组合式火箭爆破器系统飞行性算法研究
|
摘要
为提高爆炸带的展直率,确保火箭爆破器的破障效果,建立二维有限质点模型对火箭爆破器系统的飞行特性进行研究。根据力学方程、运动方程和几何连续方程,通过时间差分法对各质点的力学参数进行数值计算,并结合实验工况对火箭爆破器系统在空中飞行的力学特性进行计算分析。结果表明:在主动段中,火箭拖拽爆炸带加速运动,爆炸带保持直线拉直状态;爆炸带全部拉出后,由于阻力伞的作用,爆炸带的内力较大,仍能维持在展直状态;进入被动段后,随着火箭及爆炸带速度的下降,阻力伞对爆炸带的拉力随之下降,爆炸带在越过最高点后,下落的阶段容易发生弯曲。
In order to improve the elongation of explosive belt and ensure the effect of the rocket explosive device in breaking barriers,the flight characteristic of the rocket explosive device was studied by establishing a two-dimensional finite particle model.According to mechanical equations,motion equations and geometric continuity equations,the mechanical parameters of each particle were obtained by temporal difference method.The flying mechanical properties of the rocket explosive device was calculated and discussed combined with test conditions.The results showed that the explosive belt accelerated with rocket dragging and it maintained straight in boost phase.After the explosive belt was dragged out,since the function of the drag parachute,the explosive belt remained at a high level of internal force and it still maintained a straightened state.When the rocket entered the passive section,with the decline of rocket and explosive belt speed,the pulling force of drag parachute to explosive belt falled.So the explosive belt was prone to bend after it crossed the highest point during dropping.
In order to improve the elongation of explosive belt and ensure the effect of the rocket explosive device in breaking barriers,the flight characteristic of the rocket explosive device was studied by establishing a two-dimensional finite particle model.According to mechanical equations,motion equations and geometric continuity equations,the mechanical parameters of each particle were obtained by temporal difference method.The flying mechanical properties of the rocket explosive device was calculated and discussed combined with test conditions.The results showed that the explosive belt accelerated with rocket dragging and it maintained straight in boost phase.After the explosive belt was dragged out,since the function of the drag parachute,the explosive belt remained at a high level of internal force and it still maintained a straightened state.When the rocket entered the passive section,with the decline of rocket and explosive belt speed,the pulling force of drag parachute to explosive belt falled.So the explosive belt was prone to bend after it crossed the highest point during dropping.
引文
[1]郭俊杰.反坦克地雷(上)[J].金属世界,2001(5):8-9.GUO Jun-jie.Antitank mine(VolumeⅠ)[J].Metal World,2001(5):8-9.
[2]郭俊杰.反坦克地雷(下)[J].金属世界,2001(6):6-7.GUO Jun-jie.Antitank mine(Volume II)[J].Metal World,2001(6):6-7.
[3]段志坚.布雷车发展概述[J].汽车运用,2006(3):11-13.DUAN Zhi-jian.The overview of mine car′s development[J].Auto Application,2006(3):11-13.
[4]杨旭升,梁秋祥,董德坤,等.基于车载式火箭爆破带破冰破凌性能试验研究[J].工程爆破,2014,20(3):29-32.YANG Xu-sheng,LIANG Qiu-xiang,DONG De-kun,et al.Experimental study of the ice and ice flood broken by the vehicle-mounted rocket explosion belt[J].Engineering Blasting,2014,20(3):29-32.
[5]吴小平,郑友祥,丘光申.拖缆火箭弹道计算研究[J].弹道学报,1995,7(1):41-49.WU Xiao-ping,ZHENG You-xiang,QIU Guang-shen.The study on ballistics calculation of line throwing rocket[J].Journal of Ballistics,1995,7(1):41-49.
[6]张登成,唐硕,苏新兵.拖缆对拖拽系统中飞行器动稳定性的影响[J].弹道学报,2008,20(2):41-44.ZHANG Deng-cheng,TANG Shuo,SU Xin-bing.Influence of towline on dynamic stability of vehicles in towing system[J].Journal of Ballistics,2008,20(2):41-44.
[7]张登成,唐硕.悬垂线理论在拖拽系统中的应用研究[J].飞行力学,2005,23(2):70-72.ZHANG Deng-cheng,TANG Shuo.Application of catenary theory to a towed air-launch system[J].Flight Dynamics,2005,23(2):70-72.
[8]张登成,唐硕.拖拽系统飞行过程仿真研究[J].计算机仿真,2004,21(5):24-27.ZHANG Deng-cheng,TANG Shuo.Research on simulation of towed air-launch system flight[J].Computer Simulation,2004,21(5):24-27.
[9]吴宏,王勇.柔性体的有限质点模型弹道计算研究[J].弹箭与制导学报,2006,26(3):9-12.WU Hong,WANG Yong.The study of ballistic calculation in finite particles model of flexible body[J].Journal of Projectiles,Rockets,Missiles and Guidance,2006,26(3):9-12.
[10]姜涛,詹发民,郑苗.基于有限元法的直列柔性爆破器材性能分析[J].工程爆破,2013,19(5):14-16,34.JIANG Tao,ZHAN Fa-min,ZHENG Miao.The performance analysis of flexible explosive material with linear charge based on finite element method[J].Engineering Blasting,2013,19(5):14-16,34.
[2]郭俊杰.反坦克地雷(下)[J].金属世界,2001(6):6-7.GUO Jun-jie.Antitank mine(Volume II)[J].Metal World,2001(6):6-7.
[3]段志坚.布雷车发展概述[J].汽车运用,2006(3):11-13.DUAN Zhi-jian.The overview of mine car′s development[J].Auto Application,2006(3):11-13.
[4]杨旭升,梁秋祥,董德坤,等.基于车载式火箭爆破带破冰破凌性能试验研究[J].工程爆破,2014,20(3):29-32.YANG Xu-sheng,LIANG Qiu-xiang,DONG De-kun,et al.Experimental study of the ice and ice flood broken by the vehicle-mounted rocket explosion belt[J].Engineering Blasting,2014,20(3):29-32.
[5]吴小平,郑友祥,丘光申.拖缆火箭弹道计算研究[J].弹道学报,1995,7(1):41-49.WU Xiao-ping,ZHENG You-xiang,QIU Guang-shen.The study on ballistics calculation of line throwing rocket[J].Journal of Ballistics,1995,7(1):41-49.
[6]张登成,唐硕,苏新兵.拖缆对拖拽系统中飞行器动稳定性的影响[J].弹道学报,2008,20(2):41-44.ZHANG Deng-cheng,TANG Shuo,SU Xin-bing.Influence of towline on dynamic stability of vehicles in towing system[J].Journal of Ballistics,2008,20(2):41-44.
[7]张登成,唐硕.悬垂线理论在拖拽系统中的应用研究[J].飞行力学,2005,23(2):70-72.ZHANG Deng-cheng,TANG Shuo.Application of catenary theory to a towed air-launch system[J].Flight Dynamics,2005,23(2):70-72.
[8]张登成,唐硕.拖拽系统飞行过程仿真研究[J].计算机仿真,2004,21(5):24-27.ZHANG Deng-cheng,TANG Shuo.Research on simulation of towed air-launch system flight[J].Computer Simulation,2004,21(5):24-27.
[9]吴宏,王勇.柔性体的有限质点模型弹道计算研究[J].弹箭与制导学报,2006,26(3):9-12.WU Hong,WANG Yong.The study of ballistic calculation in finite particles model of flexible body[J].Journal of Projectiles,Rockets,Missiles and Guidance,2006,26(3):9-12.
[10]姜涛,詹发民,郑苗.基于有限元法的直列柔性爆破器材性能分析[J].工程爆破,2013,19(5):14-16,34.JIANG Tao,ZHAN Fa-min,ZHENG Miao.The performance analysis of flexible explosive material with linear charge based on finite element method[J].Engineering Blasting,2013,19(5):14-16,34.