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| 利用在轨航天器扰动响应辨识其动力学参数的研究 | |
| 引用本文： | 赵寿根,程伟,姚军,孙国江,唐颖倩. 利用在轨航天器扰动响应辨识其动力学参数的研究[J]. 振动与冲击, 2005, 24(6): 65-67,84 |
| 作者姓名： | 赵寿根 程伟 姚军 孙国江 唐颖倩 |
| 作者单位： | 1. 北京航空航天大学固体力学研究所,北京,100083 2. 中国空间技术研究院,北京,100086 3. 航天清华卫星技术有限公司,北京,100088 |
| 摘 要： | 从结构模态参数的可识别性出发,结合时域频域参数识别技术和数字处理技术,开发出航天器动力学特征参数在轨辨识系统,系统包括硬件和软件。在此基础上设计了模拟在轨航天器的试验验证系统,以检验辨识算法和设计软件的可靠性以及航天器在轨辨识的实时性,该试验系统包括一个对称的双梁结构,利用对称结构的弱耦合可得到多个密集模态。试验和模拟数字考核结果表明系统辨识算法可靠,精度可以到达设计要求。 |
| 关 键 词： | 在轨航天器 环境激励 低频密集 动力学特性 参数辨识 |
| 收稿时间： | 2004-08-16 |
| 修稿时间： | 2004-08-162004-12-27 |
Investigation in Identification System for Dynamics Characteristics of Space Vehicles Using Perturbation Response |
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| Zhao Shougen,Cheng Wei,Yao Jun,Sun Guojiang,Tang Yingqian. Investigation in Identification System for Dynamics Characteristics of Space Vehicles Using Perturbation Response[J]. Journal of Vibration and Shock, 2005, 24(6): 65-67,84 | |
| Authors: | Zhao Shougen Cheng Wei Yao Jun Sun Guojiang Tang Yingqian |
| Abstract: | Based on the structure identifiability, some frequency-domain technologies using free dynamic response were discussed. Including the identification software and algorithm, an identification system which is used to identify dynamic characteristics of an on-orbit space vehicle has been developed. And also a test certification system was designed to verify the reliability of the system as well as the identification algorithm. The test certification system consists of a twin-beam whose two parts are weakly coupled through a flesible beam-like element and possesses several densely spaced low-frequency modes. The test results show that the system is reliable and the precision of the identification algorithm can meet design requirements. |
| Keywords: | on-orbit space vhicles low-frequency and modal dense dynamic characteristic parameter identification on-line identification |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |