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求解双基火箭火药的燃烧产物成分,要解高阶联立方程,工程上一般用迭代法计算,但计算相当复杂.本文采用图解法得到的经验公式,比用最小二乘法简便;并用第一作者创造的经验公式计算火药特性系数,使本方法适用于所有的双基火箭火药.通过对中、美、苏、英、法,西德几十种火药配方的计算证明,本方法计算的结果准确度高,与准确值比较燃烧产物主要成分分压力的最大相对误差≤0.09%,用它计算燃烧产物的热力参数,最大相对误差≤0.19%,超过一般工程计算的精确度要求.因此,对双基火箭火药来说本方法完全可以代替迭代法.
In order to solve the high-order simultaneous equations, the calculation of the combustion product composition of the double-rocket rocket propellant is generally complicated by the iterative method, but the calculation is rather complicated. In this paper, the empirical formula obtained by the graphical method is simpler than the least-squares method; The empirical formula is used to calculate the coefficient of gunpowder characteristic, which makes the method suitable for all double-base rocket propellants.According to the calculation of dozens of gunpowder formulas in China, the United States, the Soviet Union, Britain, France and West Germany, the accuracy of the method High, and the exact value of the relative pressure of the main component of the combustion products relative maximum error ≤ 0.09%, using it to calculate the thermal parameters of the combustion products, the maximum relative error ≤ 0.19%, exceeding the accuracy of the general engineering requirements.Therefore, Rocket gunpowder, this method can completely replace the iterative method.