摘要
以某轻型无人平台为研究对象,应用有限元数值仿真技术建立全炮有限元动力学模型,对单兵火箭发射载荷模块进行了动力学仿真计算,获得了发射装置动力学响应。基于Lanczos迭代法得到了车架模态分析结果,确定了系统火箭弹发射间隔。基于全因子试验设计方法,以射序为优化变量,以炮口扰动最小为优化目标构建目标函数,通过数值仿真计算对比得出最优射序,优化结果表明:优化后的火箭弹起始扰动降低了19%。通过实弹射击对优化结果进行了验证,结果表明:在有效射程附近,满管齐射后落点高低散布为0.32 m,方位散布为0.28 m。分析结果为轻型无人平台单兵火箭弹发射装置结构设计及优化提供了重要理论依据。
Taking a light unmanned platform as the research object,finite element numerical simulation technology was used to establish the finite element dynamic model of the whole gun,the dynamic simulation calculation of the individual rocket launching load module was carried out,and the dynamic response of the launcher was obtained.Based on Lanczos iterative method,the frame modal analysis results were obtained,and the rocket firing interval of the system was determined.Based on the full factor experimental design method,the objective function was constructed with the firing sequence as the optimization variable and the minimum muzzle disturbance as the optimization objective.The optimal firing sequence was obtained through numerical simulation and comparison.The optimization results showed that the optimized initial disturbance of the rocket was reduced by 19%.The optimization results were verified by live firing.The results showed that the height and azimuth dispersion of the drop point were 0.32 m and 0.28 m near the effective range.The analysis results provide an important theoretical basis for the structural design and optimization of light unmanned platform individual rocket launcher.
作者
张鑫
ZHANG Xin(Jiangsu Automation Research Institute,Lianyungang 222061,Jiangsu,China)
出处
《火炮发射与控制学报》
北大核心
2025年第3期82-88,共7页
Journal of Gun Launch & Control
关键词
无人平台
火箭武器
有限元法
发射动力学
射弹散布
unmanned platform
rocket weapon
finite element method
launch dynamics
projectile dispersion
