本文应用Lagrange对耦函数作为外部近似函数, 对外部近似法进行了推广, 从而建立了一个求解过程工程系统设计中混合整数非线性规划(MINLP)问题的整体最优化方法。除理论分析, 本文还给出方法的几何解释及在工程问题上的应用。

The outer-approximation method is generalized by replac-ing the supporting functions of the original nonlinear functions with Lagrangian dual functions and a mixee-integer nonlinear programming(MINLP)global optimization method is proposed in this paper. One presents the theoretical details of the proposed method,its geometric interpretation and an application in a process engineering optimization problem.