Multilevel Optimization of the Semi-Open Impeller in a Centrifugal Pump

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dc.contributor.authorPapierski, Adam
dc.contributor.authorBłaszczyk, Andrzej
dc.date.accessioned2020-12-17T12:20:34Z
dc.date.available2020-12-17T12:20:34Z
dc.date.issued2011
dc.description.abstractFull optimization task for the case of the semi-open impeller with straight blades, requires description of its' geometry by means of, at least, eighteen design variables. In the case of constant meridional cross-section, are required at least eight design variables. Solution of the task with such great vector of design variables requires much more time. One way to manage to obtain a solutions with great variety of design variables is comprehensive approach to the task depending on the partition into minor subtasks. After decomposing the optimization task, one should choose procedure of solving it. One of these procedures is parametric optimization, which is two-stage method of minimizing (maximizing). This optimization is carried on in two levels. On a lower level, multi-optimization of decomposed parts of the tasks, depending on design variables, is being held. The solution of the lower level is used in an upper level (coordinating level) to find optimal coordination variables. It has been shown that result of multilevel optimization and full task optimization is the same in limits of accepted accuracy of the objective functions' calculus. Time of the calculation for the multilevel optimization task is over four times shorter than undecomposed task time.en_EN
dc.identifier.citationMechanics and Mechanical Engineering, Vol. 15, No. 3, 2011, s. 319-332
dc.identifier.issn1428-1511
dc.identifier.urihttp://hdl.handle.net/11652/3127
dc.language.isoenen_EN
dc.publisherWydawnictwo Politechniki Łódzkiej ; Katedra Dynamiki Maszyn - Wydział Mechaniczny Politechniki Łódzkiejpl_PL
dc.publisherLodz University of Technology Press ; Department Division of Dynamics - Faculty of Mechanical Engineeringen_EN
dc.relation.ispartofseriesMechanics and Mechanical Engineering, Vol. 15, No. 3, 2011
dc.subjectsemi-open impelleren_EN
dc.subjectmultilevel optimizationen_EN
dc.subjectwirnik półotwartypl_PL
dc.subjectoptymalizacja wielopoziomowapl_PL
dc.titleMultilevel Optimization of the Semi-Open Impeller in a Centrifugal Pumpen_EN
dc.typeartykułpl_PL
dc.typearticleen_EN

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