CAJ | 학술논문

稳态和非稳态燃烧模型对于研究AP/HTPB复合推进剂中低频下的压强耦合特性问题是十分重要的,可信的稳态计算结果是非稳态计算的前提。在应用稳态燃烧模型对推进剂的燃速进行计算时,参数值的选取对计算结果具有很大的影响。针对AP/HTPB复合推进剂燃烧特性,在BDP多火焰结构理论的基础上,采用了AP/HTPB复合推进剂稳态燃烧模型,并对模型进行了数值计算,研究了AP和HTPB的指前因子和活化能及δ参数对推进剂燃速的影响。计算结果表明, AP活化能Es,ap的取值对推进剂燃速结果影响较大,在高压下更为敏感；HTPB的指前因子As,b对燃速几乎没有影响,其活化能Es,b对燃速影响较小,高压条件下,影响作用略微增强；参数δ值的选取对计算燃速值影响很大。
은태화비은태연소모형대우연구AP/HTPB복합추진제중저빈하적압강우합특성문제시십분중요적,가신적은태계산결과시비은태계산적전제。재응용은태연소모형대추진제적연속진행계산시,삼수치적선취대계산결과구유흔대적영향。침대AP/HTPB복합추진제연소특성,재BDP다화염결구이론적기출상,채용료AP/HTPB복합추진제은태연소모형,병대모형진행료수치계산,연구료AP화HTPB적지전인자화활화능급δ삼수대추진제연속적영향。계산결과표명, AP활화능Es,ap적취치대추진제연속결과영향교대,재고압하경위민감；HTPB적지전인자As,b대연속궤호몰유영향,기활화능Es,b대연속영향교소,고압조건하,영향작용략미증강；삼수δ치적선취대계산연속치영향흔대。
The steady and unsteady combustion models are very important to study the pressure coupled response of composite propellant at middle-low frequency, and the reliable result of steady calculation is the premise of unsteady calculation. The value of parameters used in the combustion model of solid composite propellant has great effect on the burning rate of propellants, but there are few researches about it at present. A steady combustion model of AP/HTPB composite solid propellant was developed based on the BDP combustion model, and the model was calculated by numerical method to analyze the effect of not only pre-exponential fac-tor and activation energy of AP and HTPB but also parameterδon the burning rate of propellants. The calculated results show that the burning rate is more sensitive to the activation energy of AP and this effect can be enhanced under high pressure;the pre-expo-nential factor and activation energy of HTPB have little effect on burning rate, but the effect of activation energy increases under higher pressure;δ has great effect on the burning rate of propellants, and it must be determined carefully according to the require-ment requirement of the model and combustion conditions.