大口径火炮膛线结构对滑动弹带弹丸膛内运动影响的数值分析
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摘要
以大口径身管火炮发射减旋滑动弹带制导弹药时弹丸-身管耦合系统为研究对象,基于弹塑性有限元理论,建立某大口径火炮线膛身管与制导炮弹耦合动力学有限元模型。数值计算了渐速膛线、等齐膛线、混合膛线(渐速膛线+等齐膛线)3种不同膛线形式和深、浅两种膛线深度条件下,制导炮弹在挤进阶段和膛内运动过程中的弹炮应力、挤进阻力以及弹炮动力学响应,获得了大口径火炮膛线结构对滑动弹带制导弹丸膛内运动的影响关系,为弹炮一体化设计提供了理论参考。
A projectile-barrel coupled system of large caliber gun for launching a guided projectile with sliding driving band is studied. A guided projectile-barrel coupled dynamic finite element model of some large caliber gun is established based on elastic and plastic finite element theory. The projectile stress,squeezing resistance,and dynamic response between projectile and barrel in the process of projectile squeezing into rifling grooves and the process of straight moving of guided projectile in bore considering increased twist rifling,uniform twist rifling and increasing-uniform combined rifling,as well as deep rifling and shallow rifling are calculated. The relationship between the rifling structure of large caliber gun and the motion of guided projectile in bore is obtained.
A projectile-barrel coupled system of large caliber gun for launching a guided projectile with sliding driving band is studied. A guided projectile-barrel coupled dynamic finite element model of some large caliber gun is established based on elastic and plastic finite element theory. The projectile stress,squeezing resistance,and dynamic response between projectile and barrel in the process of projectile squeezing into rifling grooves and the process of straight moving of guided projectile in bore considering increased twist rifling,uniform twist rifling and increasing-uniform combined rifling,as well as deep rifling and shallow rifling are calculated. The relationship between the rifling structure of large caliber gun and the motion of guided projectile in bore is obtained.
引文
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[2]张振辉,杨国来,葛建立.末制导炮弹膛内过载影响因素数值分析[J].四川兵工学报,2012,33(9):33-35.ZHANG Zhen-hui,YANG Guo-lai,GE Jian-li.Influnce factor analysis of terminal guided munition overload in bore[J].Journal of Sichuan Ordnance,2012,33(9):33-35.(in Chinese)
[3]Cordes J,Vega J,Carlucci D E,et al.Design accelerations for the army's excalibur projectile,ADA435761[R].NJ,US:Army Armament Research Development and Engineering Center,2006.
[4]Cordes J,Vega J,Carlucci D E,et al.Structural loading statistics of live gun firings for the army's excalibur projectile,ADA431877[R].NJ,US:Army Armament Research Development and Engineering Center,2005.
[5]孙河洋,马吉胜,李伟,等.坡膛结构变化对火炮内弹道性能影响的研究[J].兵工学报,2012,33(6):669-675.SUN He-yang,MA Ji-sheng,LI Wei,et al.Study on influence of bore structure on gun's interior ballistic performances[J].Acta Armamentarii,2012,33(6):669-675.(in Chinese)
[6]曾志银,马明迪,宁变芳,等.火炮身管阳线损伤机理分析[J].兵工学报,2014,35(11):1736-1742.ZENG Zhi-yin,MA Ming-di,NING Bian-fang,et al.Analysis of rifling land damage mechanism of gun barrel[J].Acta Armamentarii,2014,35(11):1736-1742.(in Chinese)
[7]马明迪,崔万善,曾志银,et al.基于有限元与光滑粒子耦合的弹丸挤进过程分析[J].振动与冲击,2015,34(6):146-150.MA Ming-di,CUI Wan-shan,ZENG Zhi-yin,et al.Analysis of engraving process of projectile based on the coupling of FEM and SPH[J].Journal of Vibration and Shock,2015,34(6):146-150.(in Chinese)
[8]刘雷,陈运生,杨国来.基于接触模型的弹炮耦合问题研究[J].兵工学报,2006,27(6):984-987.LIU Lei,CHEN Yun-sheng,YANG Guo-lai.A study on the projectile-barrel coupling based on contact model[J].Acta Armamentarii,2006,27(6):984-987.(in Chinese)
[9]葛建立,杨国来,陈运生,等.基于弹塑性接触/碰撞模型的弹炮耦合问题研究[J].弹道学报,2008,20(3):103-106.GE Jian-li,YANG Guo-lai,CHEN Yun-sheng,et al.A study on the projectile-barrel coupling based on contact model[J].Journal of Ballistics,2008,20(3):103-106.(in Chinese)
[10]孙全兆,杨国来,王鹏,等.某大口径榴弹炮弹带挤进过程数值模拟研究[J].兵工学报,2015,36(2):206-213.SUN Quan-zhao,YANG Guo-lai,WANG Peng,et al.Numerical research on rotating band engraving process of a large-caliber howitzer[J].Acta Armamentarii,2015,36(2):206-213.(in Chinese)
[11]谈乐斌,张相炎,管红根,等.火炮概论[M].北京:北京理工大学出版社,2005.TAN Le-bin,ZHANG Xiang-yan,GUAN Hong-gen,et al.Gun introduction[M].Beijing:Beijing Institute of Technology Press,2005.(in Chinese)
[12]张相炎.火炮设计理论[M].北京:北京理工大学出版社,2005.ZHANG Xiang-yan.Theory of gun design[M].Beijing:Beijing Institute of Technology Press,2005.(in Chinese)