发射装药保温时间的模拟计算

Simulation Research of the Time of the Charge Temperature Conditioning

为得到弹药及其相关部件保温时的准确保透时间,用热传导理论对发射装药保温过程中的传热特性进行分析,通过传热学计算和测试手段确定有关参数。利用三维实体建模软件Solidworks建立发射装药实体模型,通过ANSYS有限元模拟分析软件对发射装药内部温度的传递变化规律进行模拟,并进行了试验验证,得到发射装药温度场分布与保温时间的关系及发射装药保透所需时间。结果证明,现行军标规定的保温时间确有很大的压缩空间。

In order to gain the accurate time to condition fullness, the characteristic of heat transfer of the charge process was analyzed based on the theory of heat transfer. With the help of the calculation of heat transfer and the test,the relevant parameters were determined. The model of the charge was established by 3D model software Solidworks. The change law of the chargers internal temperature was simulated by ANSYS, the finite element simulation analysis software ,and proved by test. The relation of the distribution of chargers temperature field and the time of temperature conditioning of the charge and the time required to condition fullness were obtained, approving that the time of the ammunition temperature conditioning used by national military standards of china can be compressed greatly.