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首页> 外文会议>Symposium of the International Academy of Astronautics, Oct 2-6, 2000, Rio de Janeiro, Brazil >CALCULATION OF COLLISION PROBABILITIES FOR SPACE TETHERS
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CALCULATION OF COLLISION PROBABILITIES FOR SPACE TETHERS

机译：空间句法的碰撞概率计算

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摘要

Space tethers represent a new technology to increase the capabilities and versatility of Earth-orbiting spacecraft. However, tethers also present a new type of collision hazard for spacecraft. In addition, space tethers themselves are especially susceptible to severing by orbital debris collisions. Traditional mathematical models that are used to compute collision rates between orbiting objects are based on the assumption that the spacecraft themselves are much smaller in size than the scale of their orbits (i.e., the spacecraft are treated as mathematical points). This assumption begins to break down for tethers, which can be many kilometers in length. In this paper, a mathematical procedure is introduced that allows for collision rate calculations for extended structures such as tethers. These equations are then applied to several current and planned tether missions to determine their mean sever lifetime and their risk of collision with other orbiting bodies.
机译：太空绳代表了一种新技术，可以提高绕地球轨道飞行器的能力和多功能性。但是，系绳还对航天器造成了新型的碰撞危险。此外，太空绳本身特别容易因轨道碎片碰撞而被切断。用于计算轨道物体之间的碰撞率的传统数学模型是基于这样的假设，即航天器本身的尺寸远小于其轨道的规模（即，航天器被视为数学点）。这个假设开始被束缚，可能长达数公里。在本文中，介绍了一种数学过程，该过程允许对诸如绳索之类的扩展结构进行碰撞率计算。然后将这些方程式应用于当前和计划进行的几次系绳飞行任务，以确定它们的平均服务器寿命以及它们与其他轨道物体碰撞的风险。

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