旋转稳定弹轴向加速度测量误差模型分析  

Measurement Error Model Analysis of Axial Acceleration for Rotational Stability Bomb

作　　者：杨慧娟[1,2] 黄铮 霍鹏飞 王超 

机构地区：[1]中北大学仪器科学与动态测试教育部重点实验室,太原030051 [2]中北大学信息与通信工程学院,太原030051 [3]西安机电动态控制重点实验室,西安710065

出　　处：《弹道学报》2013年第4期48-52,共5页Journal of Ballistics

基　　金：总装预研基金项目

摘　　要：为了准确分析加速度传感器的安装误差及横轴灵敏度对射程修正的影响,以六自由度刚体外弹道模型为基础,建立了弹丸轴向加速度理论模型,并通过公式推导及简化得到弹丸轴向加速度的输出误差公式,该项误差较大,与弹丸转速的平方近似成正比,比例系数C的获取是补偿该项误差的关键。仿真分析得到了简化模型与实际理论模型的误差曲线,验证了简化模型的正确性,研究结果为弹丸轴向加速度的精确测量提供了相应的理论基础。In order to accurately analyze the effect of installation error and transverse sensitivity on measure value for the acceleration sensor,theoretical model for the axial acceleration of projectile was established based on the rigid trajectory model of six degrees of freedom.By deducing and simplifying formulae,the theoretical error of the axial acceleration of projectile was obtained.The error is large,and the error is approximately proportional to the square of rotating speed of projectile.It is the key for compensating the error to obtain the scale factor C.By simulation,the error curves of simplified model and actual model were obtained,and the correctness of the simplified model was verified.The study provides corresponding theoretical foundation for accurately measuring the axial acceleration of projectile.

关 键 词：弹道修正 轴向加速度 误差分析 

分 类 号：TJ765[兵器科学与技术—武器系统与运用工程]