摘要
结合某种返回式航天器水域回收用浮囊构型及高强度的性能要求,为了保证航天器完成飞行任务返回时着水后总体结构的完整性,文章重点研究一项水域回收用航天器浮囊制造技术。该技术以FL-131聚氨酯胶布为材料,制造工艺采用高频板式高温熔接。经25mm宽样条试验测试,材料样条抗拉强度达到2.56MPa,材料强度参数满足浮囊制造要求;运用中心辐射式布置裁剪线设计裁片保证材料成形精度,整囊充压到8kPa,整体无褶皱,囊体表面各向尺寸精度偏差不大于1mm(每500mm),浮囊安全充压指标达到40kPa,具有良好的气密性和耐压性。在拟真工况下进行的地面出舱试验显示,浮囊可顺利实现充气、展开、出舱,无破损与漏气,验证了该种技术用于返回式航天器水域回收用浮囊制造的可行性。
Combined with the requirements of the configuration and high strength performance of a certain returnable spacecraft buoyant for recovery in water,a manufacturing technology of spacecraft buoyant is focused on in this paper.Fl-131 polyurethane tape is used as the main material of the buoyant,and its minimum longitudinal and latitude tensile strength is 2.55MPa.The manufacturing engineering of high frequency plate high temperature welding is used to make multiple groups of flat splines(25mm wide)structure splines.The splicing form has tensile strength of 2.56MPa and can be used as the main splicing form in the manufacturing of the whole floating tank structure.By hub-and-spoke arrangement work piece cut out of the line design,charging-8kPa,after forming the overall no fold,the overall effect is good,the bladder charging-40kPa,the surface has not been damaged,and implement a slight loss of buoyancy,has good air tightness and pressure resistance.In the simulated conditions on the ground out of the capsule test.The results shows no damage and air leakage on the bag surface and the inflatable deployment process of floating bag is smooth and successful.The feasibility of this technology in the manufacture of buoyancy capsule for water recovery of the returnable spacecraft is verified.
作者
王垒
甄铎
廖航
WANG Lei;ZHEN Duo;LIAO Hang(Beijing Institute of Space Mechanics&Electricity,Beijing 100094,China;Laboratory of Aerospace Entry,Descent and Landing Technology,CASC,Beijing 100094,China;Tianjin Institute of Aerospace Mechanical and Electrical Equipment,Tianjin 300450,China)
出处
《航天返回与遥感》
CSCD
北大核心
2022年第5期59-69,共11页
Spacecraft Recovery & Remote Sensing
关键词
水域回收
浮囊制造技术
返回式航天器
recovery in water
molding technology of floating bag
recovery spacecraft
