某大口径火炮身管膛线结构优化设计  

Optimization Design of Rifling Structure of a Certain Large-Caliber Gun Barrel

作　　者：张鑫[1] 梁林[2] 邹利波[1] 徐强[1] 于存贵[1] ZHANG Xin;LIANG Lin;ZOU Libo;XU Qiang;YU Cungui(School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China;713th Research Institute of China Shipbuilding Industry Corporation, Zhengzhou 450015, Henan, China)

机构地区：[1]南京理工大学机械工程学院,江苏南京210094 [2]中国船舶重工集团公司第七一三研究所,河南郑州450015

出　　处：《火炮发射与控制学报》2021年第2期62-67,83,共7页Journal of Gun Launch & Control

摘　　要：以某大口径火炮为研究对象,运用有限元仿真技术,通过Python语言对弹炮耦合有限元模型进行二次开发,建立弹炮耦合参数化有限元模型。在弹炮耦合参数化有限元模型的基础上,以膛线结构参数为设计变量,以炮口扰动和导转侧受力最小为优化目标构建目标函数,借助最优拉丁超立方试验设计建立样本空间,构造响应面多项式函数近似模型,利用NSGA-Ⅱ型遗传算法对膛线结构进行多目标优化,通过对比分析对优化结果进行验证。优化结果表明,优化后的膛线结构使导转侧受力和弹丸起始扰动分别减小了25.8%和28.8%.Taking a large-caliber gun as the object of study,the finite element simulation technology is applied to the secondary development of finite element model of projectile-barrel coupling through the Python language to establish projectile-barrel coupled parametric finite element model.On the basis of the projectile-barrel coupled parametric finite element model,the objective function is constructed with the rifling structure parameters as design variables and the minimum muzzle disturbance and guide bearing side force as optimization objectives.The sample space is established with the help of the optimal Latin hypercube test design,with the response surface polynomial function approximation model constructed,and with the NSGA-Ⅱgenetic algorithm used for multi-objective optimization of the rifling structure.At last,through comparative analysis of the optimization result,the optimization results show that the optimized rifling structure reduces the guide bearing side force and the initial disturbance of projectile by 25.8%and 28.8%,respectively.

关 键 词：弹炮耦合 有限元法 参数化建模 膛线 多目标优化 

分 类 号：TJ762[兵器科学与技术—武器系统与运用工程]