| 田中旺,宁变芳,牛兰杰,李世腾,刘军,赵旭.基于发射环境炮–弹–引耦合仿真的中大口径加榴炮机械触发引信失效分析[J].装备环境工程,2022,19(11):1-9. TIAN Zhong-wang,NING Bian-fang,NIU Lan-jie,LI Shi-teng,LIU Jun,ZHAO Xu.Failure Analysis of Mechanical Trigger Fuze of Medium and Large Caliber Gun-howitzer Based on RifledGun Barrel-Projectile-FuzeCoupling Simulation in Launching Environment[J].Equipment Environmental Engineering,2022,19(11):1-9. |
| 基于发射环境炮–弹–引耦合仿真的中大口径加榴炮机械触发引信失效分析 |
| Failure Analysis of Mechanical Trigger Fuze of Medium and Large Caliber Gun-howitzer Based on RifledGun Barrel-Projectile-FuzeCoupling Simulation in Launching Environment |
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| DOI：10.7643/issn.1672-9242.2022.11.001 |
| 中文关键词: 中大口径加榴炮 机械触发引信 安全系统 高动态发射环境 炮–弹–引耦合模型 仿真 响应特性 失效中图分类号:TJ33 文献标识码:A 文章编号:1672-9242(2022)11-0001-09 |
| 英文关键词:medium and large calibregun-howitzer mechanical trigger fuze safety and arming device high dynamic launch environment numerical modelof rifled gun barrel-projectile-fuze simulation response characteristics failure |
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| Author | Institution |
| TIAN Zhong-wang | Scienceand Technology on Electromechanical Dynamic Control Laboratory, Xi'an 710065, China |
| NING Bian-fang | Northwest Institute of Mechanical and Electrical Engineering, Shaanxi Xianyang 712099, China |
| NIU Lan-jie | Scienceand Technology on Electromechanical Dynamic Control Laboratory, Xi'an 710065, China |
| LI Shi-teng | Scienceand Technology on Electromechanical Dynamic Control Laboratory, Xi'an 710065, China |
| LIU Jun | Northwest Institute of Mechanical and Electrical Engineering, Shaanxi Xianyang 712099, China |
| ZHAO Xu | Scienceand Technology on Electromechanical Dynamic Control Laboratory, Xi'an 710065, China |
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| 中文摘要: |
| 目的 研究高动态发射环境中大口径加榴炮机械触发引信及其内部典型机构的响应特性和底层失效原因。方法 建立炮–弹–引耦合数值模型，开展0号装药、1号装药、0.4'装填角和身管中等程度磨损等4种工况下的动力学仿真，对比不同工况下引信典型部位的响应特性。结果 装药量和火炮身管磨损量是引信典型部位载荷响应的主要影响因素，身管磨损量是弹丸出炮口姿态角的主要影响因素。身管中期磨损条件下，引信夹板部位膛内径向过载响应峰值达2 498.4g，为初始状态的6.1倍；回转体轴响应峰值达4 296.1g，为初始状态的1.5倍；弹丸出炮口俯仰角达0.4°，为初始状态的4.4倍。试验验证结果表明，典型特征参量的仿真模拟误差不大于5%。结论 弹丸发射过程中，远离弹轴的引信安全系统轴类零件会承受更大的轴向载荷冲击和径向多维度载荷冲击，更容易导致与夹板配合的轴孔结合处发生失效。火炮身管磨损会导致榴弹配用引信在内弹道和出炮口承受更高的径向过载，以更大的姿态角进入外弹道飞行，是中大口径加榴炮机械触发引信外弹道飞行章动角增大的主要因素之一。 |
| 英文摘要: |
| The objective of this paper is to study the response characteristics and failure reasons of mechanical trigger fuze and its typical mechanisms in high dynamic launching environment of medium and large calibregun-howitzer.By establishing the numerical modelofrifled gun barrel-projectile-fuze, the dynamics simulation was carried out under four working conditions, such asprojectilecharge ofNo.0, projectilecharge ofNo.1, loading angle of0.4’and moderatewear degree of gunbarrel, andthe response characteristics of typical parts of fuze under different working conditions were compared.The simulationresults showedthatthe projectile charge and wear degreeof gun barrelweremain factors affecting the load response of typical parts of fuze, and the wear degreeof gun barrelwasmain factor affecting the attitude angle when projectile exiting muzzle.Under condition of moderate wear of gunbarrel, the peak value of radial overload response at fuze splint was2498.4g, which was6.1 times of the initial condition.The peak response of fuze rotating body shaft was4296.1g, which was1.5 times of the initial state.And the pitch angle of projectile whenexiting muzzlewas 0.4°, which was 4.4 times of the initial state.The experimental results showed the simulation error of typical characteristic parameters was less than 5%.Itwas concluded that shaft parts of safety and arming device far away from the projectile shaft wouldbear larger axial overload impact and radial multi-dimensional overload impactduring the launch of projectile, which was more likely to lead to failure of the joint of axle hole with splint.The wear degree of gun barrel would cause the projectilefitted with fuze to bear higher radial overloads in internal ballistic and out of muzzle,andto enter external ballistic with larger attitude angle, which was one of the main factors for increase of flight nutation angle whenmechanical trigger fuze of medium and large caliber gun-howitzerflighting in external ballistic. |
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