摘要
为了减小高射频航炮的后坐力,提高射击精度和稳定性,设计了一种适配高射频的变阻尼孔缓冲装置。通过分析缓冲装置的工作原理,对关键参数进行设计,建立了具有摩擦力stribeck效应的自动机缓冲装置动力学模型。为降低航炮后坐力,通过非支配排序遗传算法(NSGA-Ⅲ)得到最优的变阻尼孔直径、弹簧刚度以及弹簧预紧力,将优化前后的参数进行动力学响应对比分析。结果表明:优化后的航炮连发稳定射击时的最大后坐力降低约19.3%,最大后坐位移降低了3.7%,提高航炮在射击过程中的稳定性,为航炮缓冲装置的参数设计提供参考。
To reduce the recoil of high RF aerial gun and improve the firing accuracy and stability,a variable damping hole buffer device adapted to high RF was designed.By analyzing the working principle of the buffer device and designing the key parameters,a dynamic model of the automaton buffer device with friction stribeck effect was established.To reduce the recoil of the gun,the optimal variable damping hole diameter,spring stiffness and spring preload was obtained by the non-dominated sorting genetic algorithm(NSGA-Ⅲ),and the parameters before and after the optimization were analyzed for the comparison of the dynamic response.The results show that the maximum recoil force of the optimized aerial gun is reduced by about 19.3%,and the maximum recoil displacement is reduced by 3.7%when the aerial gun is fired in a series of stable shots,which improves the stability of the aerial gun in the firing process and provides a reference to the parameter design of the aerial gun buffer device.
作者
刘峻昊
岳帅
单君宇
杜忠华
LIU Junhao;YUE Shuai;SHAN Junyu;DU Zhonghua(School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China;School of Equipment Engineering,Shenyang Ligong University,Shenyang 110158,China)
出处
《兵器装备工程学报》
CAS
CSCD
北大核心
2024年第7期88-96,共9页
Journal of Ordnance Equipment Engineering
基金
国家自然科学基金项目(52102436)
中国博士后科学基金项目(2020M681615)
江苏省自然科学基金项目(BK20200496)
宁波大学冲击与安全工程教育部重点实验室开放基金项目(CJ202107)
上海市自然科学基金项目(23ZR1462700)。
关键词
航炮
缓冲装置
参数优化
后坐力
aircraft gun
buffer
parameters optimization
recoil force
作者简介
刘峻昊(1996-),男,硕士研究生,E-mail:ljhao@njust.edu.cn;通信作者:岳帅(1989-),男,博士,副教授,硕士生导师,E-mail:yueshuai@njust.edu.cn。
