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高速弹丸二维近距跟踪摄影方法建模仿真
引用本文:于纪言,王晓鸣,李文彬. 高速弹丸二维近距跟踪摄影方法建模仿真[J]. 弹道学报, 2006, 18(4): 12-15
作者姓名:于纪言  王晓鸣  李文彬
作者单位:南京理工大学,机械工程学院,南京,210094;南京理工大学,机械工程学院,南京,210094;南京理工大学,机械工程学院,南京,210094
摘    要:研究了一种利用2个伺服电机控制一面可旋转的反射镜进行二维跟踪摄影的方法.对二维近距跟踪摄影的原理建模,举例进行了仿真,分析了在不同拍摄距离及不同射角条件下伺服电机角加速度的变化规律,举例分析了定位误差的影响,对跟踪的初始加速方式进行了探讨.验证了二维跟踪摄影的可行性,得到100m摄距为最佳拍摄距离,此时水平跟踪拍摄范围可达200 m,满足误差要求并可在任意射角下拍摄.

关 键 词:高速弹丸  高速摄影  外弹道  建模  仿真
文章编号:1004-499X(2006)04-0012-04
收稿时间:2006-01-11
修稿时间:2006-01-11

Modeling and Simulation of Two-dimension Short Range Tracking Photography for High Speed Projectiles
YU Ji-yah,WANG Xiao-ming,LI Wen-bin. Modeling and Simulation of Two-dimension Short Range Tracking Photography for High Speed Projectiles[J]. Journal of Ballistics, 2006, 18(4): 12-15
Authors:YU Ji-yah  WANG Xiao-ming  LI Wen-bin
Affiliation:College of Mechanical Engineering, NUST, Nanjing 210094, China
Abstract:A method of two-dimension tracking photography with a rotary reflector controlled by two servomotors was studied. The principle of tracking photography for two-dimension high speed flight projectile at short range was modeled and simulated by taking examples. The variation rules of angular acceleration of servomotors was analyzed under the conditions of different photography distance and different firing angle. The effect of orientation error was analyzed, and the method of initial tracking acceleration was investigated. The feasibility of two-dimension tracking photography was proved. The best photography distance is fixed on 100 m and the tracking photography range is 200 m, and the accuracy is met. The photography can be taken accurately at any firing angle.
Keywords:hypervelocity projectile   high speed photography   exterior ballistics   modeling   simulation
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