炮弹轴向加速度测量方法

炮弹轴向加速度是一维弹道修正引信进行射程修正的重要参数，为了消除传感器安装在远离炮弹质心的引信中而引起的离心加速度，采用艰加速度传感器纵向排列的方法检测炮弹质心轴向加速度，利用弹道方程生成随机弹道作为实际弹道进行了仿真分析，设计了测量装置，在弹丸飞出炮口的时刻，弹载加速度传感器开始采集上升阶段的弹丸轴向加速度，进而利用数值积分法计算出射程偏差量，将算法仿真得到的射程偏差量与理论值进行比较，证明该方法能够满足工程实现要求。

Trajectory Axial Acceleration Measurement

Axial acceleration is a key parameter for one-dimension trajectory correction. The accelerometer,located in the fuse and is away from the center of projectile gravity,brings centrifugal acceleration into the axial acceleration measurement result. In order to eliminate measurement bias,two accelerometers are longitudinally installed in the fuse to measure trajectory axial acceleration. Simulations are carried on by producing random trajectory from ballistic equations with random initial parameters. A measurement device is developed,two accelerometers begin to test the axial acceleration when trajectory just flying off the Bore,then predict range error is calculated based on axial acceleration. The comparison between simulation results and theoretical calculation show that this measurement method can reach the engineering requirements.