基于FE-SPH自适应耦合算法对长杆弹侵彻反应装甲的模拟研究  

SIMULATION OF LONG-ROD PROJECTILE PENETRATING REACTIVE ARMOR USING THE FE-SPH ADAPTIVE COUPLING METHOD

作　　者：杨刚[1] 傅奕轲 郑建民[1] 胡德安[1] 

机构地区：[1]湖南大学机械与运载工程学院特种装备先进设计技术与仿真教育部重点实验室,湖南长沙410082

出　　处：《工程力学》2016年第1期223-231,共9页Engineering Mechanics

基　　金：国家自然科学基金项目(11102065);高等学校博士学科点专项科研基金新教师类项目(20110161120038);中央高校基本科研业务费项目

摘　　要：该文采用自编程序实现的FE-SPH自适应耦合算法对长杆弹侵彻反应装甲的过程开展了数值模拟研究。为了实现反应装甲中的凝聚炸药在长杆弹冲击作用下的起爆过程,在FE-SPH自适应耦合算法中嵌入了凝聚炸药的点火-增长模型。该文首先应用FE-SPH自适应耦合算法对二维轴对称反应装甲冲击起爆模型进行了模拟分析,并以此验证了自适应FE-SPH自适应耦合算法对此类问题模拟的可行性和有效性。其次,针对长杆弹斜侵彻反应装甲的过程进行模拟,再现了反应装甲动态响应干扰长杆弹入侵的过程。通过与相关实验数据结果及其他方法模拟的结果对比,FE-SPH自适应耦合方法能够有效地对长杆弹侵彻反应装甲和后效目标靶进行一体化仿真。The process of a long-rod projectile penetrating reactive armor is simulated based on the self-code adaptive coupling method of Finite Element-Smoothed particle hydrodynamics（FE-SPH）. An ignition and growth model is incorporated into the FE-SPH adaptive coupling method to reproduce the detonation process of condensed explosive which is initiated by the penetrating of a long-rod projectile. A two-dimensional axisymmetric model for a long-rod projectile penetrating reactive armor is firstly simulated and compared with theoretical solution to verify the effectiveness of FE-SPH adaptive coupling method. Then, the process of long-rod projectile oblique penetrating into a reactive armor is simulated and analyzed by the FE-SPH adaptive coupling method. The efficiency of reactive armor responses to long-rod projectile penetrating is successfully reproduced in the simulation. Compared with the experiment data and other numerical results, it is indicated that the FE-SPH adaptive coupling method can be able to integrate the simulation of a long-rod projectile penetrating reactive armor and subsequent targets.

关 键 词：工程力学 反应装甲 FE-SPH 侵彻 起爆 

分 类 号：O385[理学—流体力学]