TL;DR: In this article, a fixed length deployed tether applies stabilizing restoring forces to the payload during retrieval phase, and in effect, significantly reduces both the in-plane equilibrium hangoff angles and the build-up of inplane and out-of-plane swinging.
Abstract: Kane's (1984) Crawler System for satellite retrieval is enhanced by incorporating out-of-plane as well as in-plane motion. It is shown that a fixed length deployed tether applies stabilizing restoring forces to the payload during retrieval phase, and in effect, significantly reduces both the in-plane equilibrium hangoff angles and the build-up of in-plane and out-of-plane swinging. These Crawler System characteristics suggest that a simpler control system can be utilized and that significantly faster deployment and retrieval scenarios are possible without compromising safety.
TL;DR: In this paper, a robust decentralized control for manipulation robots with variable parameters is considered, where the variations of payload parameters cause variation of the moments of inertia around the axes of the robot joints.
TL;DR: An approach to the synthesis of decentralized self-adjusting controller for manipulation robots is given in this article, which is intended for serving trajectories defined in the space of manipulator generalized coordinates.