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以122mm钢制药筒装药为研究对象,开展了不同热通量下钢制药筒装药烤燃实验及数值模拟研究。以石膏粉替代发射药,通过烤燃实验研究了122mm钢制药筒内置石膏粉在不同热通量下的温升曲线、温升过程中的最高温度点及其达到发射药热点火温度的时间,并与数值模拟结果对比,得到一定程度上符合较好的结果。通过对数值模拟模型及结果的合理性分析,对122mm钢制药筒内置9/7发射药在不同热通量下的烤燃情况进行了数值模拟,得到不同热通量下钢制药筒装药的燃爆点、燃爆温度及燃爆时间,并得到燃爆温度及燃爆时间与环境热通量的关系,以其为参考,对弹药的日常储运安全及消防安全具有一定的指导意义。
Taking 122mm steel cartridge charge as the research object, experiments and numerical simulations on the burning of steel cartridge under different heat fluxes were carried out. By gypsum powder instead of propellants, the temperature rise curve of 122mm steel tube built-in gypsum powder under different heat fluxes, the highest temperature point in the process of temperature rise and the time of reaching the ignition ignition temperature of the propellant, And compared with the numerical simulation results, to some extent, in line with better results. Based on the numerical simulation of the model and the reasonable analysis of the results, the firing situation of the 9/7 projectile in a 122mm steel cartridge under different heat fluxes was numerically simulated, and the effects of different heat fluxes on the charge of the steel cartridge The explosion temperature, the explosion temperature and the explosion time, and obtains the relationship between the explosion temperature and the explosion time and the environmental heat flux. It takes some guidance for the daily storage, transportation and fire safety of the ammunition.