改进的Whipple防护结构与相关数值模拟方法研究进展  

A review on the improved Whipple shield and related numerical simulations

作　　者：陈莹 陈小伟 CHEN Ying;CHEN Xiaowei(School of Mechatronical Engineering,Beijing Institute of Technology,Beijing 100081,China;State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing 100081,China;Advanced Research Institute of Multidisciplinary Science,Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]北京理工大学机电学院,北京100081 [2]北京理工大学爆炸科学与技术国家重点实验室,北京100081 [3]北京理工大学前沿交叉科学研究院,北京100081

出　　处：《爆炸与冲击》2021年第2期29-55,共27页Explosion and Shock Waves

基　　金：国家自然科学基金(11627901,11872118)。

摘　　要：基于弹丸在超高速撞击薄板时破碎形成碎片云的机理,Whipple防护结构能够对航天器所面临的空间碎片及微流星体等威胁形成有效防护。通过回顾Whipple防护结构的研究和发展历程,对多层板结构、填充式防护结构、夹芯板结构等进行对比,分析其力学效应和防护性能;总结可应用于含泡沫、蜂窝、梯度和编织等材料的防护结构超高速撞击的数值模拟方法及其改进方法;结合相关材料的超高速撞击试验及数值模拟结果,为防护结构未来的研究方向提出建议。Based on the formation mechanism of the debris cloud caused by the projectile hypervelocity impacting onto a thin plate,the Whipple shield can effectively protect the spacecraft from space debris and micrometeoroid.By reviewing the research and development of the Whipple shield,and compares the mechanical effects and protective performance of multilayer,stuffed and sandwich shield.The paper also summarizes the application of numerical simulation methods and their improvement for the hypervelocity impact of protective structures containing materials such as foam and honeycomb,etc.By addressing the results of hypervelocity impact tests and numerical simulations of relevant materials,suggestions are made for the future research of the Whipple shield.

关 键 词：超高速碰撞 WHIPPLE防护结构 碎片云 多层板结构 填充/夹芯板结构 FEM-SPH自适应耦合算法 

分 类 号：O385[理学—流体力学]