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Acceleration Level Control of Redundant Manipulators with Physical Constraints Compliance and Disturbance Rejection under Complex Environment
Joint Authors
He, Zhenzhen
Ye, Guoliang
Liang, Jinglun
Rong, Yisheng
Li, Xiaoxiao
Guo, Jianwen
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-11-09
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
Investigation of joint torque constraint compliance is of significance for robot manipulators especially working in complex environments.
A lot of which is attributed to that, on the one hand, it is beneficial to the improvement of both safety and reliability of the mission execution.
On the other hand, the energy consumption required by the robot to complete the desired mission can be reduced.
Most existing schemes do not take the joint torque limit and other inherent physical structure limits in a manipulator into account at the same time.
In addition, many unavoidable uncertainties such as the external environmental disturbance and/or electromagnetism interferences in the circuit system may influence the accuracy and effectiveness of the task execution for a robot.
In this study, we cast light on the acceleration level control of redundant robot manipulators considering both four physical constraint limits and interference rejection.
A robust unified quadratic-programming-based hybrid control scheme is proposed, where the joint torque constraints are converted as two inequality constraints based on the robots’ dynamics equation.
A recurrent-neural-network-based controller is designed for solving the control variable.
Numerical experiments performing in PUMA 560 manipulator and planer manipulator illustrate that a rational torque distribution is obtained among the joints and the considered physical structural vectors are all restricted to the respective constraint range.
In addition, even disturbed by the noise, the manipulator still successfully tracks the desired trajectory under the proposed control scheme.
American Psychological Association (APA)
Liang, Jinglun& Rong, Yisheng& Ye, Guoliang& Li, Xiaoxiao& Guo, Jianwen& He, Zhenzhen. 2020. Acceleration Level Control of Redundant Manipulators with Physical Constraints Compliance and Disturbance Rejection under Complex Environment. Complexity،Vol. 2020, no. 2020, pp.1-14.
https://search.emarefa.net/detail/BIM-1144858
Modern Language Association (MLA)
Liang, Jinglun…[et al.]. Acceleration Level Control of Redundant Manipulators with Physical Constraints Compliance and Disturbance Rejection under Complex Environment. Complexity No. 2020 (2020), pp.1-14.
https://search.emarefa.net/detail/BIM-1144858
American Medical Association (AMA)
Liang, Jinglun& Rong, Yisheng& Ye, Guoliang& Li, Xiaoxiao& Guo, Jianwen& He, Zhenzhen. Acceleration Level Control of Redundant Manipulators with Physical Constraints Compliance and Disturbance Rejection under Complex Environment. Complexity. 2020. Vol. 2020, no. 2020, pp.1-14.
https://search.emarefa.net/detail/BIM-1144858
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1144858