氧化剂含量和粒度对NEPE推进剂燃速影响的模型化

推进技术 ›› 2008, Vol. 29 ›› Issue (4): 502-507.

氧化剂含量和粒度对NEPE推进剂燃速影响的模型化

李苗苗,宋洪昌,汪越,李凤生,程志鹏,郭效德

南京理工大学国家特种超细粉体工程技术研究中心;南京理工大学国家特种超细粉体工程技术研究中心;湖北航天化学技术研究所;南京理工大学国家特种超细粉体工程技术研究中心;南京理工大学国家特种超细粉体工程技术研究中心;南京理工大学国家特种超细粉体工程技术研究中心

发布日期:2021-08-15
基金资助:
国家“九七三”项目(61337020302)

Predicting effects of oxidizer content and particle size on NEPE combustion characteristics

National Special Superfine Powder Engineering and Technology Center,Nanjing Univ.of Science and Technology,Nanjing 210094,China;National Special Superfine Powder Engineering and Technology Center,Nanjing Univ.of Science and Technology,Nanjing 210094,China;Hubei Inst.of Aerospace Chemotechnology,Xiangfan 441003,China;National Special Superfine Powder Engineering and Technology Center,Nanjing Univ.of Science and Technology,Nanjing 210094,China;National Special Superfine Powder Engineering and Technology Center,Nanjing Univ.of Science and Technology,Nanjing 210094,China;National Special Superfine Powder Engineering and Technology Center,Nanjing Univ.of Science and Technology,Nanjing 210094,China

Published:2021-08-15

摘要/Abstract

摘要： 以高能固体推进剂热分解特性和燃烧模型的研究成果为基础,建立了由化学结构参数计算NEPE推进剂的燃速和压强指数的公式,计算了氧化剂组分含量和粒度对燃烧性能的影响。经验证,计算结果与实测燃速值的偏差全部在±20%以内,其中80%的偏差在±10%以内。这说明所建立的模型基本合理,编制的NEPE类推进剂燃速计算程序基本可行。

关键词: 固体推进剂;高能推进剂;燃烧模型+;燃烧性能;计算方法;燃速

Abstract: On the basis of an analysis and investigation on thermal behavior and combustion model of the high energy solid propellant,considering the combustion characteristics of NEPE propellant,the burning rate and pressure exponent equation of NEPE was derived based on the chemical structure.In the light of this model,a computer program is compiled to compute the burning rate and its pressure exponent.The effects of oxidizer(AP,RDX and HMX) content and particle size on the propellants combustion characteristics are studied systematically.The results show that most of calculated results are within the ten percent relative error range of the experimental values.It proves that the model and the program are reasonable.

Key words: Solid propellant;High energy propellant;Combustion model+;Combustion performance;Calculation method;Burning rate

李苗苗,宋洪昌,汪越,李凤生,程志鹏,郭效德. 氧化剂含量和粒度对NEPE推进剂燃速影响的模型化[J]. 推进技术, 2008, 29(4): 502-507.