Object-Oriented Optimization of Discrete Structures

摘要

A new object-oriented method is proposed for the optimum design of discrete structures being subjected to various local and global constraints. The method uses an element-based information and procedure instead of the global ones, such as the Lagrange multiplier. The principle of the method is that each element is able to evaluate its resource margins with respect to various local and global constraints, and the element reduces its resource based on the minimum of those resource margins. This simple procedure is used iteratively to obtain an optimum solution. It is found from several numerical experiments that the proposed method is effective for the optimum design of discrete structures, such as trusses.