离子发动机栅极组件的热应力分析  

ANALYSIS OF THERMAL STRESS OF ION THRUSTER'S GRID

作　　者：郑茂繁[1] 

机构地区：[1]兰州物理研究所,甘肃兰州730000

出　　处：《真空与低温》2006年第1期33-36,共4页Vacuum and Cryogenics

摘　　要：离子发动机栅极组件的热应力、热形变分析是栅极组件工程化设计的重要内容之一。建立了栅极组件热应力分析模型和计算方法。针对20cm氙离子发动机钛栅极组件的结构,具体进行分析计算。结果表明,钛栅极组件的热应力满足工程应用要求。Grid is one of the important components for ion thruster. When the thruster operating, deformation will be taken place and even be destroyed with asymmetric distribution of temperature. It is necessary to analyze and calculate its thermal stress for selecting optimal structure and materials. A numerical model was established for analysis the grid thermal stress. The Ti grid thermal stress of 20 cm Xenon ion thruster was calculated. It was confirmed that Ti grid structure and parameter were fit for condition of thermal stress.

关 键 词：离子发动机 栅极组件 热应力 分析计算 

分 类 号：V439.1[航空宇航科学与技术—航空宇航推进理论与工程]