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생산 흐름 분석을 통한 FAS라인의 최적 배치 설계에 관한 연구
가춘식(Chun Sik Ga),정진휘(Jinhwi Jung),장봉춘(Bong-Choon Jang),엄용균(Yong-Gyun Eom) 대한기계학회 2004 대한기계학회 춘추학술대회 Vol.2004 No.4
Many mid-sized companies in Korean automotive industry have attempted to solve the lack of human power, to control the quality of components, to improve the production rate, and to innovate the manufacturing line. The goals of this study are to analyze the production rate of an automotive component manufacturing line using simulation software, to construct a Flexible Automation Subassembly (FAS) system and to suggest an optimized layout design using FAS line. In this research, the simulation model for manufacturing line was developed and used the realistic data (production planning, component type, working order, process time, queue time, line rules, etc) of a medium sized company in Korean automotive industry. To complete this research, a simulation software 'ARENA' was used.
MATLAB/Simulink를 이용한 컬럼형 전동조향장치(EPS)의 토크제어 시뮬레이션
방두열(Du-Yeol Pang),이성철(Seong-Cheol Lee),장봉춘(Bong-Chun Jang) 한국정밀공학회 2006 한국정밀공학회 학술발표대회 논문집 Vol.2006 No.5월
As a development of technology, electric power steering system which uses an electric motor came to use in recent and it can solve the problems with hydraulic power steering system. In this paper, vehicle model and electric power steering system are combined to fulfill full vehicle model. By simulation effect of motor torque assist through electric power steering revealed effective, and full vehicle model are proved reasonable through comparison with real car experimental datum.
김만철(Kim Man Cheol),양대권(Yang Dae Kwon),장봉춘(Jang Bong Chun),이대형(Lee Dae Hyung),신순호(Shin Soon Ho) 한국철도학회 2006 한국철도학회 학술발표대회논문집 Vol.- No.-
Currently, approx. 10,532 turnouts were installed on the KR line, of which 3,644 turnouts were installed in the main line where high speed operation is performed. This shows that it is necessary to improve the performance of turnout as one of vulnerable areas for the safe operation of a train. Even though the number of railway accidents is decreasing every year due to the renewal of railway facilities, there are still many factors that cause the occurrence of an accident. In particular, an incident in turnout area does not only have a high risk of a serious accident but also affect the operation of a train on the adjacent track in most cases, and consequently a big social loss is expected due to the delay in train operation as well as the loss of life and property. The objective of this study is to examine the accidents occurred in turnout area that is one of typical vulnerable areas over the past ten years, on the basis of the results, and to take an appropriate measure by finding out the major cause of accidents in turnout area so that a systematic safety system can be established to prevent or reduce accidents in turnout area.