CAJ | 학술논문

传统的金星进入飞行器存在弹道系数高、热流密度高、过载大等缺点，对热防护系统和设备的要求比较严苛。针对金星探测的任务需求，美国提出了一种基于机械展开式结构的金星进入飞行器，该飞行器发射时处于折叠状态，进入时展开形成较大的气动面，可以显著地降低弹道系数、热流密度、过载等。文章介绍了该飞行器的结构组成和展开过程，对机械展开式进入飞行器的研究现状进行了介绍，重点对比了机械展开式进入飞行器与传统形式的不同，通过对构型、工作流程、效果的对比，可以看出机械展开式进入飞行器在金星探测上具有很大的优越性，最后对其优势进行了总结，并提出了未来需要研究的问题。
전통적금성진입비행기존재탄도계수고、열류밀도고、과재대등결점，대열방호계통화설비적요구비교엄가。침대금성탐측적임무수구，미국제출료일충기우궤계전개식결구적금성진입비행기，해비행기발사시처우절첩상태，진입시전개형성교대적기동면，가이현저지강저탄도계수、열류밀도、과재등。문장개소료해비행기적결구조성화전개과정，대궤계전개식진입비행기적연구현상진행료개소，중점대비료궤계전개식진입비행기여전통형식적불동，통과대구형、공작류정、효과적대비，가이간출궤계전개식진입비행기재금성탐측상구유흔대적우월성，최후대기우세진행료총결，병제출료미래수요연구적문제。
AbstractThe traditional Venus atmospheric entry vehicles are subject to very high ballistic coefficient, heat flux and extreme decelerations, with require high standard for thermal protection system (TPS) and equipment. For Venus detection, a Mechanically-deployed entry decelerator is proposed by NASA, which keeps a stowed configuration during launch and deployed before entry. Deployable aeroshells achieve lower ballistic coefficients, heat flux and lower decelerations. The present paper describes the structures and mechanisms design concepts of the vehicle; and introduces the present research situation and key technologies of it. This vehicle has obvious advantages than those of the traditional one and is quite different from the later. Finally, some problems need to be studied and relevant suggestions are put forward in the paper.