Research on Space Docking Hil Simulation System Based on Stewart 6-Dof Motion System

Abstract

This paper presents the research on the experimental testing system of the space docking HIL (Hardware-In-the-Loop) simulation, which is based on a Stewart 6-DOF (Degree-Of-Freedom) motion system. First of all, spacecraft dynamics is analyzed. Because of the under-damping characteristic, stability of the HIL simulation system is analyzed, and control strategy of the 6-DOE-motion system, which is based on the phase compensation, is put forward to improve system stability. The influence created by the frequency characteristics of the 6-DOE-motion system on the accuracy and stability of the HIL simulation system is also analyzed. The characteristics of the spacecraft dynamics and the accuracy and feasibility of the HIL simulation system are verified with a non-damp collision device.

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Study on Space Copper-Based Powder Metallurgy Friction Material and its Tribological Properties

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