灌溉排水学报2017，Vol.36Issue(4)：94-98,5.DOI:10.13522/j.cnki.ggps.2017.04.017
基于粒子群算法的抛物线形渠道断面优化方法
Optimizing Channels with Parabolic Cross-Section Using the Particle Swarm Method
摘要
Abstract
A mathematical model for optimizing channels with parabolic cross section was developed in this paperin attempts to resolving the problems such as high computation demanding,low accuracy associated with the trial-error method used in the conventional method.The objective in the optimization was to minimize the difference between the calculated flow rate and designed flow rate,and the optimal solutions were solved by particle swarm algorithm assuming that the cross section of the channel is Parabolic.We took the concrete channel in Wuzhangyuan branch in the Stone River Irrigation District of Shaanxi province as an example,and the equation shape parameter (a) and the design depth (h) of the second parabolic channel section were designed optimally.The results showed that a,which met the constraints,was 5.06 and h was 0.398 2 m.Compared to the original design,the cross section,the volume of the channel and the concrete lining quantity reduced by 0.102 1％,6.225 4 m3 and 4.764 1 m3,respectively.Therefore,the particle swarm optimization algorithm can effectively solve the optimization of parabolic channel and has the advantages of fast convergence,high accuracy and more efficient in searching the global optimization solution.关键词
抛物线形渠道/断面优化/粒子群算法Key words
parabolic channel/cross section optimization/particle swarm algorithm分类
建筑与水利引用本文复制引用
张伟,何武全..基于粒子群算法的抛物线形渠道断面优化方法[J].灌溉排水学报,2017,36(4):94-98,5.基金项目
国家“十三五”重点研发课题(2016YFC0400203) （2016YFC0400203）
