http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
옥영석,김복경 대한산업공학회 2013 대한산업공학회 춘계학술대회논문집 Vol.2013 No.5
Rapidly thanks to the automotive parts industry in the development and reorganization of the domestic automakers, has been enhanced based. Also, finished car active overseas factory surge in auto parts export itself. Auto parts makers in order to strengthen the company"s competitiveness in the field of production, manufacturing execution systems actively introduced. Production field data collection part of manufacturing execution systems operating from the production performance over the traditional way of working daily record automatically collect and Production PLC equipment, barcode labels or RFID tags attached to the pallet or box or product.collected production unit.In particular, how to use the barcode using a barcode scanner or a camera vision, you can collect the data. How to use barcodes on investment compared to how to collect data using RFID, PLC or better. Barcode equipment PLC RFID compared to production figures collected accuracy of many factors that can cause the workers" human error likely to fall. This study, the production performance of the chassis module assembly process to collect, when to collect data using a barcode scanner and vision cameras, and RFID reader, which way to analyze is more effective.
퇴화하는 생산시스템에서의 최적생산주기 및 검사주기의 동시결정
옥영석 釜山工業大學校 1992 論文集 Vol.34 No.-
Classical Economin Manufacturing Qunatity (EMQ) models have usually ignored the possibility of process deterioration and the existence of defective items. Moreover, the use of machine inspection and restoration purposes has not been considered. On the other hand, past studies on maintenance models do not consider the length of production run to be a decision variable. In this paper, the joint problem of EMQ and inspection schedule is studied under equally-spaced inspection. Sometimes inspections do not reveal the true status of the production process, or the information obtained through inspection is not reliable. A probability β is introduced thaat 'out-of-control' state of the production process will not be identified at an inspection, and a corresponding probability (1-β) that it will. A simple relationship has been developed to detemine the effectiveness of maintenance by inspection. The problem of simultaneous determination of EMQ and the inspection schedule is solved by using an approximation to the cost function. Numerical problems are solved for illustration between different parameter values.
옥영석,박병석,이철희,우용훈 대한지질공학회 2016 대한지질공학회 학술발표회논문집 Vol.2016 No.1
본 논문은 사면해석에 있어서 한계 평형법에 의한 사면의 파괴거동 및 안전율과 강도감소법에 의한 유한요소법으로 결과를 비교 산정하였다. 그 결과, 강도 감소법 해석결과는 사면의 안정해석에 비해 안전율이 상대적으로 높게 산정됨을 볼 수 있었다. 우기시 한계평형법에서는 강도감소법에 비해 과대공법을 설계를 할 수 있다는 것을 알 수 있었다. 반대로 강도감소법이 한계평형법에 비해 과소설계를 할 수 있다는 것을 알 수 있었다.
수리비용과 불량품비율이 검출지연에 의존하는 경우 퇴화하는 생산시스템에서의 최적 생산 검사계획
옥영석 釜慶大學校 1998 釜慶大學校 論文集 Vol.3 No.2
In this paper, the joint problem of EMQ and inspection schedule is studied under the realistic assumption that the repair cost and defective rate are a function of the detection delay. We have developed sufficient conditions for the optimality of the commonly used equal-interval maintenance inspection schedule. The conditions are found to be a function of parameters such as the mean time for system deterioration and the form of the repair cost fuction and the defective rate fuction. For specific repair cost function and defective rate fuction such as linear and exponential, an efficient solution procedure is presented for the simultaneous determination of inspection and production schedule. A numerical example is presented.
옥영석,김복경 한국경영과학회 2013 한국경영과학회 학술대회논문집 Vol.2013 No.5
Rapidly thanks to the automotive parts industry in the development and reorganization of the domestic automakers, has been enhanced based. Also, finished car active overseas factory surge in auto parts export itself. Auto parts makers in order to strengthen the company"s competitiveness in the field of production, manufacturing execution systems actively introduced. Production field data collection part of manufacturing execution systems operating from the production performance over the traditional way of working daily record automatically collect and Production PLC equipment, barcode labels or RFID tags attached to the pallet or box or product.collected production unit.In particular, how to use the barcode using a barcode scanner or a camera vision, you can collect the data. How to use barcodes on investment compared to how to collect data using RFID, PLC or better. Barcode equipment PLC RFID compared to production figures collected accuracy of many factors that can cause the workers" human error likely to fall. This study, the production performance of the chassis module assembly process to collect, when to collect data using a barcode scanner and vision cameras, and RFID reader, which way to analyze is more effective.