2自由度モデルによる宇宙機ドッキング機構の剛性および減衰の配分設計

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  • Design of Stiffness and Damping Allocation for Spacecraft Docking Mechanism through 2-DOFs Model

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<p>Docking of spacecraft is an essential technology for various space missions, including building large space structures and resupplying space stations. The docking mechanism has three critical functions: guiding, latching, and damping. Functions after docking such as permanent fixation are outside of this paper’s scope. Three functions mentioned above determine the required minimum and allowable maximum docking speed. This study proposes a new approach to design the stiffness and damping allocation in the docking mechanisms using a 2-DOFs spring-mass model focusing on the energy transfer. To demonstrate the design, we conducted experiments to compare the results with the analytical ones from the viewpoints of the lower limit docking speed, maximum impact force, and maximum displacement of the damper. The experimental results showed that our approach is useful for designing docking mechanisms.</p>

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