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发射药床挤压破碎的物理仿真是火炮发射装药发射安全性研究的关键技术。本文研制了发射药床挤压破碎物理仿真试验装置。用半密闭爆发器作为压缩动力源 ,其可控性使该装置能物理仿真各种火炮发射装药弹底药床点燃前所处的力学环境。用温度远远低于火药气体的惰性气体压缩被模拟的药床 ,既保证了物理仿真的真实性 ,又有效保护了挤压破碎后的药粒不被点燃。多次试验再现了膛内发射药床的力学环境和挤压破碎状况。该装置可用于研究发射药床的挤压破碎规律。该试验装置工作可靠 ,可操作性好 ,解决了发射装药发射安全性研究的一个关键问题
The physical simulation of shot extrusion crushing is the key technology in the research on the safety of launching propellants. In this paper, the launch of the pharmaceutical extrusion crushing physical simulation test device. Semi-hermetic bursts are used as the compression power source. Its controllability enables the device to physically simulate the mechanical environment in which various artillery launches charge bottom medicine beds before ignition. Compressing the simulated drug bed with the inert gas whose temperature is much lower than that of the gunpowder gas not only ensures the authenticity of the physical simulation but also effectively protects the squeezed and broken medicine particle from being ignited. Repeated tests reproduce the mechanical environment of the breech injection bed and crushing conditions. The device can be used to study the extrusion crushing law. The experimental device is reliable and has good operability and solves a key problem of launching safety of launching charge