火炸药学报

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.

引言
1 试验
2 结果与讨论
3 结论

图1 快速压缩机装置示意图<br/>Fig.1 The schematic diagram of the rapid compression device

图1 快速压缩机装置示意图
Fig.1 The schematic diagram of the rapid compression device

图2 在3.0MPa和677.29K下GAP/CL-20推进剂样品的高速图像<br/>Fig.2 The high-speed images of GAP/CL-20 propellant samples at 3.0MPa and 677.29K

图2 在3.0MPa和677.29K下GAP/CL-20推进剂样品的高速图像
Fig.2 The high-speed images of GAP/CL-20 propellant samples at 3.0MPa and 677.29K

图3 在3.0MPa和677.29K下GAP/CL-20推进剂样品的压强演化<br/>Fig.3 The pressure evolution of GAP/CL-20 propellant samples at 3.0MPa and 677.29K

图3 在3.0MPa和677.29K下GAP/CL-20推进剂样品的压强演化
Fig.3 The pressure evolution of GAP/CL-20 propellant samples at 3.0MPa and 677.29K

图4 在3.0MPa和782.9K下GAP/CL-20推进剂样品的高速图像<br/>Fig.4 The high speed images of GAP/CL-20 samples at 3.0MPa and 782.9K

图4 在3.0MPa和782.9K下GAP/CL-20推进剂样品的高速图像
Fig.4 The high speed images of GAP/CL-20 samples at 3.0MPa and 782.9K

图5 在3.0MPa和782.9K下GAP/CL-20推进剂样品的压强演化<br/>Fig.5 The pressure evolution of GAP/CL-20 propellant samples at 3.0MPa and 789.2K

图5 在3.0MPa和782.9K下GAP/CL-20推进剂样品的压强演化
Fig.5 The pressure evolution of GAP/CL-20 propellant samples at 3.0MPa and 789.2K

图6 GAP/CL-20推进剂样品在3.0MPa和不同温度下的自着火高速图像<br/>Fig.6 The high-speed images of GAP/CL-20 propellant samples at 3.0MPa and different temperatures

图6 GAP/CL-20推进剂样品在3.0MPa和不同温度下的自着火高速图像
Fig.6 The high-speed images of GAP/CL-20 propellant samples at 3.0MPa and different temperatures

图7 在3.0MPa和不同EOC温度下GAP/CL-20推进剂样品的自着火高速图像<br/>Fig.7 The high-speed images of GAP/CL-20 propellant samples at 3.0MPa and different EOC temperatures

图7 在3.0MPa和不同EOC温度下GAP/CL-20推进剂样品的自着火高速图像
Fig.7 The high-speed images of GAP/CL-20 propellant samples at 3.0MPa and different EOC temperatures

图8 在3.0MPa和不同EOC温度下GAP/CL-20推进剂样品的压强演变<br/>Fig.8 The pressure evolution of GAP/CL-20 propellant samples at 3.0MPa and different EOC temperatures

图8 在3.0MPa和不同EOC温度下GAP/CL-20推进剂样品的压强演变
Fig.8 The pressure evolution of GAP/CL-20 propellant samples at 3.0MPa and different EOC temperatures

图9 GAP/CL-20推进剂样品在不同温度和压强下的高速图像<br/>Fig.9 The high-speed images of GAP/CL-20 propellant samples at different temperatures and pressures

图9 GAP/CL-20推进剂样品在不同温度和压强下的高速图像
Fig.9 The high-speed images of GAP/CL-20 propellant samples at different temperatures and pressures

图10 在不同温度和压强下GAP/CL-20推进剂样品的压强演变<br/>Fig.10 The pressure evolution of GAP/CL-20 propellant samples at different temperatures and pressures

图10 在不同温度和压强下GAP/CL-20推进剂样品的压强演变
Fig.10 The pressure evolution of GAP/CL-20 propellant samples at different temperatures and pressures

图11 不同EOC温度和压强下的测试点及自着火区域<br/>Fig.11 The test points and auto-ignition regions at different temperatures and pressures(in EOC)

图11 不同EOC温度和压强下的测试点及自着火区域
Fig.11 The test points and auto-ignition regions at different temperatures and pressures(in EOC)

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备注

引言

1 试验

2 结果与讨论

3 结论

期刊信息

备注

引言

1 试 验

2 结果与讨论

3 结 论

期刊信息

1 试验

3 结论