核热火箭发动机反应堆结构特性分析
Analysis on structural characteristics of nuclear thermal rocket reactor
赵润喆 1吕征 1解家春 1霍红磊1
作者信息
- 1. 中国原子能科学研究院 反应堆工程技术研究所,北京 102413
- 折叠
摘要
核热火箭具有推力大、比冲高的特点,在长距离、高载荷的空间任务中相较常规推进方式具有巨大优势.与地面常规反应堆相比,核热火箭反应堆尺寸、质量要求严格,同时运行温度高,热应力大,还需承受发射时的恶劣力学环境,因而需要合理稳固的结构设计.基于此需求开展调研总结,主要整理了美国NERVA-I型、NERVA-II型和CERMET燃料核热火箭反应堆的结构设计,梳理核热火箭反应堆典型结构设计,总结国外设计经验,为核热火箭方案迭代与实现提供参考.
Abstract
Nuclear thermal rockets have the advantages of large thrust and high specific impulse,offering significant advantages over conventional propulsion methods in long-distance and high-payload space missions.Compared with conventional ground-based reactors,nuclear thermal rocket reactors have strict requirements for size and weight,as well as high operating temperatures,significant thermal stress,and the need to withstand the harsh mechanical environment during launch.Therefore,a reasonable and stable structural design is necessary.Based on this requirement,a survey and summary of the structural design of the nuclear thermal rocket reactor is conducted in this acticle,mainly sorting out the structural design of NERVA-I,NERVA-II and CERMET fuel reactors in the United States.And then the foreign design experience is summarized and it provides reference for the iteration and implementation of nuclear thermal rocket program.
关键词
核热火箭/反应堆/结构Key words
nuclear rocket/reactor/structure引用本文复制引用
基金项目
核技术研发项目(HNKF20230436)
民用航天技术预研项目(D010102)
原子能院院长基金(YZ222405000802)
出版年
2024
国家科技期刊平台
NSTL
万方数据