新型ARMOR热防护系统

New-typed ARMOR thermal protection systems

热防护系统是保证航天运载器安全、快捷、经济飞行的关键技术之一。在经历了C/C与陶瓷基复合材料等热防护结构后,一种新型的热防护系统应运而生-ARMOR(Adaptable,Robust,Metallic,Operable,Reusable)热防护系统(TPS)。ARMORTPS是一种可适应的、坚固的、金属性的、可操作的、可重复使用的新型热防护系统。它具有易于安装、使用寿命(耐久能力)长、材料的兼容性好、维修时间短等许多特点,是RLV的重要的候选热防护系统之一。本文介绍了热防护系统的发展现状和要求。着重介绍了ARMORTPS的基本结构,连接方式和密封方法等特点。目前ARMORTPS外面板采用的材料为inconel617等材料,未来热防护系统外面板的候选材料为γ～TiAl和微叠层等材料。最后总结了ARMORTPS的优点。

Thermal protection system is one of the key technology of reusable launch vehicle (RLV).After C/C and ceramic-matrix composite used in space orbiter,one new-typed thermal protection systems(TPS)-ARMOR TPS is coming forth.ARMOR TPS is means adaptable,robust,metallic,operable,reusable TPS.The ARMOR TPS has many advantages,for example:fixing easily,longer life,good properties,short time of maintenance and service.The ARMOR TPS is one of important candidate structure of RLV and the situation and trend of thermal protection systems are summarized.and the basic structure and the seal are introduced.Inconel617 is the best material of facesheet at present.γ - TiAl and microlaminate materials are the candidate materials in the future.At last,the advantages of ARMOR TPS are introduced.