Research on Non-blasting Flexible Cylinder Launcher

doi:10.3969/j.issn.1000-1093.2017.02.025

Abstract

Abstract: A flexible cylinder launcher based on compressed gas mute launch was developed in order to realize to do work in changing distance to ejection object in the case of constraint and non-blasting. The dynamic characteristics of flexible cylinder launcher is studied through the analysis of catapult theory, simulation calculation and experimental verification. Results indicate that the flexible cylinder launcher can catapult the projectiles when it is folded, compressed, inflated and unfolded, and no blasting phenomenon exists during catapulting. The catapult ability of launcher is affected by the initial length of the flexible cylinder, the contact area of flexible cylinder and projectile, the pressure in flexible cylinder and other factors. The catapult ability of flexible cylinder with different initial lengths is researched. It is found that the longer the initial length is, and the more the fold number of flexible cylinder is, the longer the its catapult distance is, and the stronger its catapult ability is. Under the action of the pressure 2 MPa, a 1 000 mm×2 000 mm four flexible cylinder group which catapults a 60 t projectile can produce 4.6 MJ energy. It reflects that flexible cylinder launcher can realize to catapult large mass object. Key

Key words: experimentaltechnologyofaerocraft, launcher, flexiblewall, cylinder, compressedaircatapult

CLC Number:

V216.5⁺5

LIU Zhong-bin， XIAO Shou-ne， WANG Huan. Research on Non-blasting Flexible Cylinder Launcher[J]. Acta Armamentarii, 2017, 38(2): 389-395.

References

［1］ Kawashima N, Yamori A, Yanagisawa M, et al. Stable and reproducible production of high velocity projectile in ISAS railgun (HYPAC)[J]. IEEE Transactions on Magnetics, 1993, 29(1):431-434.
[2］程刚,倪何,孙丰瑞.舰载蒸汽弹射系统建模与仿真研究[J].武汉理工大学学报:交通科学与工程版,2010,34(2):301-305.
CHENG Gang, NI He, SUN Feng-rui. Modeling and simulation research on naval steam-power aircraft launch system[J]. Journal of Wuhan University of Technology:Transportation Science and Engineering, 2010,34(2):301-305. (in Chinese)
[3］雪巴.五花八门的弹射器_美国海军航母弹射飞行发展史[J].舰载武器,2007(4):60-68.
XUE Ba. Gradual progress of carrier-based aircraft catapult in U.S. Navy[J]. Shipborne Weapons, 2007(4):60-68. (in Chinese)
[4］赵伟. 液压弹射机构设计及其关键控制元件的研究[D].杭州：浙江工业大学,2013.
ZHAO Wei. Design of hydraulic catapult mechanism andresearch on its key control components[D].Hangzhou: Zhejiang University of Technology, 2013.(in Chinese)
[5］周建文.飞机导弹弹射系统动特性分析和仿真研究[D].西安:西北工业大学,2004.
ZHOU Jian-wen. The plane missile ejection system dynamic characteristic analysis and simulation study[D]. Xi'an: Northwestern Polytechnical University, 2004. (in Chinese)
[6］卢立秀,汤军社,门党党,等．导弹弹射机构的建模与仿真研究[J].弹箭与制导学报,2008,28(5):29-31,40.
LU Li-xiu, TANG Jun-she, MEN Dang-dang,et al. Modeling and simulation study of missile ejection mechanism[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2008,28(5):29-31,40. (in Chinese)
[7］马琳,俞浙青,阮健.气液快速动作机构设计及其动态特性研究[J].机床与液压,2010,38(5):84-86.
MA Lin, YU Zhe-qing, RUAN Jian. Design on gas-liquid fast-action mechanism and study on its dynamic characteristics [J]. Machine Tool and Hydraulics, 2010,38(5):84-86. (in Chinese)
[8］马琳.气液弹射机构设计及动态特性研究[D].杭州:浙江工业大学,2009.
MA Lin. Study on gas-liquid ejection launcher design and dynamic characteristics[D]. Hangzhou: Zhejiang University of Technology, 2009.(Chinese)
[9］刘乃新.气液弹射机构的设计及关键控制元件的研究[D].杭州:浙江工业大学,2009.
LIU Nai-xin. Designing of gas-liquid ejection mechanism & investigation of the key control component [D]. Hangzhou: Zhejiang University of Technology, 2009.(in Chinese)

[10］王晓蕾,翁兴国,叶松,等. NMOHEMS机载单元气动弹射模型研究[J]. 系统仿真学报,2014,26(4):920-925.
WANG Xiao-lei, WENG Xing-guo, YE Song, et al. Research of pneumatic ejection model of NMOHENS’airborne units[J].Journal of System Simulation, 2014,26(4):920-925. (in Chinese)

第38卷第2期2017 年2月兵工学报ACTA
ARMAMENTARIIVol.38No.2Feb.2017

[1]	WANG Haiyang, LONG Renrong, ZHANG Qingming, LIU Bowen, LIAO Chen. Deformation Model of Ring-stiffened Conical-cylindrical Shell under Deep-underwater Explosion Based on Plastic String Method [J]. Acta Armamentarii, 2024, 45(3): 705-719.
[2]	DING Yanchao, WANG Baoshou, WU Wenting, LIU Xinhui, TONG Xin. Modeling of Interior Trajectory of Water-driven Underwater Launch Device with Two-stage Piston [J]. Acta Armamentarii, 2024, 45(2): 594-605.
[3]	TIAN Zhongliang, LI Junwei, HE Ye, XU Tuanwei, DING Miao, WANG Ningfei. Analysis of Interior Ballistic Characteristics of Conical Three-Dimensional Charge Column Under Lateral Overload [J]. Acta Armamentarii, 2023, 44(7): 1896-1907.
[4]	ZHANG Jiawei, LU Junyong, TAN Sai, LI Bai, ZHANG Yongsheng. Research Status of Surface Damage in Rails for Electromagnetic Launchers [J]. Acta Armamentarii, 2023, 44(7): 1908-1919.
[5]	WU Han, ZHANG Zeyu, SUN Baigang, LI Xiangrong. Theoretical Thermodynamic Cycle Analysis of Continuous Combustion Multi-Cylinder Engine [J]. Acta Armamentarii, 2023, 44(1): 74-83.
[6]	HE Jiawei, ZHAI Junyi, GAO Weipeng, LI Ye. Numerical Simulation of Flow Characteristics of the Underwater Vehicle with a Cylindrical Structure Based onDifferent Turbulence Models [J]. Acta Armamentarii, 2022, 43(S2): 53-63.
[7]	JIN Wen, MEN Jianbing, JIANG Jianwei, PENG Jiacheng, LI Mei. Computational Model for the Critical Ricochet Angle of a Tungsten Alloy Long Rod Projectile Impacting a Thick-walled Cylinder [J]. Acta Armamentarii, 2022, 43(8): 1808-1815.
[8]	JIA Qiming， JIANG Yi， YANG Ying， ZHAO Zixi， WANG Zhihao. A New Type of Controllable Thrust Vertical Launcher and its Interior Ballistic Law [J]. Acta Armamentarii, 2022, 43(7): 1596-1605.
[9]	ZHAO Zhen， JIANG Yi， LIU Xiangxin， LI Yulong， YAN Song. Numerical Simulation of Ejecting a Missile From Missile Ejection System with Flexible Cylinder Based on Corpuscular Method [J]. Acta Armamentarii, 2022, 43(3): 533-541.
[10]	ZHANG Baozhen, WANG Hanping, DOU Jianzhong, CHENG Mengwen. Fluid-structure Coupling Simulation Method for the Opening Process of Fragile Front Cover of Canister Launcher [J]. Acta Armamentarii, 2021, 42(8): 1660-1669.
[11]	LI Shurui， DUAN Zhuoping， ZHENG Baohui， LUO Guan， HUANG Fenglei. Cylinder Test and Equation of State for DNAN-based Aluminized Melt-cast Explosive [J]. Acta Armamentarii, 2021, 42(7): 1424-1430.
[12]	LIANG Haozhe, ZHANG Qingming, LONG Renrong, REN Siyuan. Failure Modes of Ring-stiffened Convex Cone-cylinder in Deep Underwater Explosion [J]. Acta Armamentarii, 2021, 42(5): 987-996.
[13]	REN Liuzhen， LI Lin， ZHANG Mengzhuo， FENG Jiaxing， HU Haibao. Control of Wake Flow of a Circular Cylinder by Continuous Blow and Suction [J]. Acta Armamentarii, 2021, 42(5): 1016-1022.
[14]	LUO Qian， HU Changli. Domain Computing Method Based on Partially-averaged Navier-Stokes Turbulence Model [J]. Acta Armamentarii, 2021, 42(1): 100-107.
[15]	LIN Tong， QIAN Linfang， FU Jiawei， WANG Mingming. Parameter Identification and Sensitivity analysis of Gun Elevating Equilibrator [J]. Acta Armamentarii, 2020, 41(9): 1736-1744.