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논문 기본 정보

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(피도텍) (피도텍) (피도텍) (한국생산기술연구원) (한국생산기술연구원)
저널정보
한국유체기계학회 한국유체기계학회 논문집 한국유체기계학회 논문집 제26권 제6호(통권 제141호)
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    초록·키워드

    In this paper, Multi-objective optimization of the axial-flow pump impeller is investigated with the multi-stage design optimization process. It has sequential processes, which are called screening, autonomous metamodeling, design optimization, and validation. To investigate these processes, commercial PIDO software called PIAnO and AIDesigner are used. For better quality metamodels with fewer design points, autonomous metamodeling with AIDesigner’s own algorithms is applied. As a result of metamodeling, RBFi for efficiency of design flow rate efficiency, RBFr for efficiency of low flow rate, and Kriging for the total head of design flow rate are selected by minimum root mean square errors. for variable operation conditions, the efficiency of a low flow rate is added to objective functions to consider and improve performances of off-design conditions. Optimization with MOGA is investigated, Pareto front is acquired with improved efficiencies of both flow rates with satisfying constraints. validation analysis and flow characteristic analysis are investigated for the reliability of generated metamodels, errors are within 0.3%, and reasonable flow characteristics are confirmed.

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