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Seoul, South Korea

Lee P.,Xinnos Co. | Hwang I.,Seoul National University | Woo J.,Xinnos Co. | Park S.,Hongik University | And 2 more authors.
Transactions of the Korean Society of Mechanical Engineers, A | Year: 2011

Nowadays, environmentally friendly technology is attracting considerable attention because of environmental pollution and the increasing price of raw materials. Korea has a high level of dependence on exports, and therefore it has stressed the development of environmentally friendly technologies. Bicycle manufacturing industry has a bright future because bicycles do not use fossil fuels, and cycling is good for one's health. We develop a management system for the effective development of next-generation environmentally friendly technology for bicycles. The goal is to promote the bicycle industry in Korea while keeping the product in the low to medium price range. © 2011 The Korean Society of Mechanical Engineers.

Woo J.H.,Korea Maritime and Ocean University | Back M.G.,Seoul National University | Lee P.,Xinnos Co. | Park J.G.,Samsung | Heo H.Y.,Samsung
Proceedings of the International Offshore and Polar Engineering Conference | Year: 2015

Global shipbuilding industries are going through the substantial change after the global financial crisis, then the Korean shipbuilding companies (mostly common carrier constructors) are being in dangerous situation. Current competitiveness of the global shipbuilding industry is moving to China based on the low labor cost. Whereupon, Korean shipbuilding industry, with heavy industry as the central figure, are trying to rise the portion of the offshore plant construction for the purpose of resource development of deep sea. Meanwhile, the most outdated part of the offshore plant business of Korea is zoomed in on the development technology including FEED (Front End Engineering development) and deep water floaters comparing with the advanced companies of USA and Europe. This made the domestic government invest most of the R&D funds in product and equipment development field. However, huge loss of mega shipbuilders such as Samsung, Hyundai and Daewoo is occurring at construction stages owing to the big delay of production processes while the development engineering are being supported by foreign engineering companies. These tremendous financial losses is thought to spring from absence of management capability with respect to the huge quantity and complex outfitting works of topside structure. In this paper, we are going to investigate the strategy for the advancement of the production management fit for offshore plant business. Then, robust and sustainable technical roadmap is going to be described based on current IT technologies and simulation based management methods. Copyright © 2015 by the International Society of Offshore and Polar Engineers (ISOPE).

Jeong Y.-K.,Seoul National University | Lee P.,Xinnos Co. | Nam S.H.,Seoul National University | Lee D.K.,Mokpo Maritime University | Shin J.-G.,Research Institute of Marine Systems Engineering
Procedia CIRP | Year: 2015

The environmental profiles certification means a method about assessment of environmental performance for building materials in building industries. This research discusses the methodology for the environmental impact evaluation and support system for composite boats manufacturing process using environmental profiles certification concepts. For this work, the generic yacht work breakdown structure (G-YWBS) which is developed for yacht engineering management system was used. The G-YWBS is detailed component breakdown structure, focused on the lifecycle of yacht including project management, manufacturing process, maintenance process, product information, and all the other relation things. Finally, environmental impact evaluation system was developed to calculate the environmental impact from the composite boat manufacturing process based on the G-YWBS. © 2015 The Authors. Published by Elsevier B.V.

Nam S.,Seoul National University | Lee D.K.,Mokpo Maritime University | Jeong Y.-K.,Seoul National University | Lee P.,Xinnos Co. | Shin J.-G.,Seoul National University
International Journal of Precision Engineering and Manufacturing - Green Technology | Year: 2016

The number of studies on the environmental impact of products and services has increased in order to protect the environment. Recently, environmental impact assessments (EIA) and life cycle assessments (LCA), typically used for evaluating environmental impacts, have been gaining in popularity. Accordingly, this study performed an EIA using LCA methodology focusing on the manufacture of composite small craft. A work breakdown structure (WBS) is used in most shipyards to manage the overall life cycle of a craft. Therefore, for the EIA performed as part of this study, the generic WBS for environment (GWBSE) was defined by utilizing existing shipyard information. Unlike a general WBS with a determined structure, the GWBSE structure supports different combinations depending on the objectives; the EIA can be performed by combining different methods, materials, and product structures used in the manufacturing process for composite craft. Further, this study developed an application to effectively perform EIA utilizing GWBSE. The EIA was performed according to the manufacturing method and the combination of materials used for small leisure craft; the results were then analyzed. © 2016, Korean Society for Precision Engineering.

Song Y.J.,Seoul National University | Lee D.K.,Seoul National University | Woo J.H.,Xinnos Co. | Shin J.G.,Seoul National University
Journal of Ship Production | Year: 2010

Shipyard design and the equipment layout problem, which is directly linked to the productivity of ship production, is an important issue in the production planning of mass production of ships. In many cases, shipbuilding yard design has relied on the experience of the internal engineer, resulting in sporadic and poorly organized processes. Consequently, economic losses and the trial-and-error involved in such a design process are inevitable problems. In this paper, a checklist of major elements is defined in order to fine-tune the shipbuilding yard designing process. The input/output data based on the simulation of a shipbuilding yard layout designing framework and methodology proposed in previous research is also defined. Initial architecture is executed to develop software that integrates all the relevant processes and designing tools. In this course, both user request and design data by the steps are arranged and organized in the proposed layout design template form. In addition, simulation is carried out based on the parent shipbuilding process planning and scheduling data of the ship product, shipbuilding process, and work-stage facilities that constitute the shipbuilding yard. In addition, design items are verified and optimized with a layout and equipment list that shows optimal process planning and scheduling effects. All of the content of this paper is based on the simulation-based shipbuilding yard layout designing methodology, while the initial architectural processes are based on object-oriented development methodology and systems engineering methods.

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