[1]钱明伟,王良明.雷达实测数据中弹丸阻力系数二元函数提取方法研究[J].南京理工大学学报(自然科学版),2009,(06):790-795.
 QIAN Ming-wei,WANG Liang-ming.Method for Extraction of Two-variable Function of Projectile Drag Coefficient from Radar Measured Data[J].Journal of Nanjing University of Science and Technology,2009,(06):790-795.
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雷达实测数据中弹丸阻力系数二元函数提取方法研究
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
期数:
2009年06期
页码:
790-795
栏目:
出版日期:
2009-12-30

文章信息/Info

Title:
Method for Extraction of Two-variable Function of Projectile Drag Coefficient from Radar Measured Data
作者:
钱明伟;王良明;
南京理工大学动力工程学院, 江苏南京210094
Author(s):
QIAN Ming-weiWANG Liang-ming
School of Power Engineering,NUST,Nanjing 210094,China
关键词:
空气动力学 弹丸 阻力系数 雷达数据处理 射表 弹道
Keywords:
aerodynamics projectiles drag coefficient radar data processing firing table trajectory
分类号:
TJ410.1
摘要:
针对高原射表编制问题,提出了随马赫数与海拔高度变化的弹丸阻力系数二元函数表达式和利用雷达测速曲线中提取阻力系数二元函数的方法。该方法以非均匀B样条函数作为拟合函数,使阻力系数的变化规律更接近真实情况。详细推导了提取二元阻力系数的具体算法,并提供了计算机程序框图。将对雷达实测数据进行处理得到的阻力系数用于弹道解算,与高原试验结果比较,在20°和50°射角下,传统方法与试验射程相差-1.30%和-2.28%,新方法相差-0.21%和-0.26%。按照新方法解算弹道,精度明显提高,该方法是实际可行的。
Abstract:
Aiming at the problem of the plateau firing table compilation,the expression of two-variable function of projectile drag coefficient varying with the mach number and altitude above sea level is presented in this paper.The method for the extraction of the two-variable function of projectile drag coefficient from radar data is also presented.The fitting function is the non-uniform B-spline,and the variety of projectile drag coefficient can be made closer to the actual situation.The computational technique for extraction of the two-variable function of projectile drag coefficient is derived and the computer program diagram is shown in the text.The projectile drag coefficient obtained by processing the radar measured data is used in a trajectory solver.The plateau firing result shows that under the firing angle of 20°and 50°,the differences of the calculation ranges of the traditional method and the experiment range are-1.30% and-2.28%,and those of the proposed method and the experiment range are-0.21% and-0.26%.By using the proposed method,the computational precision of trajectory of projectiles is improved.The illustration shows this method is feasible in practice.

参考文献/References:

[ 1] 郭锡福. 火控弹道模型理论及应用[M]. 北京: 国防工业出版社, 1997.
[ 2] 闫章更. 射表编拟技术[M]. 北京: 国防工业出版社, 2002.
[ 3] 王良明, 钱明伟. 高原环境对高炮外弹道特性的影响[ J]. 弹道学报, 2006, 18(1): 18-21.
[ 4] ChapmanCT, KirkDB. Method for extracting aero-dynamic coefficients from free-flight data[ J]. AIAA Journa,l 1970, 8(4): 753- 758.
[ 5] Qi Za-ikang, Laster D. Mult-i spline technique for the extraction of drag coeffidents from radar data[ J]. Journal of Beijing Institute ofTechnology( English ed-i tion), 1994, 3( 1): 33- 42.
[ 6] 徐劲祥, 祁载康, 林德福. 火箭炮射表编拟及发射诸元快速装定研究[ J]. 南京理工大学学报(自然科学版), 2004, 28( 4): 333-336.

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备注/Memo

备注/Memo:
作者简介: 钱明伟( 1962- ), 男,博士生, 主要研究方向: 兵器发射理论与技术, 外弹道理论及应用, 科研项目管理;
通讯作者:王良明( 1963- ), 男, 教授, 博士生导师, 主要研究方向: 新型弹箭弹道理论与技术, E- mail:lmwang802@163. com。
更新日期/Last Update: 2012-11-19