摘要
以管网年费用折算值为优化目标、管网拓扑结构与管径为优化参数、管网节点最低可靠度为约束条件,建立了供水管网抗震优化设计模型。利用微粒群算法对这一模型进行了求解,该算法以管网作为微粒个体,通过不断地更新微粒的位置来搜索最优的管网结构,直到最后给出优化的管网结构。利用上述方法对一典型供水管网进行了抗震优化设计分析,给出了3种不同节点最低可靠度约束条件下的优化改造方案。
As an essential component of lifeline systems,water distribution networks play an important role in modern city.Taking network′s annual reduced cost as optimization object and seismic reliability as optimization restriction,a network topology and pipe diameter optimization model is established.The particle swarm algorithm,which takes network as particle and updates the particle＇s location to give the optimal network structure,is chosen to solve the optimization problem.Also,a typical water distribution network,which consists of 29 nodes and 47 pipelines,is investigated.Three different network structures are given respectively under three different reliability restrictions.The results show that the approach put forward in this paper are qualified for water distribution networks optimization.
出处
《防灾减灾工程学报》
CSCD
2010年第3期269-273,共5页
Journal of Disaster Prevention and Mitigation Engineering
基金
国家科技支撑计划项目(2006BAJ03B03)
国家自然科学基金委青年科学基金项目(50808144)资助
关键词
供水管网
抗震优化设计
年费用折算值
拓扑结构
管径
微粒群算法
water distribution networks
seismic reliability optimization
annual reduced cost
topology structure
pipe diameter
particle swarm algorithm
