飞船舱段应急分离过程的动力学分析和计算

Analysis and Calculation of Separation Process of Spacecraft Modules

在上升段大气层外当出现紧急情况时航天飞船的逃逸及随后的舱段应急分离过程是复杂的多个舱段的相对运动过程。针对这个过程,建立了舱段的相对轨迹运动和相对姿态运动的数学模型,包括动力学方程、运动学方程和几何关系方程,定义了对象组合体,强调了主体和客体的关系;并且按工程实际情况划分了飞行阶段。在数学模型以及对象定义和阶段划分的基础上建立了一个大规模的软件来进行全面的分析和仿真,并给出了典型工况下的结果示例。

The process of escape and sucedent emergency separation of spacecraft modules when spacecraft rising besides aerosphere is a complex process of multi-body relative motion. The mathematic models of relative trajectory motion and attitude motion for that process, including dynamic, kinematic and geometric equations, are constructed. The combinatorial objects are defined, the relation between subject and object is emphasized, and the flight phase according to practical situation is partitioned. On the base of mathematic model, body definition and phase partition, a large-scale software to analyze and simulate is established. Some result samples of typical condition are given.