| 空间对接中差动式缓冲阻尼机构的建模研究 |
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| 引用本文： | 杨芳,曲广吉.空间对接中差动式缓冲阻尼机构的建模研究[J].中国空间科学技术,1999,19(3):1-8. |
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| 作者姓名： | 杨芳 曲广吉 |
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| 作者单位： | 北京空间飞行器总体设计部 |
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| 摘 要： | 以美俄在ＡＳＴＰ计划中“联盟号”飞船的对接机构为背景，首先研究了差动式机电缓冲阻尼系统的结构组成和运动原理，并且建立了由捕获环，传动丝杠和固定机架组成的六自由度并联多环机构的运动简化模型。
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| 关 键 词： | 航天器对接 缓冲器 阻尼机构 建模 |
A Study on Kinematics and Dynamics Modeling of Differential Damping Mechanism in Space Docking |
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| Abstract: | Concerning the peripheral docking system of Russian Soyuz spacecraft in ASTP,the paper first studies the structure and basic motion relations of the differential damping mechanism and builds a simplified motion model.Then,by using Kinematics Influence Coefficients(KIC) method,the first and second order of Kinematics Influence Coefficients matrix which can describe each part motion are given.On the basis of kinematics modeling,it discusses the kinetic energy of transmission parts in the differential mechanism,the potential energy of springs connecting with screw rods or gear differential units,and the Rayleigh dissipative function of electromagnetical dampers and friction damper while the dissipative force is considered as being linear with velocity.By means of the Second Lagrange Equation,the mechanism movement differential equations are given and gets the mechanism dynamics modeling is got.Finally the expression of system stiffness coefficient and system damping coefficient in arbitrary docking mode are reached. |
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| Keywords: | Spacecraft docking Snubber Dynamics Mathematical model |
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