Burning Rate of Solid Propellant Ingredients, Part 2: Determination of Burning Rate Temperature Sensitivity
Burning Rate of Solid Propellant Ingredients, Part 2: Determination of Burning Rate Temperature Sensitivity
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DOI：
10.2514/2.5523
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发表时间：
1999-11
影响因子：
1.9
通讯作者：
A. Atwood;T. Boggs;P. O. Curran;T. Parr;D. Hanson-Parr;C. F. Price;J. Wiknich
中科院分区：
文献类型：
--
作者：
A. Atwood;T. Boggs;P. O. Curran;T. Parr;D. Hanson-Parr;C. F. Price;J. Wiknich
aep D [± rb=±T0]p在比较各种材料时，必须注意如何评价aep。燃速数据的收集、在给定条件下测得的点数、初始试验条件和固有的数据分散性将对燃速温度灵敏度所获得的值产生影响。- --燃烧速率测量中最大的变化通常发生在低压下，接近材料的深度腐蚀极限，以及燃烧速率压力指数发生突变的区域。巧合的是，这些区域通常是确定燃烧速率温度敏感性时最感兴趣的区域。由于数据平滑与平均以及初始压力和温度条件的选择而发生的aep变化可能是显著的。初始温度选择对aep的影响将使用HMX数据进行演示，并将使用ADN数据（其中存在相当大的数据分散性）说明etting技术。参考文献2表1中所列的六种单元推进剂的燃速老化数据将用于证明燃速温度敏感性的评估。燃烧速率的表格数据可以在参考文献中找到。3和4参考文献4中描述了样品的类型和制备方法。3、4、其他地方
aep D [± rb=±T0]p Care must be taken in how one evaluates aep when making comparisons of various materials. The collection of burning rate data, number of points measured at a given condition, initial test conditions, and inherent data scatter will have an effect on the value obtained for the burning rate temperature sensitivity. ‡‡;§§ The largestvariationsinburning ratemeasurementsgenerally occur at low pressures, where one approaches the dee agration limit of thematerial,andatregionswhereabreakintheburningratepressure exponentoccurs.Coincidentally,theseareoftentheareasofgreatest interest when determining the burning rate temperature sensitivity. The changes in aep that occur due to data smoothing vs averaging, and with the selection of the initial pressure and temperature conditions, can be signie cant. The effect of initial temperature selection on aep will be demonstrated using the HMX data, and e tting techniques will be illustrated with the ADN data, where considerable data scatter is present. Samples Thedee agrationdataforthesixmonopropellantslisted inTable1 of Ref. 2 will be used to demonstrate the evaluation of burning rate temperature sensitivity. The tabular burning rate data may be found in Refs. 3 and 4. The sample type and preparation was described in Ref.4.Alloftheburningratemeasurementsusedinthispaperforthe calculations were made using the cinephotomicroscopy technique also described in Refs. 3, 4, and elsewhere.