| Abstract: |
| Concurrent design of component synthesis active vibration suppression(CSVS) method and closedloop feedback control is presented in order to remarkably enhance the insensitivity to external disturbances for CSVS method.The attitude dynamics and vibration equations of rotary motion for the system consisted of central rigid body with flexible appendages are obtained.By using series of unconstrained modal functions,the decoupled motion expressions for both of the central rigid body and flexible appendages are derived.Through choosing appropriate controlled variable,the flexible appendages vibration and CSVS are added to the constraint equations in designing parameters of closed-loop feedback control and the best performance solution are obtained.Numerical simulation on a flexible single beam model shows that the proposed method can suppress not only the inherent flexible harmonics in the system,but also the additional vibrations introduced by the feedback loop.Meanwhile,the settle time is shorter than that of normal control method. |
| Key words: concurrent design method flexible vibration CSVS closed-loop feedback control |
