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以57高炮射击数据来检验发射药弹道性能参数(初速和膛压)的分布函数,根据合格品和堪用品的弹道性能允许界限和射击试验的样本均值及标准偏差,评估了11/7单基发射药的弹道可靠度。还通过提高温度老化该发射药,利用密闭爆发器模拟测试弹道性能多数的技术,获得这些多数的退化率和退化率温度系数,预测了20℃下不同储存年限的弹道性能可靠性置信下限。同时以两个温度下老化样品的射击结果来验证密闭爆发器的模拟测验结果。
The distribution function of projectile’s ballistic performance parameters (muzzle velocity and muzzle pressure) was tested with 57-gauge artillery firing data and the 11/7 single-sample was evaluated based on the ballistic performance allowable limits and the sample mean and standard deviation of the shot test Ballistic reliability of base propellant. Also by increasing the temperature aging of the propellant, the use of closed-end bursts to simulate the ballistic performance of most of the technology to obtain these most of the degradation rate and temperature coefficient of degradation rate, predicts the reliability of the reliability of different storage life at 20 ℃ confidence lower limit. At the same time, the results of the simulation of the closed-cell burst were verified by the shooting results of the aged samples at two temperatures.