Measurement and Data Treatment of Burning-rate for Tubular Variable-burning-rate Gun Propellant by Closed Bomb Test
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.
burning-rate variable-burning-rate gun propellant closed bomb test
Zhang Li-hua Ma Zhong-liang Lv Bing-feng He Zheng-di Liu You-ping Xiao Zhong-liang
School of Chemical Engineering & Environment, North University of China, Taiyuan, 030051 China
国际会议
北京
英文
2007-08-05（万方平台首次上网日期，不代表论文的发表时间）