采用有限元数值仿真方法对导弹发射时某型玻璃纤维复合材料发射筒筒体的刚强度进行评估分析。将筒壁螺旋层螺旋角、环向层与螺旋层厚度比以及筒壁厚度作为设计变量，对复合材料发射筒筒体进行优化设计。研究结果表明：优化前的复合材料发射筒筒体安全裕度低，不满足设计要求；优化的复合材料发射筒筒体最大位移降低了57.8%，安全裕度提高到0.27，满足了筒体设计要求，且复合材料发射筒筒体重量比优化前轻6.8%。研究结果为复合材料发射筒筒体的设计提供参考。
The stiffness and strength response characteristics of a type of glass fiber comoposite launch tube barrel under missile launch conditions were evaluated by using finite element numerical simulation method.The helix angle of the spiral layer of the cylinder wall,the thickness ratio of the circumferential layer to the spiral layer and the thickness of the cylinder wall were used as design variables to optimize the design of the composite launch tube.The results show that the safety margin of the composite launch tube before optimization is low and does not meet the design requirements;the maximum displacement of the optimized composite launch tube barrel is reduced by 57.8%,the safety margin is increased to 0.27,and the design requirements are met,and the weight of the composite launch tube is 6.8% lighter than before optimization.The results of the study provide a reference for the design of the composite launch tube barrel.
2024,46(2): 180-184 收稿日期：2022-11-11
DOI：10.3404/j.issn.1672-7649.2024.02.032
分类号：TJ768;TP391.9
作者简介：李永康(1995-),男,硕士,助理工程师,研究方向为水面兵器发射技术
参考文献：
[1] 李小东, 黄军. 复合材料发射箱体缠绕成型工艺研究 [J]. 包装工程, 2018, 39(7): 132−135.
[2] 刘东, 王向往, 郭敬彬, 等. 复合材料发射筒筒体内压工况下强度刚度仿真[J]. 舰船科学技术, 2020, 42(17): 111–115
LIU D, WANG X W, GUO J B, et al. Simulation research on strength and stiffness of a compo-sitematerial launch tube under internal pressure[J]. Ship Science and Technology, 2020, 42(17): 111–115
[3] 王琪. 某动能破门弹复合材料发射筒筒体的研究[D]. 南京: 南京理工大学, 2018.
[4] 沈克纯, 潘光. 施瑶, 等. 静水压力下纤维缠绕复合材料圆柱壳体的稳定性分析[J]. 西北工业大学学报, 2018, 36(5): 839–847
[5] LOPATIN A V, MORZOV E V. Buckling of the sa-ndwich cylindrical shell with clamped ends under uniform external pressure[J]. Composite Structure, 2015, 122(122): 209–216
[6] 陈悦, 李华东. 静水压力下复合材料夹层圆柱壳承载特性分析[J]. 舰船科学与技术, 2022, 44(7): 20–24
CHEN Yue, LI Huadong. Analysis of load bearing characteristics of composite sandwich cylindrical shell under hydrostatic pressure[J]. Ship Science and Technology, 2022, 44(7): 20–24
[7] 安庆升, 孙立东, 武秋生. 碳纤维增强复合材料发射筒筒体设计研究[J]. 空天防御, 2021(2): 13–19
[8] 郑强. 全缠绕复合气瓶有限元分析和优化设计[D]. 武汉: 武汉理工大学, 2008.
[9] 杨庆生. 复合材料力学[M]. 北京: 科学出版社, 2020.
[10] 辛春亮, 薛再清, 涂建, 等. 有限元分析常用材料参数手册[M]. 北京: 机械工业出版社, 2019.
