通过建立“理想混合炸药”模型 ,发现理想混合炸药的爆速 Did与纯组分炸药的爆速 Di和质量分数 Wi之间存在着定量关系 ,据此发展了一种计算混合炸药爆速的新方法。对大量混合炸药的计算结果表明 ,爆速计算值与实验值的一致性令人满意 ,平均误差 1.37%。本文方法的提出 ,不仅提供了一种预测混合炸药爆速的方法 ,而且对高爆速混合炸药的研究具有一定的指导意义 Through the establishment of “ideal mixed explosive” model, it is found that there is a quantitative relationship between the detonation velocity Did and the depolarization mass Di and mass fraction Wi of the pure explosive, and a new method to calculate the detonation velocity of the hybrid explosive is developed. The calculation results for a large number of mixed explosives show that the calculated detonation velocity is in good agreement with the experimental value, with an average error of 1.37%. The proposed method not only provides a method of predicting the detonation velocity of mixed explosives, but also has some guiding significance for the study of high detonation mixed explosives