基于定力撕裂带的绳网网型控制研究

针对柔性绳网空间碎片主动清除技术中的绳网回弹问题，提出一种基于“定力撕裂带”的网型控制方法，在绳网边线绳上加装定力撕裂带以抑制绳网的回弹运动。将绳网离散化后，建立描述绳网运动的集中质量模型，然后结合定力撕裂带的力学特性，运用虚功率原理推导了系统动力学方程。通过仿真计算，本文对比分析了加装和不加装定力撕裂带两种模式，以及不同撕裂力强度的绳网运动特性。仿真结果表明，该控制方法能够有效地提升绳网的有效工作时间和有效工作距离，可应用于未来的空间柔性捕获任务。

Research on Space Net Control Based on Fixed Force Tear Rope

 In order to suppress the rebound movement of the space net during the working process, a new control method with fixed-force tear ropes is proposed, which adds several tear ropes on the outlines of the net. After dispersing the space net, the lumped mass model of each rope is developed. And by using the mechanical properties of the tear rope, the system dynamics equation is derived based on the principle of virtual work. Then the simulations are investigated from the point of view of evaluating the effect of the fixed-force tear rope. From the comparison of the simulations, it is found that the fixed-force tear ropes have significant influence on restraining the rebound movement of the space net. And this new approach can be used in the future flexible space capture missions.