坦克底盘角振动对火炮射击精度影响机理研究

摘要

In real vehicle test,it was founded that hitting probability would decrease greatly while tank chassis’running speed got to a certain value. Aiming at this question,its influencing mathematical model is established to calculate firing error caused by tank chassis’angular vibration. Basing on the data from real vehicle test,the firing errors resulte from tank chassis’angular vibration during firing delay time is analyzed comprehensively. Research based on test data showed that both tank chassis’ angular velocity and its attitude angle variation would increase with the increasing of firing delay time under the same tank running velocity. Within the same shooting delay time,tank chassis’angular velocity,attitude angle variation and shooting error will rise with the tank’s running speed increasing too. Shooting error in the target distance caused by shooting angle deviation is 3-5 times which caused by the projectile’s lateral velocity. Therefore firing angle deviation,which will rise with the rising of tank chassis’running speed,is the main reason for limiting to tank’s moving shooting speed.%实车试验表明，在行进间射击试验时，当车辆超过一定车速（行进间射击车速）时，射击精度或射击命中率会发生大幅度的下降。针对这个问题，建立了坦克底盘角振动导致的射击偏差的数学模型；并结合实车试验数据，对射击延迟时间内底盘角振动造成的火炮射击偏差进行了全面分析。分析研究表明：在相同的行驶车速条件下，车辆底盘角速度、姿态角变化量随着射击延迟时间的增大而增大；在相同的射击延迟时间内，车辆底盘角速度、姿态角变化量与射角偏差随着行驶车速的增大而增大；其中射角偏差引起的目标距离偏差是弹丸横向速度导致的目标距离偏差的3倍~5倍。因此，随着行驶车速增加而增加的射角偏差增大是行进间射击车速受限的主要原因。