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자기적 비선형을 고려한 Moving Magnet Linear Actuator의 설계 및 동특성 해석
황규환(Kyu-Hwan Hwang),김철한(Chul-Han Kim),전계록(Kyeo-Lock Jeon),조윤현(Yun-Hyun Cho) 전력전자학회 2003 전력전자학술대회 논문집 Vol.2003 No.11
This paper is proposed a new linear actuator with the permanent magnet on the mover. This linear actuator is designed to produce the vibration of a osillator. In order to evaluate its dynamic performance, the equivalent coupling parameter between mechanical and electromagnetic equations of the linear actustor, which is considered the magnetic nonlinear phenomena, is analyzed by the finite element method and estimated the thrust, displacement and acceleration with the simulation values and the experimenta ones.
해외 플랜트 프로젝트의 시공 이전 단계 표준 업무 프로세스 구축
탁현우(Hyun-Woo Tak),원서경(Seo-Kyung Won),황규환(Kyu-Hwan Hwang),한충희(Choong-Hee Han),이준복(Jun-Bok Lee) 대한설비공학회 2010 대한설비공학회 학술발표대회논문집 Vol.2010 No.6
Recently Overseas plant construction projects are increasing in the Middle East regions. These projects require various license management and technologies for the manufacturing and handing processes. Additionally, the efficiency of pre-construction process management determines the success or failure of the business. Nonetheless, there exist various risks involved in the EPC pre-construction processes due to lack of experience and management techniques. The objective of this paper is to analysis the standard business process of LNG plant throughout pre-construction phase, and identify the knowledge and information data Modeling. The study also plans to build a comprehensive knowledge management system throughout the whole life cycle as its final objective.