为研究布撒集束筒中无伞无翼子弹药的空气动力学特性和标定影响集束筒中4枚子弹药轴向抛撒落点散布的各个要素,应用系统动力学和计算流体力学等方法对非轴对称子弹药弹体外形在低马赫数、高粘性下进行气动仿真,分析了其外在流场,获取了气动参数; 编写了弹道程序,分析并标定了抛撒过程中影响集束筒中4枚子弹药落点散布的要素,总结出了相关要素影响落点散布的规律。结果表明:抛撒高度、牵连速度、集束筒轴线与水平面夹角、抛撒速度对子弹药落点间距影响较大; 抛撒高度、子弹药牵连速度对子弹药落点间距散布均匀性影响较大; 集束筒轴线与水平面夹角对子弹落点区域中心位置影响较大。
Abstract
To study the aerodynamic characteristics and demarcate the influence factors on the ballistic fall points distribution of terminal sensitive projectile(TSP)without parachute or wing,the system dynamics and computational fluid dynamics were applied to simulate the TSP under low Mach number and high viscosity hypothesis.The flow field of TSP without parachute or wing was simulated separately.The ballistic program was edited,and the factors influencing fall-points distribution of four projectils in cluster barrel in the dispersion process were analyzed and demarcated.The factors influencing the ballistic fall points distribution of the parachute-bomb were studied,and the results were contrasted.The important factors influencing the space between of the points of fall are the height of throwing,embroil velocity,the angle between axes and level and throwing velocity.The important factors influencing the uniformity of the points of fall are throwing height and embroil velocity.The important factor influencing the center of the points of fall is the angle between axes and level.
关键词
气动特性 /
外弹道 /
落点散布
{{custom_keyword}} /
Key words
aerodynamic characteristics /
exterior trajectory /
distribution of fall points
{{custom_keyword}} /
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
参考文献
[1] 杨绍卿.灵巧子弹药工程[M].北京:国防工业出版社,2010.
YANG Shao-qing.Smart munition engineering[M].Beijing:National Defense Industry Press,2010.(in Chinese)
[2]舒敬荣,姜胜平,李明军,等.无伞双翼末敏弹稳态扫描段受力分析[J].弹道学报,2010,22(2):1-4.
SHU Jing-rong,JIANG Sheng-ping,LI Ming-jun,et al.Force and moment analysis for double win terminal sensing ammunition without parachute at stable scanning stage[J].Journal of Ballistics,2010,22(2):1-4.(in Chinese)
[3]孙传杰,卢永刚.一种无控子母弹落点散布分析[J].弹箭与制导学报,2010,30(1):109-111.
SUN Chuan-jie,LU Yong-gang.Analysis of submunition distribution of an unguided cluster munition[J].Journal of Projectiles,Rockets,Missile and Guidance,2010,30(1):109-111.(in Chinese)
[4]曾必强,姜春兰,王在成,等.伞弹系统落点散布影响因素分析[J].弹箭与制导学报,2010,30(1):105-108.
ZENG Bi-qiang,JIANG Chun-lan,WANG Zai-cheng,et al.Research on the ballistic fall point spread of the parachute-bomb system[J].Journal of Projectiles,Rockets,Missile and Guidance,2010,30(1):105-108.(in Chinese)
[5]王中原,史金光,李铁鹏.弹道修正中的控制算法[J].弹道学报,2011,23(2):19-21.
WANG Zhong-yuan,SHI Jin-guang,LI Tie-peng.Control method for trajectory correction[J].Journal of Ballistics,2011,23(2):19-21.(in Chinese)
{{custom_fnGroup.title_cn}}
脚注
{{custom_fn.content}}
