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박홍석(Hongseok Park),최홍원(Hungwon Choi),문시환(Sihwan Mun),박상길(Sangkil Park) 한국자동차공학회 2008 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Because of the turbulent markets and the increasing global competition, automotive manufacturers are forced to reduce the cost and time for implementation of the manufacturing system. To solve these problems, lots of automotive manufacturers try to apply digital manufacturing technology. In this paper, the method for planning of digital manufacturing system is proposed and door trim assembly system is determined as the subject of our research. First of all, the process sequence is generated based on the product analysis. And, the static and dynamic relationships between system components are represented using IDEF0 and UML model. The working time is estimated through the regression analysis based on practical video analysis. According to the system configuration strategy, initial concept system layout is implemented 3D virtual environment. The problems caused by bad working motions are detected and modified through the ergonomic analysis using RULA method. According to proposed procedure, digital door trim assembly system is implemented in DLEMIA.
박홍석(Hongseok Park),오치봉(Chibong Oh),박상길(Sangkil Park),문시환(Sihwan Mun),최흥원(Hung Won Choi),최병국(Byoung Kook Choi) 한국자동차공학회 2009 한국자동차공학회 부문종합 학술대회 Vol.2009 No.4
Improvement in productivity becomes each company's urgent problem that arise from the struggle of global market for existence. Global company focus on improvement in productivity in order to follow global circumstance, but suppliers are just seeing to instinctively improve their manufacturing system's problem by work manager. the progress of hand-made work that charge in most of suppliers manufacturing processes analyze the actual processes to use IDEF0, UML methodology, and Work Sampling. And then, define standard operations through MODAPTS, make sure of manufacture mobility through processes improvement, also, analyze quantitatiely result of reform measures through simulation.