【摘要】 针对某平衡炮武器系统高、低温内弹道性能异常的问题,建立了平衡炮的内弹道方程,并计算了其常、高、低温内弹道性能。通过对内弹道性能计算值与试验结果的对比,找出了造成低温性能异常的原因是发射药片因低温脆性在点火过程产生的严重破碎,高温性能异常的原因是发射药片因高温变软相互黏结导致初始燃面变小。这两种现象及其随机性影响了初速或然误差,尤其是低温下的药片破碎会给发射安全性带来隐患,应更换温度性能较好的发射药。更多还原

【Abstract】 The reasons of abnormal interior ballistic performance of an equilibrium launcher at high and low temperature are analyzed.Interior ballistic equations of an equilibrium launcher are established,its interior ballistic performance is computed at normal,high and low temperature respectively.By analyzing the computation and test results and test phenomenon,pointing out that abnormal performance at low temperature is caused by the severe fracture of propellant produced in ignition process and the brittleness of propellant at low temperature.The abnormal performance at high temperature is caused by the decrease of initial burning area because of propellant softening at high temperature and felting of propellant patches.The two phenomena and their randomicity affect the probable error of muzzle velocity,especially the propellant fracture at low temperature may be the hidden trouble to launch safety,considering that the propellant of the weapon system should be replaced by another material with good temperature performance.更多还原