基于光滑粒子流体动力学数值仿真方法的武器系统冲击损伤虚拟试验  

The Virtual Test of Impact Damage on Weapon SystemBased on SPH Numerical Simulation Method

作　　者：李鹏飞 夏洪利 侯川玉 周宇琦 缪海斌 LI Pengfei;XIA Hongli;HOU Chuanyu;ZHOU Yuqi;MIAO Haibin(Test and Measuring Academy of Norinco Group,Xi an 710086,Shaanxi,China)

机构地区：[1]中国兵器工业试验测试研究院,陕西西安710086

出　　处：《兵工学报》2024年第S02期208-214,共7页Acta Armamentarii

摘　　要：冲击损伤问题广泛存在于各类武器装备中并严重影响装备使用及寿命,目前针对冲击损伤的虚拟试验研究尚没有普遍适用的基础模型。围绕冲击损伤虚拟试验基础模型构建问题,对光滑流体动力学基本原理及其数值仿真方法在冲击损伤虚拟试验中的应用展开深入论述。构建改进的光滑粒子流体动力学(Smoothed Particle Hydrodynamics,SPH)数值计算模型,对物理模型的粒子化处理、材料边界处理等问题进行详细论述。对典型的刚性颗粒冲击铜靶板问题进行仿真计算,验证仿真可靠性和计算准确性,并对刚性颗粒不同棱角接触靶板的损伤情况进行对比分析,以充分说明SPH方法在冲击损伤虚拟试验中的适用性。The problem of impact damage widely exists in various types of weapons and equipment,and seriously affects their use and lifespan.Currently,there is no universally applicable basic model for virtual experimental research on impact damage.This article focuses on the construction of basic model for impact damage virtual testing,and discusses the basic principles of smooth fluid dynamics and the application of its numerical simulation method in impact damage virtual testing.An improved smoothed particle hydrodynamics(SPH)numerical calculation model is constructed,and the particle processing and material boundary treatment of physical models are discussed in detail.Simulation calculations are conducted on the impact of typical rigid particles on the impact copper target plates,verifying the reliability and accuracy of the simulation.The damage situations of target plates impacted by the rigid particles with different edges and angles are compared and analyzed,fully demonstrating the applicability of the SPH method in virtual impact damage testing.

关 键 词：冲击损伤 光滑粒子流体动力学 边界处理方法 虚拟试验 数值仿真 

分 类 号：O313.4[理学—一般力学与力学基础]