Harmony Search Optimization: Application to Pipe Network Design

The Pipe network design problem is considered by choosing least-cost diameter pipes to satisfy flow demands and minimum head restrictions. Harmony and innovation are brought together as in music to devise a search pattern that can identify a large number of local optima in pipe network design. Impro...

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Bibliographic Details
Published in:International journal of modelling & simulation 2002-01, Vol.22 (2), p.125-133
Main Authors: Geem, Z.W., Kim, J.H., Loganathan, G.V.
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
harmony search
hydraulic simulator
Mechanical engineering. Machine design
minimum power loss
Operational research and scientific management
Operational research. Management science
optimization
Optimization. Search problems
Pipe networks
Pipings, valves, fittings
Steel design
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Summary:The Pipe network design problem is considered by choosing least-cost diameter pipes to satisfy flow demands and minimum head restrictions. Harmony and innovation are brought together as in music to devise a search pattern that can identify a large number of local optima in pipe network design. Improvization is brought in by varying the pitch rate parameter, and harmony is maintained by accumulating improving solutions. Because in pipe networks optimization by its very nature removes any redundancy, a minimum power loss criterion is introduced to enhance feasibility. The efficacy of the algorithm is demonstrated by solving a test nonlinear program and a pipe network problem from the literature to global optimum. Several near-optimal solutions are reported.
ISSN:0228-6203
1925-7082
DOI:10.1080/02286203.2002.11442233