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首页> 外文会议>ISTM/2007;International symposium on test and measurement >Measurement and Data Treatment of Burning-rate for Tubular Variable-burning-rate Gun Propellant by Closed Bomb Test
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Measurement and Data Treatment of Burning-rate for Tubular Variable-burning-rate Gun Propellant by Closed Bomb Test

机译：闭式炸弹试验对管状可变燃速火药推进剂燃速的测量与数据处理

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In order to study the combustion performance of a tubular variable-burning-rate gun propellant which is composed of two different burning-rate layers, the measurement of its burning-rate was carried out by closed bomb test. Through treating data, the different types of expression for burning-rate with pressure were gotten and compared with. The effect of inner diameter and length-to-diameter ratio of this kind of gun propellant on its combustion regularity was discussed. The results showed that the geometric size of this tubular gun propellant has visible influence on its combustion performance under constant volume and the variation of its burning-rate with pressure could not be always perfectly expressed by power function or linear function. If using the power function, then the burning-rate pressure exponent would not be constant in some cases. Usually, the quadratic function can be a better form to express the relationship of burning-rate and combustion pressure in the range of 35 ～190MPa for the tubular variable-burning-rate gun propellant.
机译：为了研究由两个不同燃烧率层组成的管状可变燃烧率火炮推进剂的燃烧性能，通过密闭炸弹试验对其燃烧率进行了测量。通过处理数据，得到并比较了不同类型的燃速随压力变化的表达式。讨论了这种火药推进剂的内径和长径比对其燃烧规律的影响。结果表明，这种管状炮药的几何尺寸对其在恒定体积下的燃烧性能具有明显的影响，并且其燃烧速率随压力的变化不能始终用幂函数或线性函数完美地表示。如果使用幂函数，那么燃烧速率压力指数在某些情况下将不是恒定的。通常，二次函数可以更好地表达在35〜190MPa范围内的管状可变燃速火炮推进剂的燃速与燃烧压力的关系。

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