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Paper Information

Journal:   MODARES TECHNICAL AND ENGINEERING   Spring 2005 , Volume - , Number 19; Page(s) 101 To 110.
 
Paper: 

A TWO PHASE METHOD FOR DISCRETE OPTIMIZATION OF PIPE NETWORKS

 
 
Author(s):  AFSHAR M.H.*
 
* Dept. of Civil Eng., Iran Univ. of Science and Tech.
 
Abstract: 

An efficient two-phase method for discrete optimization of pipe networks is presented in this paper. The method consists of two stages. In the first, the problem of pipe network optimization is formulated as an unconstrained optimization problem using an iterative penalty method, which is then solved by an all purpose optimization tool, DOT, to get the continuous solution for the pipe diameters. In the second stage, a second optimization tool, DOC, incorporating a branch and bound method is used to get the discrete solution starting from the already available continuous solution as a good initial guess. Two different strategies are used at the discrete solution stage. In the first, named as local here, the search space is restricted to the upper and lower diameter limits of the optimal continuous solution, while in the second strategy, so called as global, this restriction is relaxed. The method is shown to be capable of producing results comparable to the existing sophisticated algorithms with much less computational effort. The method is used to find the optimal solution to some of the benchmark pipe networks and the results are presented. The results obtained for the networks consisting of pipes are encouraging.

 
Keyword(s): PIPE NETWORKS, OPTIMIZATION, PENALTY METHOD
 
 
References: 
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Citations: 
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APA: Copy

AFSHAR, M. (2005). A TWO PHASE METHOD FOR DISCRETE OPTIMIZATION OF PIPE NETWORKS. MODARES TECHNICAL AND ENGINEERING, -(19), 101-110. https://www.sid.ir/en/journal/ViewPaper.aspx?id=39348



Vancouver: Copy

AFSHAR M.H.. A TWO PHASE METHOD FOR DISCRETE OPTIMIZATION OF PIPE NETWORKS. MODARES TECHNICAL AND ENGINEERING. 2005 [cited 2021October27];-(19):101-110. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=39348



IEEE: Copy

AFSHAR, M., 2005. A TWO PHASE METHOD FOR DISCRETE OPTIMIZATION OF PIPE NETWORKS. MODARES TECHNICAL AND ENGINEERING, [online] -(19), pp.101-110. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=39348.



 
 
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