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전산해석을 응용한 해양플랜트용 WIND SHIELD 개도 성능 평가
배징도(JingDo BAE),최주형(JuHyeong CHOI),김정환(JungHwan KIM),허태욱(TaeWook HUH) 대한기계학회 2014 대한기계학회 춘추학술대회 Vol.2014 No.11
The purpose of the windshield is the protecting person, equipment and property from the wind, fundamentally. The windshield of the offshore plant is demanded not only the function of protecting but also venting of high inner pressure from explosion of the combustible material at the drilling equipment and production facilities. Thus, the development of the relief type windshield is needed for offshore plant equipment. In this paper, The opening performance of the windshield developed by the theme cluster project, The development of the heat shield and blast relief type windshield for high heat source of FPSO is evaluated by the computational analysis.
배징도(JingDo BAE),최주형(JooHyung CHOI),김정환(JeongHwan KIM),김도형(DoHyung KIM),오세준(SeJoon OH) 대한기계학회 2017 대한기계학회 춘추학술대회 Vol.2017 No.11
HIPPS(High Integrity Pressure Protection System) is installed in front of major equipment of plant system including offshore plant such as separator to prevent failure and accident caused by abnormal pressure. This is a pressure control safety system that replaced ESDV(Emergency Shutdown Valve) and EVV(Emergency Venting Valve) and guarantees high stability. If abnormal pressure is detected on the sensors installed in front of the major equipment, the system should close the valve within the minimum required time. In this study, the operation of driving part for HIPPS is visualized by simulating to improve understanding for the behavior of HIPPS when abnormal pressure is detected.
전산 해석을 이용한 해양플랜트용 Flexible barrier 거동 분석
배징도(Jingdo BAE),최주형(Joohyung CHOI),김정환(Junghwan KIM),허태욱(Taewook HUH),김동훈(Donghoon KIM) 대한기계학회 2015 대한기계학회 춘추학술대회 Vol.2015 No.11
The flexible safety barrier is used to protect the important equipments and workers from crash when some objects are transferred by crane in offshore plants, such as the jack-up, drill ship, semi rig, FPSO. In this study, to verify the impact performance of the new developed aluminum flexible barrier with own technology, the impact scenarios are established and spring capacity is defined. The spring capacity is determined for satisfying criteria 14 degree of the rotation angle of the column for barrier.
김지선(Jisun Kim),배징도(Jingdo Bae),최주형(Joohyung Choi),장진우(Jinwoo Jang),김휘(Hwi Kim) 대한기계학회 2017 대한기계학회 춘추학술대회 Vol.2017 No.11
The runner is a wheel that is located in the reaction water turbine and receives water energy to rotate. The runner consists of a blade, a crown, and a band, and the blade is welded to the crown or band. In this study, we propose a method of evaluating the residual stress that occurs when a blade inside a turbine runner is welded to a crown or band. The volume of the bead was modeled by estimating the bead accumulation with time, and the heat transfer analysis was performed with respect to the welding process. The structural analysis was performed using the temperature of the heat transfer analysis as the structure temperature. Finally, the residual stress generated in the structure during welding was confirmed and evaluated.
선박 모션에 따른 해양플랜트용 아웃리거 대빗 구조 안정성 평가
김지선(Jisun Kim),최주형(Joohyoung Choi),김정환(Jeonghwan Kim),배징도(Jingdo Bae),최영삼(Yeongsam Choi) 대한기계학회 2016 대한기계학회 춘추학술대회 Vol.2016 No.12
Recently, as marine accidents increase, there is the growing importance of design about safety equipment installed ship and offshore structures. Out-rigger davit is one of the life-saving apparatus and is installed on the offshore plant. it helps urgent escape in emergency situations because it is fixed on the outside of ship. Unlike a typical davit, it is essential to verify its design because of its unstable structural characteristic. In this study, in the light of its installed environment, the design of out-rigger davit is evaluated by applying ship motion based rule.