优化设计在三峡工程船闸中的应用

Application of Optimization Design to Lock in Three Gorges Project

本文的要点是优化方法在工程实践中应如何运用。具体的一个例子是：在保证使水利工程船闸设计达到最优、总用钢量达到最小的前提下，如何同时满足强度、刚度、稳定等约束条件。经理论分析和电算计算，从大量的优化方法中选择了罚函数法与DFP法的混成法，并与较稳定但输入时较冗长的可变容差法进行了比较，结果证明该混成技巧方便快捷，结果可靠．现已向生产部门提供了三峡工程第一级船闸的结构布置图。

Application of optimication method in engineering practice is stressed in the paper. For example strength,rigid and stability should be actived while insuring optimized design in locks in hydropower project and smallest amont of steel to be used. By theoritical analysis and computer computation,a method of opplied nonlinear programming has been used,including 'SUMT and DFP'. After comparation with variable admissible error method,it is shown that applied nonlinear programming method is easy and rapicl and the results are reliable. Structureplan for ghe first lock in Three Gorges project has been provided.