某坦克炮连续射击温升对身管变形影响
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摘要
针对连续射击过程中某105mm坦克炮在温度场作用下身管变形问题,以起落部分(含后坐)为研究对象,在ANSYS平台中建立了瞬态动力学有限元分析模型,进行了两种载荷工况条件下的动态响应特性对比分析,着重考察炮口高低方向位移响应情况,获得了连续射击过程中身管变形规律.研究结果表明:对于初始炮口角分别为0°和3′两种角度,在5连发、10连发和15连发射击结束的三个时刻,炮口高低位移均分别约为0.42mm,0.67mm和0.84mm;轴向位移均分别约为1.74mm,2.54mm和3.00mm;炮口端面高低方向转角均分别约为0.28′,0.45′和0.56′.随着5连发射击组数的增加,炮口高低方向、轴向的变形和端面高低方向转角随之增大,需要进行实时修正来保证射击精度.研究结果可为改善坦克炮身管制造工艺及提高射击精度提供理论参考依据.
The barrel of a certain 105 mm tank gun was deformed under temperature field in the course of continuous firing.Transient dynamics finite element analysis model based on landing gear which includes backseat was established in the platform of ANSYS software.Characteristics of dynamic responses under two kinds of load conditions were compared and the displacement response of gun muzzle in high-low direction was observed carefully.The rules of deformation of the barrel in the course of continuous firing were obtained.The research results illustrate that at the end of 5,10 and 15 times continuous shooting,high-low displacements are 0.42 mm,0.67 mm and 0.84 mm;axial displacements are 1.74 mm,2.54 mm and 3.00 mm;high-low rotation angles are 0.28′,0.45′and 0.56′under two kinds of initial muzzle angles of 0°and 3′.The deformation in high-low and axial direction and rotation angle of face of gun muzzle increases with the number of firing group which contains 5 shoots and the real time correction is necessary to guarantee shooting accuracy.The results can provide a reference to improve manufacturing processes of barrel and shooting accuracy of the tank gun.
The barrel of a certain 105 mm tank gun was deformed under temperature field in the course of continuous firing.Transient dynamics finite element analysis model based on landing gear which includes backseat was established in the platform of ANSYS software.Characteristics of dynamic responses under two kinds of load conditions were compared and the displacement response of gun muzzle in high-low direction was observed carefully.The rules of deformation of the barrel in the course of continuous firing were obtained.The research results illustrate that at the end of 5,10 and 15 times continuous shooting,high-low displacements are 0.42 mm,0.67 mm and 0.84 mm;axial displacements are 1.74 mm,2.54 mm and 3.00 mm;high-low rotation angles are 0.28′,0.45′and 0.56′under two kinds of initial muzzle angles of 0°and 3′.The deformation in high-low and axial direction and rotation angle of face of gun muzzle increases with the number of firing group which contains 5 shoots and the real time correction is necessary to guarantee shooting accuracy.The results can provide a reference to improve manufacturing processes of barrel and shooting accuracy of the tank gun.
引文
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[15]刘建军,陈红军.身管弯曲对射击精度影响及修正模型研究[J].舰船电子工程,2011,31(7):155-157.Liu Jianjun,Chen Hongjun.Research on the influence and correction model of tube curve error to firing accuracy[J].Ship Electronic Engineering,2011,31(7):155-157.(in Chinese)
[16]徐达,罗业,范文博.火炮身管传热数值模拟及温度分布规律[J].装甲兵工程学院学报,2016,30(6):50-54.Xu Da,Luo Ye,Fan Wenbo.Numerical simulation of heat transfer and temperature distribution of artillery barrel[J].Journal of Academy of Armored Force Engineering,2016,30(6):50-54.(in Chinese)
[2]李鹏辉,李强,李世康.射速和射击方式对速射火炮身管温度的影响[J].中北大学学报(自然科学版),2017(6):623-627.Lo Penghui,Li Qiang,Li Shikang.Effects of firing rates and shooting criterions on the barrel temperature of rapid-firing gun[J].Journal of North University of China(Natural Science Edition)2017(6):623-627.(in Chinese)
[3]赵金辉,何忠波,傅建平,等.火炮发射过程中身管温度场及弯曲度的有限元计算[J].火力与指挥控制,2011,36(5):106-109.Zhao Jinhui,He Zhongbo,Fu Jianping,et al.Finite element calculation of barrel's temperature field and flexure in gun fire condition[J].Fire Control&Command Control,2011,36(5):106-109.(in Chinese)
[4]朱文芳,王育维,郭映华,等.某火炮身管温度仿真计算及其影响因素分析[J].火炮发射与控制学报,2016,37(4):58-62.Zhu Wenfang,Wang Yuwei,Guo Yinghua,et al.Temperature simulation calculation and analysis of influential factors of a certain gun barrel[J].Journal of Gun Launch&Control,2016,37(4):58-62.(in Chinese)
[5]胡志刚,赵建波.速射身管发射状态下的温度场及热应力的有限元分析[J].弹箭与制导学报,2006,26(s3):555-558.Hu Zhigang,Zhao Jianbo.Temperature field and thermal stress analysis by FEM for barrel in rapid fire condition[J].Journal of Projectiles,Rockets,Missiles and Guidance,2006,26(s3):555-558.(in Chinese)
[6]彭克侠,刘树华,曹广群,等.基于温度场作用环境温度对身管弯曲分析[J].计算机仿真,2015,32(10):5-8.Peng Kexia,Liu Shuhua,Cao Guangqun,et al.Flexure analysis of gun barrel based on temperature field of different environment[J]. Computer Simulation,2015,32(10):5-8.(in Chinese)
[7]Xu D,Luo Y,Fan W.The temperature field pattern of small caliber automatic gun[C]∥International Conference on Sensors,Mechatronics and Automation,2016(136):551-556.
[8]彭克侠,刘树华,曹广群,等.某火炮身管温度场分析[J].火力与指挥控制,2015,40(11):80-83.Peng Kexia,Liu Shuhua,Cao Guangqun,et al.Temperature field analysis of gun barrel[J].Fire Control&Command Control,2015,40(11):80-83.(in Chinese)
[9]郝丙飞,王红岩,芮强.坦克火炮身管模态分析及试验验证[J].兵器装备工程学报,2017(10):74-78.Hao Bingfei,Wang Hongyan,Rui Qiang.Modal analysis and experimental verification of tank gun based on FEM method[J].Journal of Ordnance Equipment Engineering,2017(10):74-78.(in Chinese)
[10]殷军辉,秦俊奇,马春庭,等.小口径高射速火炮身管弯曲计算仿真系统设计[J].兵工自动化,2007,26(12):33-36.Yin Junhui,Qin Junqi,Ma Chunting,et al.Simulation system design of Barrel's flexure calculation for minor-caliber rapid-firing gun[J].Ordnance Industry Automation,2007,26(12):33-36.(in Chinese)
[11]傅建平,何忠波,赵金辉,等.大口径火炮身管热弯曲计算与试验[J].军械工程学院学报,2011,23(6):32-35.Fu Jianping,He Zhongbo,Zhao Jinhui,et al.Calculation and test of large caliber gun Barral's thermal bending[J].Journal of Ordnance Engineering College,2011,23(6):32-35.(in Chinese)
[12]袁威.坦克炮口弯曲变形量自动测量装置[J].电子制作,2017(21):60-61.Yuan Wei.Automatic measuring device for the bending deformation of tank muzzle[J].Practical Electronics,2017(21):60-61.(in Chinese)
[13]何忠波,赵金辉,傅建平,等.火炮身管温差热弯曲的仿真与计算[J].火炮发射与控制学报,2010(1):34-38.He Zhongbo,Zhao Jinhui,Fu Jianping,et al.Simulation and calculation of temperature difference hot flexibility in gun barrel[J].Journal of Gun Launch&Control,2010(1):34-38.(in Chinese)
[14]罗来科,朱英贵.坦克炮身管温度变化对射击精度的影响[J].火力与指挥控制,2010,35(3):75-77.Luo Laike,Zhu Yinggui.Influence of the temperature field of tank gun barrel on firing accuracy[J].Fire Control&Command Control,2010,35(3):75-77.(in Chinese)
[15]刘建军,陈红军.身管弯曲对射击精度影响及修正模型研究[J].舰船电子工程,2011,31(7):155-157.Liu Jianjun,Chen Hongjun.Research on the influence and correction model of tube curve error to firing accuracy[J].Ship Electronic Engineering,2011,31(7):155-157.(in Chinese)
[16]徐达,罗业,范文博.火炮身管传热数值模拟及温度分布规律[J].装甲兵工程学院学报,2016,30(6):50-54.Xu Da,Luo Ye,Fan Wenbo.Numerical simulation of heat transfer and temperature distribution of artillery barrel[J].Journal of Academy of Armored Force Engineering,2016,30(6):50-54.(in Chinese)