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문승환(SeungHwan Mun),신봉헌(BongHun Shin),박기범(GiBeom Park),남미희(MiHee Nam),배성준(SeongJun Bae),KiHun Kim,HeeJin Lee,김대경(DaeKyung Kim) 대한기계학회 2007 대한기계학회 춘추학술대회 Vol.2007 No.10
Profile marking and cutting is one of jobs in shipbuilding. Therefore, the automation of the profile marking and cutting process in shipyards is vital to improve the productivity, and robots play an important role in it, giving an extra benefit of replacing the human labors in dangerous working environments. The profile line in shipbuilding is composed of 2 works: (ⅰ)Marking, and (ⅱ)Cutting. In the marking work, operators mark the part name, frame line, and bend line. And in the cutting work, operators cut an profile with accurate shape. The profile cutting robot system can be classified into 5 systems: (ⅰ)Cutting robot system to perform the cutting process, (ⅱ)Measuring robot system to move the profile for measuring process, (ⅲ)Printing system to mark the labeling, (ⅳ)control system to govern the machinery system for marking and cutting, and (ⅴ)management system to perform supporting roles such as running an off-line program and a monitoring program.
조선 소조립 자동 용접 로봇 시스템의 CAD/CAM 시스템
문승환(SeungHwan Mun),도영칠(YoungChil Doh),박기범(GiBeom Park),김대경(DaeKyung Kim),김세환(SeHwan Kim) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.6
In this paper we explain a CAM system for automatic welding robot system on Sub-assembly line at shipyard. This CAM system consists of 4 systems - OLP(Off Line Program) System for welding robots, CVS(Camera Vision System) for automatic recongnition of parts position, Scheduling System for automatic load distribution and Monitoring System to show operators working state.<br/> This system increases production and efficiency for manual welding work using auto carriage.
[차량운동성능] 타이어와 차량 쏠림 Ⅱ-이론적 배경, Simulation, 실차검증
이정환(Jung-Hwan Lee),문승환(Seunghwan Mun) 한국자동차공학회 1999 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1999 No.11_2
It is known that residual aligning torque of tires causes vehicle pull. There is, however, only a little literature available which shows how the residual aligning torque of tires causes vehicle pull. In this paper. a vehicle model in two degrees of freedom was adopted for the analysis of a vehicle under the straight-ahead motion. The analysis with this vehicle model clearly shows the effect of residual aligning torque of tires on vehicle pull. In order to show the validity of the analysis. a vehicle commercially available was selected. This vehicle was modeled in 137 degrees of freedom system with multibody dynamics software. Vehicle pull simulation results show that vehicle model drifts in lateral direction due to the residual aligning torque of tires. Vehicle test results with tile car were also included.