GAP/CL-20推进剂在快速热刺激下的自着火特性  

Auto-ignition Characteristics of GAP/CL-20 Propellant under Rapid Thermal Stimulation

作　　者：余涛 杨猛 麦棹铭 孔祥东 汤成龙[1] 武毅 YU Tao;YANG Meng;MAI Zhao-ming;KONG Xiang-dong;TANG Cheng-long;WU Yi(School of Energy and Power Engineering,Xi′an Jiaotong University,Xi′an 710065,China;School of Aerospace Engineering,Beijing Institute of Technology,Beijing 100085,China)

机构地区：[1]西安交通大学能源与动力工程学院,陕西西安710065 [2]北京理工大学宇航学院,北京100085

出　　处：《火炸药学报》2023年第9期847-854,I0003,共9页Chinese Journal of Explosives & Propellants

基　　金：博士后创新人才支持计划(No.BX20220250)。

摘　　要：为了探究不同温度与压强对GAP/CL-20推进剂安全性能的影响,采用快速压缩机实验平台并结合高速成像以及动态压强采集技术对GAP/CL-20推进剂在快速热刺激下的自着火行为进行分析,并得出其相应的自着火边界。结果表明,GAP/CL-20推进剂样品的燃烧分为热解与着火两个阶段,且整体呈现出逐层燃烧并剥离的特点;样品的右侧面与棱角位置则会由于压缩过程中气体扰动对换热的影响而优先于其他位置着火;随着温度与压强的升高,GAP/CL-20推进剂的着火延迟期与燃烧持续期缩短,压强上升提前;其临界着火温度和燃烧速度均随着压强的升高而降低,但达到一定压强后下降速度将会放缓。In order to explore the influence of different temperatures and pressures on the safety performance of GAP/CL-20 propellant,auto-ignition behaviors of GAP/CL-20 propellant under rapid thermal stimulation were studied by using high-speed imaging and dynamic pressure recording in rapid compression device,and the auto-ignition boundary of GAP/CL-20 propellant was obtained.The results show that the combustion of GAP/CL-20 propellant can be divided into two stages:pyrolysis and ignition,and it has the characteristics of layer-by-layer combustion and peeling.The right side of the sample and the angular position would be preferentially ignited due to the influence of gas disturbance on heat transfer during compression.Besides,the ignition delay time and combustion duration of GAP/CL-20 propellant decrease,and the pressure rise is advanced with an increase in temperature and pressure.The critical ignition temperature and burning rate decrease with increasing of pressure,but the decrease rate will slow down when the pressure reaches to a certain level.

关 键 词：物理化学 快速压缩机 GAP/CL-20推进剂 自着火行为 着火边界 着火延迟期 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] V512[航空宇航科学与技术—航空宇航推进理论与工程]