Detonation Shock Dynamics Calibration of JB-9014 Explosive at Low Temperature
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摘要: 爆轰冲击波动力学(Detonation Shock Dynamics,DSD)是目前研究爆轰波非理想传播的有效途径。利用DSD的广义几何光学模型,研究了大长径比药柱中爆轰波非理想传播现象,根据-30 ℃下直径为10~30 mm药柱的直径效应实验数据,利用遗传算法确定了低温下JB-9014钝感炸药的DSD参数。由DSD参数计算得到了JB-9014药柱中的定态波形和爆速,计算结果与实验结果符合。
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关键词:
- 钝感炸药 /
- 爆轰冲击波动力学方法 /
- 定态爆速 /
- 遗传算法
Abstract: Detonation shock dynamics (DSD) method is an effective way to study the non-ideal propagation of detonation waves. Using the generalized geometrical optics model of DSD, the non-ideal propagation of detonation waves is studied for explosive grain with high slenderness ratio. A computer code is developed to calibrate the DSD parameters for JB-9014 insensitive high explosive by genetic algorithm. Calibration data are obtained from measurements of the detonation velocities and detonation wave fronts in JB-9014 explosive at low temperature of -30 ℃, with diameters of 10-30 mm. The steady-state detonation velocities and detonation wave fronts predicted by these DSD parameters can fit the experimental data within the experimental uncertainty. -
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