Orbital debris in Earth orbit poses a threat to the future of spaceflight. To combat this issue, this paper proposes a novel robotic mechanism for non-cooperative capture and active servicing missions on non-cooperative targets; specifically, a tendon-driven manipulator is assumed for this work. The capture mechanism is a prototype symmetric two-link gripper driven by an open-ended cable-sheath transmission mechanism. Because the cable-sheath transmission mechanism is a nonlinear time-varying hysteretic system, two separate adaptive control strategies were compared against the uncontrolled and proportional-integral-derivative controlled performance of the closed-loop gripper. Specifically, an indirect control method and a direct controller were employed. Experimental results demonstrate that the adaptive controllers show better tracking performance of a joint trajectory over the proportional-integral-derivative controlled and uncontrolled cases, whereas the controller performs best under dynamic conditions, and the indirect controller performs best in steady state.
Adaptive Control of a Tendon-Driven Manipulator for Capturing Non-Cooperative Space Targets
Journal of Spacecraft and Rockets ; 59 , 1 ; 111-128
2021-07-16
18 pages
Article (Journal)
Electronic Resource
English
Adaptive control of dual-arm space manipulator capturing object
Online Contents | 2013
|Adaptive control of dual-arm space manipulator capturing object
SAGE Publications | 2013
|Servo control method for capturing non-cooperative spray pipe through space manipulator
European Patent Office | 2023
|