【摘要】 弹体排气缓释结构是提升武器弹药热安全性的重要方法之一。文中基于弹体内炸药分解、燃烧引起的压强增长率与排气孔压强释放率之间的平衡关系,设计了一种弹体排气缓释结构,并利用自行设计的烤燃试验装置,以熔铸炸药RHT-1为研究对象,试验研究了慢速烤燃和火烧条件下排气缓释结构的作用效果。结果表明,排气缓释结构显著的降低了熔铸炸药火烧时的反应等级,同时延长了其慢速烤燃时的反应时间,相对地提高了熔铸炸药慢速烤燃时的安全性。研究结果可为弹药的装药设计提供参考。更多还原

【Abstract】 The safety of weapons to unplanned thermal stimuli,caused by fires or other heating sources,can be improved by venting of projectile body. One kind of venting was developed in this paper based on balance between pressure rise rate in warhead and pressure decay rate of venting equipment. To verify rationality of the proposed venting,some apparatuses of cook-off test for explosive were designed,the effects of venting equipment on the slow cook-off and fast cook-off tests for melt-cast explosive RHT-1 were studied,and the experimental results were compared with those of tests without venting equipment. It is shown that the reaction types of melt-cast explosive during fast cook-off test are significantly affected by the venting equipment,and the reaction time in slow cook-off test is delayed obviously by the venting. The obtained results can provide a foundation and reference for designing charge of warhead.更多还原