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首页> 外文会议>National Defense Industrial Association;International symposium on ballistics >RESPONSE OF NITRAMINE AND NON-NITRAMINE BASED COMPOSITE PROPELLANT TO PULSE TRIGGERED COMBUSTION INSTABILITY
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RESPONSE OF NITRAMINE AND NON-NITRAMINE BASED COMPOSITE PROPELLANT TO PULSE TRIGGERED COMBUSTION INSTABILITY

机译：硝胺和非硝胺基复合推进剂对脉冲触发的燃烧不稳定的响应

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Combustion instability (CI) is a major concern during design and development ofpropulsion system for various rockets & missiles. This work aims to investigate effect ofnitramine on combustion response of low alumunised composite propellant. To study the CI,two different propellant compositions with and without RDX were analysed for their responseto ejecta using ejecta pulser. The ejecta pulser injects the teflon ball or ejecta in solid rocketmotor which may trigger CI in the motor or in worst case may result in catastrophic motorfailure. Both the motors were pulsed at 65% of burn time. The response of the motor to thispressure pulse was analyzed and quantified in terms of rate of change of acoustic energy (αM)which determines the stability of motor.The αM values for propellant compositions with RDX and without RDX were found tobe +17.69 and +31.47 respectively which shows that the nitramine based compositepropellant are less susceptible to combustion instability as compared to non-nitraminecomposite propellant.
机译：在燃烧室的设计和开发过程中，燃烧不稳定性（CI）是一个主要问题。 各种火箭和导弹的推进系统。这项工作旨在调查 硝胺对低铝化复合推进剂燃烧反应的影响。要研究CI， 分析了带有和不带有RDX的两种不同的推进剂成分的响应 使用喷射脉冲发生器喷射喷射。顶出脉冲发生器将聚四氟乙烯球或顶出物注入固体火箭中 可能触发电动机中CI的电动机，或者在最坏的情况下可能会导致灾难性电动机 失败。两台电动机均以燃烧时间的65％脉冲。电机对此的响应 根据声能的变化率（αM）对压力脉冲进行了分析和量化 这决定了电机的稳定性。 发现带有RDX和不带有RDX的推进剂组合物的αM值 分别为+17.69和+31.47，这表明基于硝胺的复合材料 与非硝胺相比，推进剂不易燃烧不稳定性 复合推进剂。

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