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Research on small stroke hydraulic buffer device of rocket launcher(PDF)


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Research on small stroke hydraulic buffer device of rocket launcher
Li Zhuangzhuang1Wang Lu2Lin Jiahui1Mo Zonglai1Li Jun1
1.School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China; 2.Academy of Opto-Electronics Technology Group Corporation,Tianjin 300308,China
rocket launchers recoil force hydraulic buffers throttle valves joint simulation of liquid-solid
Aiming at the problem of structural deformation and strength damage of launch system caused by large recoil force of the electromagnetic ejection rocket launcher,a small stroke hydraulic buffer device is designed based on the principle of viscous fluid flowing through small holes to produce damping force. The device can realize recoil force buffering with small stroke within the allowable elastic deformation range of the rocket launcher. According to the buffer stroke obtained by the finite element method,the recoil motion track of the buffer device is designed,and the variation law of the throttle valve opening area under the motion track is deduced and solved. By controlling opening area of the throttle valve,the system flow is controlled to make the recoil move according to the designed trajectory. The AMESim and the Adams are used to simulate the liquid-solid joint under different buffer strokes. The results show that the buffer device in this paper can realize recoil force buffering in small stroke.


[1] 赵科义,向红军,孙丽萍,等. 电磁弹射器结构设计及其动态弹射性能[J]. 兵器装备工程学报,2019,40(7):70-75.
Zhao Keyi, Xiang Hongjun, Sun Liping, et al. Structure design of two kinds of electromagnetic catapult and their dynamic catapult performance[J]. Journal of Ordnance Equipment Engineering,2019,40(7):70-75.
[2]陈四春,杨翠东,李军,等. 电磁推动发射装置结构优化方法及应用[J]. 南京理工大学学报,2018,42(6):647-654.
Chen Sichun,Yang Cuidong,Li Jun,et al. Structural optimization method and application of electromagnetic propulsion launcher[J]. Journal of Nanjing University of Technology,2018,42(6):647-654.
[3]李军. 火箭武器发射过程的燃气射流[M]. 北京:科学出版社,2018.
[4]印圣,邱明,宋杰,等. 基于刚度可变弹簧缓冲的某航炮后坐过程动力学建模及仿真[J]. 兵器装备工程学报,2020,41(6):7-11.
Yin Sheng, Qiu Ming, Song Jie, et al. Dynamic modeling and simulation of aircraft gun recoil process based on stiffness variable spring buffer[J]. Journal of Ordnance Equipment Engineering,2020,41(6):7-11.
[5]李军. 火箭发射系统设计[M]. 北京:国防工业出版社,2008.
[6]郝保臣,孙卫国,潘孝斌. 某火炮液压缓冲器缓冲特性研究[J]. 兵器装备工程学报,2018,39(9):54-58.
Hao Baochen, Sun Weiguo, Pan Xiaobin. Study on the buffer characteristics of artillery hydraulic buffer[J]. Journal of Ordnance Equipment Engineering,2018,39(9):54-58.
[7]杜中华,狄长春. 某火炮复杂反后坐装置工作特性仿真分析[J]. 机械工程师,2011(2):96-99.
Du Zhonghua,Di Changchun. Simulation analysis of the working characteristics of a gun complex anti recoil device[J]. Mechanical Engineer,2011(2):96-99.
[8]谢克瑜,袁伟群,徐蓉,等. 电磁轨道发射系统后坐力研究及反后坐装置设计[J]. 弹道学报,2014(4):98-101.
Xie Keyu,Yuan Weiqun,Xu Rong,et al. Research on recoil force of electromagnetic orbital launch system and design of anti-recoil device[J]. Journal of Ballistics,2014(4):98-101.
[9]Rui C,Liu Y,Yan C. A criterion for flow mechanisms through vertical sharp-edged orifice and model for the orifice discharge coefficient[J]. Petroleum Science,2011,8(1):108-113.
[10]Tang Z Y,Wu G,Lu J Y,et al. Application of variable damping hydraulic buffer in braking large mass impact loading problem[J]. Applied Mechanics & Materials,2015,716-717:619-622.
[11]袁小川,郭迎清. 机械液压系统流量方程中流量系数的选取[J]. 航空计算技术,2006,36(5):90-91.
Yuan Xiaochuan,Guo Yingqing. Selection of flow coefficient in flow equation of mechanical hydraulic system[J]. Aviation Computing Technology,2006,36(5):90-91
[12]徐辅仁. 对O形密封圈引起的摩擦力的计算[J]. 润滑与密封,1989(1):32-34.
Xu Furen. Calculation of friction force caused by O-ring seal[J]. Lubrication and Seal,1989(1):32-34.
[13]刘海丽. 基于AMESim的液压系统建模与仿真技术研究[D]. 西安:西北工业大学动力与能源学院,2006.


Last Update: 2020-08-30