摘要
为研究上升器解锁装置在火箭排气作用下的解锁过程和对起飞稳定性的影响,分析了其结构及工作原理。结合锁紧带的材料性能,采用理论研究与数值计算相结合的方法,研究了上升器解锁装置的解锁机理。对上升器解锁时间进行了预估,并研究了不同解锁时间对上升器起飞稳定性的影响。结果表明:上升器解锁过程中,镁带不会燃烧;热、力共同作用是镁带断裂的主要因素;上升器解锁时间为0.3 s时对上升器起飞稳定性影响最小。
To study the unlocking processes of ascender unlock devices affected by rocket exhaust and their influences on take-off stability, the structure and working principle are analyzed. The unlocking mechanisms of ascender unlock devices are theoretically studied and numerically calculated considering the material performance of unlock ribbons. The unlock time of ascenders is estimated,and the influences of different unlock time on the take-off stability of ascenders are studied. The results show that magnesium ribbons don＇t burn in the unlock processes of ascenders, and the main factor of magnesium ribbon fracture is the thermal and mechanical interaction,and the minimal influence on the take-off stability of ascenders occurs when the unlock time is 0. 3 s.
出处
《南京理工大学学报》
EI
CAS
CSCD
北大核心
2014年第3期375-379,384,共6页
Journal of Nanjing University of Science and Technology
关键词
航天工程
星球探测
上升器
解锁装置
起飞稳定性
火箭排气
锁紧带
材料
镁带
解锁时间
aerospace engineering
planetary exploration
ascenders
unlock devices
take-off stability
rocket exhaust
unlock ribbons
materials
magnesium ribbon
unlock time
作者简介
胡建国（1986-），男，博士生，主要研究方向：航空航天科学与技术，E-mail：super-jianguo@163．com；
通讯作者：马大为（1953-），男，教授，博士生导师，主要研究方向：兵器系统控制与仿真技术，E-mail：madawei@njust．edu．cn。
