Acomputationalmethodforshapecharacteristicparameters offracturedpropellantingrainform
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摘要: 分析了发射药形状特征量与密闭爆发器试验中发射药的燃烧压力曲线之间的关系,提出了估算破 碎发射药形状特征量的方法,并给出了确定发射药形状特征量的详细步骤。对通过落锤实验得到的不同破碎 程度的发射药进行了密闭爆发器实验,并利用建立的方法计算了该发射药的形状特征量,计算结果与实验结 果吻合较好。Abstract: Abstract:Byanalyzingtherelationshipsbetweentheshapeparametersofpropellantgrainandthe pressure-timecurveinaclosedbomb,acomputationalmethodwasestablishedforestimatingthe shapecharacteristicparametersoffracturedpropellantingrainformandthedetailedcalculationsteps weregiven.Thepropellantswithdifferentfracturedegreesobtainedindropweighttestsweretested inaclosebombandthecorrespondingshapecharacteristicparameterswerecalculatedbyusingtheestablishedmethod. Thecalculatedresultsareinagreementwiththeexperimentalones.
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Key words:
- mechanicsofexplosion /
- shapecharacteristicparameters /
- closedbomb /
- propellant /
- fracture
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