针对空间飞网捕获目标时的碰撞问题,基于向量式有限元离散方法,采用Kelvin-Voigt绳段模型,引入附加约束方法,对飞网捕获碰撞过程进行了动力学建模和仿真,分析了飞网在捕获碰撞阶段的位形变化、能量变化、碰撞力和绳段张力变化.结果表明,空间飞网的位形、能量和对角线绳段内力在碰撞过程中都会发生显著变化.可为空间飞网系统的设计提供一定的借鉴.%Aiming at the contact problem in target capturing by space net , the Vector Form Intrinsic Finite Element Method, the"Kelvin-Voigt" viscoelastic constitution relation and the appending con-straint method were adopted to establish the contact dynamic model of the space net. The simulations were conducted to analyze the net shape, the energy variation, the impact force and the tether ten-sion during the contacted process. The results showed that the net shape, the energy and the diago-nal tether tension varied significantly during the impact contact process which may offer some refer-ence for the design of the space net system.
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