[1]邱志成,吴宏鑫.基于特征模型的挠性结构自适应振动控制[J].智能系统学报,2007,2(5):36-41.
QIU Zhi-cheng,WU Hong-xin.Adaptive control for vibration of flexible structures based on the characteristic model[J].CAAI Transactions on Intelligent Systems,2007,2(5):36-41.
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QIU Zhi-cheng,WU Hong-xin.Adaptive control for vibration of flexible structures based on the characteristic model[J].CAAI Transactions on Intelligent Systems,2007,2(5):36-41.
基于特征模型的挠性结构自适应振动控制
《智能系统学报》[ISSN 1673-4785/CN 23-1538/TP] 卷:
2
期数:
2007年第5期
页码:
36-41
栏目:
学术论文—智能系统
出版日期:
2007-10-25
- Title:
- Adaptive control for vibration of flexible structures based on the characteristic model
- 文章编号:
- 1673-4785(2007)05-0036-06
- 分类号:
- TP273
- 文献标志码:
- A
- 摘要:
- 航天器是一种由中心刚体和挠性附件组成的刚柔耦合复杂系统，由于系统调姿或外部扰动作用时将引起振动，尤其是在平衡位置的小幅度振动对姿态稳定度和指向控制精度严重影响，并且难以控制.为了解决该问题，采用基于特征模型的黄金分割自适应控制方法，并引入逻辑微分阻尼项进行振动主动控制.建立了刚柔耦合结构实验平台，进行了包括位置设定点及转动振动主动控制的算法实验比较，结果表明，采用的基于特征模型的方法得到了比较理想的振动抑制效果，尤其是对低频小幅值振动的抑制，在相同条件下，与传统控制方法相比，大大减少了振动抑制的时间.实验研究表明采用的算法快速抑制振动的有效性.
- Abstract:
- Spacecraft are kinds of coupled systems made up of rigid bodies and flexible ap pendages. Vibration is unavoidably induced by attitude control or external excit ations. Low amplitude vibration near the equilibrium point is especially difficu lt to suppress, and this is harmful to stability and attitude control accuracy. To solve this problem, a golden section adaptive control method based on the cha racteristic model was adopted, in which a differential damping term was introduc ed to suppress vibration. An experimental setup was designed and manufactured to verify this approach. The effectiveness of active vibration controllers at supp ressing unwanted vibration due to environmental excitation was investigated, esp ecially undesirable oscillations caused by motor torque during hub slewing. Expe rimental results show that this algorithm not only increases the effectiveness of vibration damping but also damps low amplitude vibrations near the equilibri um point faster than traditional control schemes, proving that this control sche me improves control of vibration.
- 参考文献/References:
-
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［7］王晓磊，吴宏鑫. 挠性航天器振动抑制的自适应方法及实验研究［J］. 宇航学报，2005 ，26(3): 275-281.
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备注/Memo
收稿日期：2007-02-28.
基金项目：
国家自然科学基金资助项目(60404020)；
国家自然科学基金空天飞行器重大研究计划资助项目(90505014)；
广东省自然科学基金资助项目(05006499)
作者简介：
邱志成，男,1973年生，博士，副教授，主要研究方向为挠性结构的建模与控制、机器人学与机器人控制.发表论文30余篇，其中SCI、EI和ISTP收录15篇. E-mail：zhchqiu@scut.edu.cn.
吴宏鑫，男，1939年出生，研究员, 博士生导师, 中国科学院院士,主要研究方向为智能控制、自适应控制、航天器控制.曾获国家发明三等奖1项，部级科技进步一等奖1项、二等奖4项，全国优秀科技图书二等奖1项，获国家发明专利2项.发表论文70余篇，出版专著1部.
更新日期/Last Update:
2009-05-07