摘要
为了研究圆筒形辅助结构对半球药型罩射流成型及侵彻性能的影响,运用非线性动力学仿真软件Autodyn-2D的Euler算法对模型进行数值仿真。研究得到:带有圆筒形辅助结构的半球药型罩比普通半球罩成型更好,射流头部速度提高了58.75%,射流长度提高了61.54%,侵彻能力提高了46.08%.据此结果,当研究结构的圆筒直径为30 mm、圆筒高度为30 mm时,射流的综合性能达到最好。
In order to study the influence of the cylindrical auxiliary structure on the jet forming and penetration performance of the hemispherical hood, the numerical simulation of the model was carried out through the use of the Euler algorithm of the nonlinear dynamics simulation software Autodyn-2 D. The results show that the hemispherical hood with cylindrical auxiliary structure is better than the common one. The velocity of the jet head is increased by 58.75%, the length of the jet is increased by 61.54%, and the penetration ability is increased by 46.08%. According to the results, when the dia-meter of the cylinder is 30 mm and the height of the cylinder is 30 mm, the comprehensive perfor-mance of the jet is the best.
作者
张小静
吴国东
王志军
董方栋
ZHANG Xiaojing;WU Guodong;WANG Zhijun;DONG Fangdong(College of Mechatronics Engineering,North University of China,Taiyuan 030051,Shanxi,China;Science and Technology on Transient Impact Laboratory,Beijing 102202,China)
出处
《火炮发射与控制学报》
北大核心
2020年第1期7-12,共6页
Journal of Gun Launch & Control
基金
国家自然科学基金资助(11572291)
瞬态冲击技术重点实验室基金(61426060101)
中北大学第十五届研究生科技立项项目(20181509)
关键词
圆筒辅助结构
半球药型罩
射流成型
数值仿真
cylindrical auxiliary structure
hemispherical hood
jet forming
numerical simulation
