基于正交试验法的聚能装药结构优化设计  

Optimal Design for Shaped Charge Structure Based on an Experimental Design Method

作　　者：杨冬梅[1] 张爱平[1] 赵有守[1] 

机构地区：[1]南京理工大学机械工程学院,江苏南京210094

出　　处：《兵工学报》2007年第2期215-219,共5页Acta Armamentarii

摘　　要：常用的聚能装药结构设计方法是在经验的基础上通过试验或数值仿真,确定装药结构参数,从几个待选方案中选择相对较好的方案,并不是真正意义上的优化且设计周期较长。基于正交试验法,提出了一种不需要构建目标函数、约束条件函数和进行微分计算的聚能装药结构优化方法。以影响聚能装药破甲深度的药型罩锥角、壁厚等主要因素为设计变量,以破甲深度最大为目标函数值,建立了基于正交试验法的优化模型。通过选择适当的正交表,把选定的设计变量的三水平值配列于正交表中,在方差分析和F检验的基础上,求出设计变量的最优组合,反复迭代后得到全局最优解。以125 mm聚能装药结构设计为例,进行了试算,计算结果表明:优化结构与原方案相比,提高了破甲深度,表明了该优化方法的可行性。A shaped charge structure is usually designed by experience, based on lots of tests and simulation calculations, and the final decision is usually chosen from several candidates. It is not a real optimum design, and the design period is long. An optimization method for shaped charge structure design based on experimental design method was proposed. Without forming the objective function, constraint functions and differential calculations, the optimization method is simple and feasible. A set of combinations of design variables such as liner angle, wall thickness and so on, with their three level values was arranged in a propriety orthogonal array in order to evaluate the structural response, namely the jet penetration depth of the shaped charge. The optimum solution of all design variables with the optimum jet penetration depth was attained by iterative calculations on the basis of analysis of variance and F-test application. The structural design of 125 mm caliber shaped charge as an example was calculated and analyzed with the proposed optimum program. By comparing the results of program calculation and the former scheme, the optimization method based on experimental design method indicates feasibility in helping to get an optimum scheme of the shaped charge structural design.

关 键 词：爆炸力学 终点弹道学 聚能装药 结构优化设计 试验设计法 正交试验 

分 类 号：TJ012.4[兵器科学与技术—兵器发射理论与技术] TJ410.2