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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 >LEO TECHNOGENEOUS CONTAMINANTS EVOLUTION MODELING WITH ACCOUNT OF SATELLITES COLLISIONS
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LEO TECHNOGENEOUS CONTAMINANTS EVOLUTION MODELING WITH ACCOUNT OF SATELLITES COLLISIONS

机译：考虑卫星碰撞的LEO技术污染物演化模型

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1. The technique of space debris evolution modeling based on the continua approach is developed, which takes into account the consequences of collisions of objects of different sizes. The evolution model includes the following major components: the fragmentation model for high-speed impacts, the model evaluating the average collision consequences, the calculation of the matrix of SO mutual collisions probabilities and the numerical algorithm for solving differential equations in partial derivatives. 2. The estimations of the mean contribution of SO collisions into catalogued SD environment are made. The objects sizing larger than 0.1 cm at altitudes up to 2000 km are considered. It is found that the maximal contribution of collisions is reached in the altitude range of 800-1000 km with account of all mutual collisions and is equal now to 33% of the general contamination level of this high-altitude layer by particles sizing 0.25-0.5 sm. 3. The topical directions of further research are aimed at decreasing the lower boundary of the considered particles sizes by 1 - 2 orders of magnitude and accounting of the collisions of technogeneous objects with micrometeorites.
机译：1.开发了一种基于连续性方法的空间碎片演化建模技术，该技术考虑了不同大小物体碰撞的后果。演化模型包括以下主要组成部分：高速碰撞的碎片模型，评估平均碰撞后果的模型，SO相互碰撞概率矩阵的计算以及求解偏导数微分方程的数值算法。 2.估算了SO碰撞对分类SD环境的平均贡献。考虑在2000 km以下的高度上尺寸大于0.1 cm的对象。发现在800-1000 km的高度范围内，由于所有相互碰撞，达到了最大的碰撞贡献，现在，通过将粒子尺寸设置为0.25-0.5，等于该高海拔层总污染水平的33％短信3.进一步研究的主题方向旨在将考虑的颗粒尺寸的下边界减小1-2个数量级，并解决技术对象与微陨石的碰撞问题。

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