含能颗粒床颗粒间应力对动态破碎的影响  

Influence of the Inter-Granular Stress in Energetic Particle Bed on Dynamic Grain Fracture

作　　者：翁春生[1] 金志明[1] 邹瑞荣[1] 

机构地区：[1]南京理工大学动力工程学院,南京210094

出　　处：《燃烧科学与技术》2005年第1期6-9,共4页Journal of Combustion Science and Technology

基　　金：国家自然科学基金资助项目(59906005).

摘　　要：利用高低压发射装置,测定了含能颗粒床在不同环境温度下动态撞击与动态挤压的破碎程度;利用动态压力传感器,测定了颗粒床颗粒间挤压应力与撞击速度之间的关系;提出了表征含能颗粒床破碎程度的破碎度概念;通过大量的实验数据分析,给出了含能颗粒床破碎度随挤压应力和温度变化的实验拟合关系式.The grain fracture of energetic particle bed as a result of dynamic impact and dynamic compression at different temperature was measured by using a high-low pressure launch set. The relation between inter-granular stress and impact velocity were measured by using dynamic pressure transducer. The fracture degree was presented to denote the degree of grain fracture in energetic particle bed. By means of analysis many experimental data, the experimental approximation to fracture degree of dynamic inter-granular stress and temperature was given.

关 键 词：燃烧 两相流 颗粒床 颗粒间应力 颗粒破碎 

分 类 号：TJ013.1[兵器科学与技术—兵器发射理论与技术]