TATB对熔铸炸药烤燃过程传热及响应特性的影响研究

Effect of TATB on Heat Transfer and Response Properties of Cast Explosivese During Roasting

为提高弹药安全性,研究TATB组分含量对熔铸炸药烤燃过程传热及响应特性的影响规律。采用3D-Fluent软件对熔铸炸药烤燃过程开展仿真计算,预测不同TATB含量熔铸炸药烤燃过程的响应时间及温度,结合烤燃试验验证仿真预测炸药反应的准确性。结果表明,烤燃过程中炸药内部梯度化温度及应特性与介质的传热系数密切相关。TATB含量的增大能够通过改变烤燃条件下的响应温度和时间来提高炸药的热安全性,且通过仿真计算方法预测炸药响应温度和时间可靠性较好。

In order to improve the safety of ammunition,the effect of TATB content on the heat transfer and response properties of cast explosive during the roasting was studied.The 3D-Fluent software was used to simulate the roasting process of cast explosive.The response time and temperature of explosive with different TATB content were predicted,and the accuracy of the simulation was verified by the cook-off test.The results showed that the gradient temperature and response properties of the explosive were closely related to the heat transfer coefficient of the medium.The increase of TATB content could improve the thermal safety of explosive by changing the response temperature and time under the roasting condition.Moreover,the reliability of predicting explosive’s response temperature and time by the method of simulation calculation was good.