【作者】 苟海涛； 王应德； 闫军； 韩增尧； 黄洁；

【Author】 GOU Haitao~1,WANG Yingde~1,YAN Jun~2,HAN Zengyao~2,HUANG Jie~3 1(National Key Laboratory of Science and Technology on Advanced Ceramic Fibers and Composites,National University of Defense Technology,Changsha,410073) 2(China Academy of Space Technology,Beijing,100094) 3(Hypervelocity Aerodynamics Institute,China Aerodynamics Research and Development Center,Mianyang,622663)

【机构】 国防科技大学新型陶瓷纤维及其复合材料重点实验室； 中国空间技术研究院总体部； 中国空气动力研究与发展中心超高速空气动力研究所；

【摘要】 目前,以先进陶瓷纤维与高强有机纤维叠成织物作为填充层制备的填充Whipple防护结构是航天器防护空间碎片撞击的最有效结构之一。为了打破国外封锁,本文将国产陶瓷纤维S替代国外使用的Nextel纤维制备一种高性能复合织物填充防护结构——S/K填充Whipple防护结构并进行了超高速撞击实验研究,与三层铝防护结构、Nextel/Kevlar填充Whipple防护结构和玄武岩纤维/Kevlar填充Whipple防护结构进行了对比,结果表明:S/K填充Whipple防护结构超高速撞击极限高出三层铝防护结构近一倍,并稍高于国外使用的Nextel/Kevlar填充Whipple防护结构和国内玄武岩纤维/Kevlar填充Whipple防护结构。文章进一步通过防护机理分析表明,陶瓷纤维S通过拦截二次碎片、吸收二次碎片能量和分散二次碎片能量的方式来达到提高结构防护性能的作用。更多还原

【Abstract】 Advanced ceramic fibers together with organic fibers are used as stuffed layers in Stuffed Whipple Shield(SW for short),which is considered as one of the most effective structures on M/OD protection Experimental study of hypervelocity impacts are carried out on Domestic ceramic fiber S/K SW,Nextel/Kevlar SW,Basalt fiber/Kevlar SW and 3-Wall All-A1 Shield.It turn out that the hypervelocity impact limit of S/K SW is greatly larger than 3-Wall All-A1 Shield,and a few larger than Nextel/Kevlar SW and Basalt fiber/Kevlar SW.S fiber is turned out to improve its M/OD protect performance through stopping secondary debris,absorbing and separating the energy of secondary debris in further experiment.更多还原