论文标题
冷气油推进器的设计和分析以除去PSLV碎片
Design and Analysis of Cold Gas Thruster to De-Orbit the PSLV Debris
论文作者
论文摘要
今天的空间世界主要关注的是太空碎片的不受控制的生长及其与航天器发生碰撞的可能性，尤其是在低地轨道（LEO）区域。本文旨在设计一种优化的微螺旋液系统，即冷气油推进器，以将PSLV碎片从668公里到250 km的高度驱动轨道。推进系统主要由储罐，管道，控制阀和收敛性发射喷嘴组成。本文根据连续的迭代过程给出了每个组件设计的想法，直到满足设计推力要求为止。所有组件均在CATIA V5中设计，并且在每个组件的ANSYS工具中进行了结构分析，我们的气缸箱可以承受其壁上产生的高箍应力。通过对CD喷嘴的K- $ε$湍流模型进行流动分析，该模型提供了从较高轨道到较低轨道的轨道PSLV所需的推力，此后，空气阻力足以将其带回地球大气层并燃烧它。 Hohmannś轨道转移方法已用于除去PSLV空间碎片，并已通过STK工具进行了模拟。结果表明，我们优化的设计推进器会产生足够的推力，以将PSLV碎片脱离到非常低的轨道。
Todayś world of spaceś primary concern is the uncontrolled growth of space debris and its probability of collision with spacecraft, particularly in the low earth orbit (LEO) regions. This paper is aimed to design an optimized micro-propulsion system, Cold Gas Thruster, to de-orbit the PSLV debris from 668km to 250 km height after capturing process. The propulsion system mainly consists of a storage tank, pipes, control valves, and a convergent-divergent nozzle. The paper gives an idea of the design of each component based on a continuous iterative process until the design thrust requirements are met. All the components are designed in the CATIA V5, and the structural analysis is done in the ANSYS tool for each component where our cylinder tank can withstand the high hoop stress generated on its wall of it. And flow analysis is done by using the K-$ε$ turbulence model for the CD nozzle, which provides the required thrust to de-orbit PSLV from a higher orbit to a lower orbit, after which the air drag will be enough to bring back to earthś atmosphere and burn it. Hohmannś orbit transfer method has been used to de-orbit the PSLV space debris, and it has been simulated by STK tools. And the result shows that our optimized designed thruster generates enough thrust to de-orbit the PSLV debris to a very low orbit.
