轻质箭体结构优化设计

Optimization Design of the Rocket Structure

运载火箭对箭体结构系统的轻质化设计提出了更高要求,针对此问题,进行了一系列机理、仿真、计算和试验研究,建立了基于数字仿真技术的多部段联合传力优化设计方法和试验方法,提出了主捆绑及发动机集中力"双扩散"结构、超大气瓶变形自适应支撑结构、捆绑起吊多功能一体化结构、半硬壳结构超低超薄中间框结构、贮箱等边三角形网格加筋结构、轻质低温贮箱绝热结构等新型轻质设计方案,并组织实施了多部段联合静力试验,为火箭成功飞行做出了重要贡献。

The carrier rocket puts forward higher requirements for the lightweight design of the rocket body structure system.Aiming at this problem,a series of mechanism,simulation,calculation and experimental research are carried out.The optimal design method and experimental method of multi-segment joint force transfer based on digital simulation technology are established.The main binding structure,the adaptive structure of the super large gas cylinder,the multi-functional binding lifting integration structure,the ultra-thin frame structure,the equilateral triangular mesh reinforced structure and the heat insulation structure of low temperature storage tank and other new lightweight structure are designed.The joint static test of several sections is organized and implemented,which make an important contribution to the successful flight of the carrier rocket.