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Journal of Projectiles, Rockets, Missiles and Guidance >

2025 , Vol. 45 >Issue 4: 555 - 559

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2025.04.014

Others

Strength Analysis of Connection Between Base and Carrier Shell of Terminal Sensitive Munition

  • YUE Haoran ,
  • LIANG Jianfeng ,
  • TIAN Ming ,
  • ZHOU Siyuan ,
  • YANG Guang
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  • Xi'an Mordern Control Technology Research Institute,Xi'an 710065,Shaanxi,China

Received date: 2024-07-21

  Online published: 2025-09-22

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Abstract

The terminal sensitive munition of the howitzer is a single active rearward ejecting rotating projectile, which contains carrier shell, submunitions, base and others. The carrier shell is, during the firing process, the only component that is imparted spin by the interaction between the rotating band (or grommet)of the projectile and the rifling(or land) of the tube of the cannon, and drives the internal submunitions and the base, etc. to rotate together. This article analyzes the failure phenomenon of the base thread of the projectile during launch. Through fault tree analysis, simulation calculation, and theoretical analysis, the cause of the failure is identified, and the theoretical mechanism of the base thread failure is provided. The works are by decomposing the complex forces on the base and summarizing a rotational torque decomposition method of the submunitions for the projectile, and quantitatively calculating the torque of each decomposed part. The reason for the detachment of the base could be determined to be due to insufficient strength of the submunition rotating pin, which caused the rotation of the submunition and the carrier shell to be asynchronous. The frictional force between the submunition and the base results in a significant increase in the inertia moment of the base, causing a sudden increase in the tightening torque of the thread at the base during firing, leading to thread shear failure, because the shear stress forced on the thread is much larger than the allowable stress of 1 293 MPa. This study reveals the influence of the synchronous rotation ability between the submunition and the carrier shell of this type of munition on the strength of the base connection, which has guiding significance for the design of similar products in the future.

Key words： base ejecting cluster projectile; rotating projectile; thread strength; fault analysis

Cite this article

YUE Haoran , LIANG Jianfeng , TIAN Ming , ZHOU Siyuan , YANG Guang . Strength Analysis of Connection Between Base and Carrier Shell of Terminal Sensitive Munition[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2025 , 45(4) : 555 -559 . DOI: 10.15892/j.cnki.djzdxb.2025.04.014

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References

Publishing order | Descend order by publishing year | Descend order by cited within
[1]
杨绍卿. 论武器装备的新领域——灵巧弹药[J]. 中国工程科学, 2009, 11(10): 4-7.

YANG S Q. A new field of weapons—smart munitions[J]. Strategic Study of CAE, 2009, 11(10): 4-7.

[2]
郑荣跃, 秦子增. 子母弹研究进展[J]. 国防科技大学学报, 1996, 18(1): 60-64.

ZHENG R Y, QIN Z Z. Recent development in submunation[J]. Journal of National University of Defense Technology, 1996, 18(1): 60-64.

[3]
林永生. 后抛式子母弹开舱可靠性设计[J]. 兵工学报弹箭分册, 1988(4): 17-24.

LIN Y S. Reliability design of rear throwing cluster bomb opening[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 1988(4): 17-24.

[4]
张本, 陆军. 子母弹抛撒技术综述[J]. 四川兵工学报, 2006(3): 26-29.

ZHANG B, LU J. Overview of submunation dispersion technology[J]. Journal of Ordnance Equipment Engineering, 2006(3): 26-29.

[5]
陶如意, 王浩, 黄蓓. 子母弹活塞式抛撒机构空中抛撒模型及仿真研究[J]. 兵工学报, 2009, 30(3): 282-288.

TAO R Y, WANG H, HUANG P. The model and simulation of aerial dispersing on piston dispersal mechanism of cluster munition[J]. Acta Armamentarii, 2009, 30(3): 282-288.

[6]
张珂. 子母弹抛撒技术研究[D]. 南京: 南京理工大学, 2013.

ZHANG K. Research on the dispersion technology of cluster munition[D]. Nanjing: Nanjing University of Science and Technology, 2013.

[7]
魏惠之. 弹丸设计理论[M]. 北京: 国防工业出版社, 1985.

WEI H Z. Projectile design theory[M]. Beijing: National Defense Industry Press, 1985.

[8]
常星星, 吴星超, 张晓川. 弹带挤进过程膛线受力的影响分析[J]. 兵器装备工程学报, 2020, 41(1): 78-82.

CHANG X X, WU X C, ZHANG X C. Influence of rifle force on rotation band engraving process[J]. Journal of Ordnance Equipment Engineering, 2020, 41(1): 78-82.

[9]
高科, 邢柏阳, 张利. 某型炮射末敏弹发射强度分析[J]. 机械制造与自动化, 2017, 46(4): 209-210.

GAO K, XING B Y, ZHANG L. Strength analysis of terminal-sensitive projectile for howitzer[J]. Machine Building & Automation, 2017, 46(4): 209-210.

[10]
程丽丽. 炮射末敏弹弹道仿真与流程优化设计[D]. 西安: 西安电子科技大学, 2016.

CHENG L L. Trajectory simulation and process optimization design of artillery terminal-sensitive projectile[D]. Xi'an: Xidian University, 2016.

[11]
任浩. 迫击炮照明弹下弹体内腔改进利用的研究[J]. 弹箭与制导学报, 1994(3): 56-64.

REN H. Research on the improvement and utilization of the inner cavity of mortar illuminating shells[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 1994(3): 56-64.

[12]
杨绍卿. 末敏弹系统理论[M]. 西安: 陕西科学技术出版社, 2009.

YANG S Q. Terminal sensing munition system theory[M]. Xi'an: Shaanxi Science and Technology Press, 2009.

[13]
杨绍卿. 灵巧弹药工程[M]. 北京: 国防工业出版社, 2010.

YANG S Q. Smart munition engineering[M]. Beijing: National Defense Industry Press, 2010.

[14]
梁建峰. 末敏子弹扫描平台结构特点研究[D]. 南京: 南京理工大学, 2007.

LIANG J F. The Research of the structure of bullets and stable scanning parameters[D]. Nanjing: Nanjing University of Science and Technology, 2007.

[15]
刘东, 张红林, 王波. 动态故障树分析方法[M]. 北京: 国防工业出版社, 2013.

LIU D, ZHANG H L, WANG B. Methodologies of dynamic fault trees analysis[M]. Beijing: National Defense Industry Press, 2013.

[16]
西北工业大学机械原理及机械零件教研室. 机械设计[M]. 北京: 高等教育出版社, 1960.

Teaching and Research Section of Mechanical Principles and Machine Parts, Northwestern Polytechnical University. Mechanical design[M]. Beijing: Higher Education Press, 1960.

[17]
高向东. 理论力学[M]. 北京: 清华大学出版社, 2024.

GAO X D. Theoretical mechanics[M]. Beijing: Tsinghua University Press, 2024.

[18]
徐灏. 机械设计手册[M]. 北京: 机械工业出版社, 1995.

XU H. Machine design handbook[M]. Beijing: China Machine Press, 1995.

[19]
王仲仁. 弹性与塑性力学基础[M]. 哈尔滨: 哈尔滨工业大学出版社, 1996.

WANG Z R. Fundamentals of elasticity and plasticity mechanics[M]. Harbin: Harbin Institute of Technology Press, 1996.

[20]
BROOKS C R, CHOUDHURY A. Failure analysis of engineering materials[M]. New York: McGraw-Hill, 2002.

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