空间站对接碰撞能量计算的简化分析

Simplified Analysis for Space Station Docking Contact Energy

空间站建造和运营过程中对接的新变化是大吨位和大偏心,必须计算各种构型对接碰撞需要缓冲的能量,周边式对接机构碰撞情况复杂,能量计算困难。针对任意两航天器碰撞式对接,建立三维等效模型计算碰撞能量,根据空间站构型将三维模型简化成二维模型,避开求解常微分方程,直观、方便、快速地计算对接碰撞产生的能量,并对空间站"I"、"L"以及"T"字构型时的对接碰撞能量进行分析,用于对接机构的性能设计。

During the construction and operation of the space station, Space Station Docking features with huge mass and eccentricity. It is essential to calculate the energy needed for cushioning the docking contact. For an androgynous peripheral docking mechanism, the energy calculation is especially difficult due to the complex impact case. A 3D equivalent model for calculating docking contact energy is built, and then the 3D model is simplified to 2D planer model according to the space station construction. By saving the trouble of solving ODEs, this method is more intuitional, convenient and rapid in calculation. Various contact energies are calculated in terms of “I”,＂L＂ and ＂T＂ type configuration, which can be used in the performance design of docking mechanism.