1979年作者根据内弹道基本方程以及弹道曲线特性的分析建立了“内弹道势平衡理论”^[1]。提出具有统计概念的势平衡点以标志火药燃烧过程中的边界条件，并在理论上和实际上提供了研究炮膛内火药实际燃烧规律的正确途径。本文在此基础上进一步提出研究炮膛内的实际燃气生成函数同实际燃速函数的方法，并建立了相应的实际燃烧规律弹道解法，从而形成了一种与以几何燃烧定律为基础的经典内弹道完全不同的体系。

Based on the internal ballistics fundamental equation and the analysis of characteristics of internal ballistic curves，the author established “The Theory of Equilibrium of Internal Ballistic Potential”^[1]，published in 1979。 In this theory, the point of potential equilibrium is defined as a boundary condition in actual burning process of propellant and a reasonable method, is offered theoretically and practically to study the actual burning rules in barrel. This paper, on the basis of this method, illustrates the actual burning gas formation function and burning rate function in barrel and presents a corresponding internal ballistic model available to solve problems in existing guns and to design new guns. The theory and the practice of this model denote the development of a new system which is different from classical system in internal ballistics.