摘要
针对惯性输弹机在输弹过程中弹丸姿态的不稳定性会影响输弹可靠性与一致性的问题,分析了影响弹丸姿态的因素,得到使弹丸姿态保持稳定的推弹点范围与最优推弹点的位置.通过分析输弹过程中弹丸能量转换与受力的情况,计算了不同射角时装填需要的最小推弹力,确定了弹丸在恒力推弹过程中姿态保持稳定的推弹点的范围.测试了试验过程中电机的转速,将测得的数据导入ADAMS中进行仿真.分析了仿真结果,并考虑了实际模型与理论计算、仿真模型的误差,对推弹力进行了修正.针对计算结果进行了输弹实验,结果表明:使得弹丸姿态保持稳定的推弹臂末端推弹点的位置范围是弹丸中心线下2mm以上,最优位置为弹丸中心线以上0.02m处.
The unstable projectile attitude of cannonball in the process of conveying cannonball affected the re- liability and consistency, the influencing factors were analysed and the range of push stretch point and optimal push stretch position were obtained to enable projectile attitude to keep stable. The minimum stretch of ram- ming was calculated under different firing angles through the analysis of cannonball attitude and the impact of the change of position to the cannonball attitude under different angles. The motor speed in experiment was tested, and the simulation in ADAMS was made with test data. Ramming force was modified by analyzing the silulaiton results and considering the error of theoretical model and actual measurement. The ramming experi- ment show that the range of position is 2 mm under the centre line of bullet and he best position is 0.02 m above the centre line of bullet.
出处
《中北大学学报（自然科学版）》
CAS
北大核心
2014年第1期25-28,40,共5页
Journal of North University of China(Natural Science Edition)
