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The space manipulators are widely used in space exploration tasks and the technology develops quickly as well. The integrative space joint design is one of the key technologies of space manipulator. It can realize small volume, light weight, high performance by designing the motor, control module, driver module, measure module and thermal control module as a whole. This paper shows a kind of integrative...
Because of great shock in the process of launching of rocket, structure deformation during work, displacement of sensors and other factors, the kinematic parameters of space manipulator will deviate from the parameters calibrated on the ground, which will decrease the positioning accuracy of space manipulator. Therefore, the space manipulator should be calibrated to ensure its positioning accuracy...
A light space manipulator is essential for space activities, the stiffness of such a light manipulator is a crucial problem. In this paper, a method of stiffness optimization is presented to improve the stiffness of a light space manipulator. First, the stiffness model is established, then, an optimization algorithm based on mass allocation is proposed. Finally, the effectiveness of our proposed method...
To build a space station, a manipulator is indispensable, especially a light space manipulator with high stiffness is necessary for spacecrafts. In this paper, a distributed control system is presented to such a manipulator for the purpose of reliability, compactness and light weight. A main controller is located inside the spacecraft and six joint controllers are placed inside the joints. All the...
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