Abstract

An experimental system is constructed to evaluate performance and feasibility of modeling, identification and control methods for space robots. The experimental system achieves a two-dimensional weightless condition by means of a horizontal table and air-pads. As a preliminary experimental study, two identification methods for space robots are discussed. The first identification method is a conventional method for manipulators on an inertially fixed base. The second identification method can determine dynamic parameters of space robots under the condition that the satellite base is free to both translate and rotate. This method is based upon the conservation laws of linear and angular momentum of a space robot. Finally implementation schemes of resolved acceleration control are considered for the experimental system. >

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