Design of active vibration isolation controller for pointing stabilization mechanism based on feedforward–feedback hybrid control

Author:

Xu Anpeng12ORCID,Xu Zhenbang1ORCID,Zhang Hui12,He Shuai1ORCID,Wang Lintao1

Affiliation:

1. Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, China

2. University of Chinese Academy of Sciences, Beijing, China

Abstract

The use of space technology and small space loads is increasingly common. To address this, a mechanism for isolation vibration in small optical load has been proposed. The mechanism includes a coarse and fine stage parallel pointing platform (CFPP). This paper investigates an active vibration isolation scheme for the novel pointing stabilization mechanism. The kinetic energy minimization principle is derived from the analysis of its working mechanism and dynamic feedforward characteristics. This principle is confirmed by the feedforward of the indeterminate degrees of freedom of the under-constrained mechanism. A hybrid control scheme of feedback and feedforward is developed based on the H algorithm and the optimal feedforward control algorithm. Simulation and experimentation have proven that the vibration isolation efficiency of more than 20 dB can be achieved in all three axis rotation directions. This meets the precision pointing requirements of small optical load effectively.

Funder

National Natural Science Foundation of China

Publisher

SAGE Publications

Reference28 articles.

1. Design and Tuning of Reduced Order H-Infinity Feedforward Compensators for Active Vibration Control

2. Satellite ultraquiet isolation technology experiment (SUITE);Anderson EH,2000

3. Anderson EH, Leo DJ, Holcomb MD (1996) Ultraquiet platform for active vibration isolation In: Smart Structures and Materials 1996: Smart Structures and Integrated Systems, 25 March, Big Sky, MT, USA, pp. 436–451, SPIE, Vol. 2717.

4. Very-Small-Satellite Design for Distributed Space Missions

5. Self-tuning MIMO disturbance feedforward control for active hard-mounted vibration isolators

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3