Performance optimization of extrusion blow molded parts using fuzzy neural-taguchi method and genetic algorithm

DOIResolve DOI: http://doi.org/10.1115/DETC2002/DAC-34047
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TypeArticle
Proceedings titleASME 2002 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference: Volume 2: 28th Design Automation Conference
ConferenceASME 2002 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, September 29–October 2, 2002, Montreal, Quebec, Canada
ISBN0-7918-3622-3
Pages133139
AbstractThis paper presents a soft computing strategy to determine the optimal die gap parison programming of extrusion blow molding process. The design objective is to minimize part weight subject to stress constraints. The finite-element software, BlowSim, is used to simulate the parison extrusion and the blow molding processes. However, the simulations are time consuming, and minimizing the number of simulation becomes an important issue. The proposed strategy, Fuzzy Neural-Taguchi and Genetic Algorithm (FUNTGA), first establishes a back propagation network using Taguchi’s experimental array to predict the relationship between design variables and response. Genetic algorithm is then applied to search for the optimum design of parison programming. As the number of training samples is greatly reduced due to the use of orthogonal arrays, the prediction accuracy of the neural network model is closely related to the distance between sampling points and the evolved designs. The Reliability Distance is proposed and introduced to genetic algorithm using fuzzy rules to modify the fitness function and thus improve search efficiency. This study uses ANSYS to find the stress distribution of blown parts under loads. The comparison of results demonstrates the effectiveness of the proposed strategy.
Publication date
PublisherASME
LanguageEnglish
AffiliationNational Research Council Canada
Peer reviewedYes
NPARC number23001674
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Record identifier515532ea-fb43-4c08-b49e-2507f81faa78
Record created2017-03-16
Record modified2017-03-16
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