关键词: 推进剂燃烧;模拟;计算方法;端羟基聚丁二烯推进剂

Abstract: Based on our comprehensive combustion model of "AP/HTPB/A1/ Cat." propellants,[1-4] the relationship between the catalyzed burning rate or pressure exponent and the catalyzing regions of propellant has been discussed in detail, and then a catalystic action factor B. was introduced. The several parameters of the combustion model ralated to the catalyst acting regions were modified through being multiplied or diviced by B..A large number of concrete numrical calculations, in which the number of AP modals, AP particle diameter, the content and the particle diameter of A1 and the content of catalyst(ferrocene)are changed systematically, have been made and compared to the experimental data.The relative errors of all calculations were less than 10%.From these numerical calculations, some useful information especially about how to get a formulation for the propellant with high Is (specific impulse), highburning rate and low pressure exponent has been obtained.All calculation results are denoted directly in several three-dimensional figures drawn by microcomputer automatically.And it is concluded that-B.for different kinds ,of catalysts, has different constants a and b, and different acting regions of propellants combust-

Key words: Propellant combustion;Simulation;Calculation method;Hydroxy ter-minated polybutadiene propellant