Investigation into debris cloud characterizations for oblique hypervelocity impact of projectiles on bumper  

作　　者：张伟 管公顺 庞宝君 李强 张永强 

机构地区：[1]School of Astronautics, Harbin Institute of Technology, Harbin 150001,China

出　　处：《Journal of Harbin Institute of Technology(New Series)》2004年第4期372-376,共5页哈尔滨工业大学学报（英文版）

基　　金：SponsoredbytheNationalSpaceDebrisSpecialDevelopmentProjectofChina.

摘　　要：All long-duration spacecraft in low-earth-orbit are subject to high velocity impacts by meteoroids and space debris. Such impacts are expected to occur at non-normal incidence angles and can cause severe damage to the spacecraft and its external flight-critical systems and possibly lead to catastrophic failure of the spacecraft. In order to ensure crew safety and proper function of internal and external spacecraft systems, the characteristics of a debris cloud generated by such impacts must be known. An analytical model is therefore developed for the characterization of the penetration and ricochet debris clouds created by the hypervelocity impact of an aluminum spherical projectile on an aluminum plate. This model employs normal and oblique shock wave theory to characterize the penetration and ricochet processes. The prediction results of center-of-mass trajectory and leading velocity of penetration and ricochet debris clouds are obtained and compared with numerical and experimental results in figures.All long-duration spacecraft in low-earth-orbit are subject to high velocity impacts by meteoroids and space debris. Such impacts are expected to occur at non-normal incidence angles and can cause severe damage to the spacecraft and its external flight-critical systems and possibly lead to catastrophic failure of the spacecraft. In order to ensure crew safety and proper function of internal and external spacecraft systems, the characteristics of a debris cloud generated by such impacts must be known. An analytical model is therefore developed for the characterization of the penetration and ricochet debris clouds created by the hypervelocity impact of an aluminum spherical projectile on an aluminum plate. This model employs normal and oblique shock wave theory to characterize the penetration and ricochet processes. The prediction results of center-of-mass trajectory and leading velocity of penetration and ricochet debris clouds are obtained and compared with numerical and experimental results in figures.

关 键 词：METEOROIDS space debris hypervelocity velocity impact debris clouds 

分 类 号：V423.5[航空宇航科学与技术—飞行器设计]