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URN etd-0213109-113609 Statistics This thesis had been viewed 3761 times. Download 2126 times. Author Hsin-yi PAI Author's Email Address No Public. Department Mechanical Engineering Year 2008 Semester 1 Degree Master Type of Document Master's Thesis Language zh-TW.Big5 Chinese Page Count 111 Title Multi-objective Optimization of Runner Design for Plastic Digital Photo Frame Integrated with Moldflow
and Genetic Algorithms
Keyword optimiza genetic algorithms warpage weld line weld line warpage genetic algorithms optimiza Abstract The injection molding is the mostly used manufacturing method for plastic products. Usually the mold design or processing parameters setup of plastic injection mold is heavily depending on designer's experience or trial-and-error procedure. Even the designer could meet the requirements through several trials, it still cannot guarantee success for the design with complex geometry or high precision requirement of surface. The designer always falls into the choice between conflicts. For example, the weld line and warpage are common thorny problem for designer.
The main purpose of this study is using genetic algorithms as global searching tool for optimization. Some test functions were used to verify the architecture and performance of the developed program. The analysis capability of injection mold of Moldflow was integrated with genetic algorithms for searching optimal parameter settings of runner design for plastic digital photo frame that the arrangement of weld line, minimum warpage and total weight were optimized. Form the results of this study, the optimal parameter setting for manufacturing process found by integration of Moldflow and developed genetic algorithm programs can successfully find the optimal arrangement of weld line, minimum warpage and weight simultaneously for digital photo frame. It can help the designer to reduce cost, improve products quality and competence.
Advisor Committee Prof. Chun-Yin Wu - advisor
Prof. Chien-Jong Shih - co-chair
Prof. Ching-Chih Tai - co-chair
Files Date of Defense 2009-01-16 Date of Submission 2009-02-13