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首页> 外文期刊>Combustion, Explosion, and Shock Waves >Effect of Application of Various Ignition Conditions in Closed-Vessel Tests on Burning Rate Calculation of a Fine-Grained Propellant
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Effect of Application of Various Ignition Conditions in Closed-Vessel Tests on Burning Rate Calculation of a Fine-Grained Propellant

机译：封闭容器试验中各种点火条件的应用对细粒推进剂燃烧速率计算的影响

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摘要

The most widely used experimental method for determination of dynamic characteristics of gun propellant combustion is burning a specific amount of a propellant in a closed chamber (vessel) and measuring the resulting pressure versus time profile. The aim of this work is to conduct experimental investigations at different conditions of propellant ignition, which permit to verify the view on legitimacy of standard conditions of closed-vessel tests. This paper considers first of all the influence of conditions of propellant ignition during closed-vessel tests on possible deviations in determination of the burning rate. For this purpose, experimental tests of a fine-grained, single-base propellant are carried out in a conventional closed vessel and a micro-closed vessel, applying different ignition methods for the same loading density. The results of experimental tests and calculations show significant influence of the ignition system type used on determined values of the burning rate and other dynamic characteristics of propellant combustion, such as dynamic vivacity, absolute quickness, and relative quickness.
机译：确定枪支推进剂燃烧动态特性的最广泛使用的实验方法是在密闭腔室（容器）中燃烧一定量的推进剂，并测量压力与时间的关系曲线。这项工作的目的是在推进剂点火的不同条件下进行实验研究，以验证密闭容器测试标准条件是否合法。本文首先考虑了密闭容器试验中推进剂着火条件对确定燃烧速率可能产生的偏差的影响。为此，在常规密闭容器和微密闭容器中对细粒单基推进剂进行实验测试，对相同的装载密度采用不同的点火方法。实验测试和计算的结果表明，所使用的点火系统类型对燃烧速率的确定值和推进剂燃烧的其他动态特性（例如动态活度，绝对快速度和相对快速度）具有重大影响。

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