In order to improve the motion reliability of space manipulator during its long time service on-orbit, multiple indexes which can reflect the motion performance and multiple factors (control variables of manipulator) which have influence on motion reliability are involved in establishing an optimization control model. Thus the problem of motion reliability improvement is expressed as an multiple-objective problem (MOP). In order to solve the MOP, dimension reduction strategy is proposed based on covariance matrix of motion reliability indexes. As a result, the MOP is turned into single objective problem. Then control variables are optimized based on null space of space manipulator, and the best weight matrix can be obtained when the objective is minimal. Simulations are carried out to verify the feasibility and effectiveness of the optimization control strategy. By decreasing the error introduction into the control variables, the motion reliability can be effectively improved.
목차
Abstract 1. Introduction 2. Multi-Index Representation of Space Manipulator Motion Reliability 3. Optimization Control Model Considering Multi-Index and Multi-Factor 3.1. Constraints of Optimization Control Model 3.2. Objective of Optimization Control Model 4. Calculation for Optimization Control Model of Motion Reliability 4.1. The Dimension Reduction Strategy of Multi-Objective Problem Based On Covariance Matrix 4.2. Objective Solution Based on Null Space Optimization 5. Simulations Verification 5.1. Research Object 5.2. Objective Function Minimization and Optimal Coefficient Calculation 5.3. Verification of Optimization Control Strategy in Improving Motion Reliability 6. Conclusion Acknowledgements References
키워드
Space manipulatorMotion reliabilityMulti-factor and multi-index
저자
Tong Li [ School of Automation, Beijing University of Posts and Telecommunications, Beijing 100876, China ]
Qingxuan Jia [ School of Automation, Beijing University of Posts and Telecommunications, Beijing 100876, China ]
Gang Chen [ School of Automation, Beijing University of Posts and Telecommunications, Beijing 100876, China ]
Hanxu Sun [ School of Automation, Beijing University of Posts and Telecommunications, Beijing 100876, China ]
보안공학연구지원센터(IJHIT) [Science & Engineering Research Support Center, Republic of Korea(IJHIT)]
설립연도
2006
분야
공학>컴퓨터학
소개
1. 보안공학에 대한 각종 조사 및 연구
2. 보안공학에 대한 응용기술 연구 및 발표
3. 보안공학에 관한 각종 학술 발표회 및 전시회 개최
4. 보안공학 기술의 상호 협조 및 정보교환
5. 보안공학에 관한 표준화 사업 및 규격의 제정
6. 보안공학에 관한 산학연 협동의 증진
7. 국제적 학술 교류 및 기술 협력
8. 보안공학에 관한 논문지 발간
9. 기타 본 회 목적 달성에 필요한 사업
간행물
간행물명
International Journal of Hybrid Information Technology
간기
격월간
pISSN
1738-9968
수록기간
2008~2016
십진분류
KDC 505DDC 605
이 권호 내 다른 논문 / International Journal of Hybrid Information Technology Vol.9 No.6