Xinnos Co.

Seoul, South Korea

Xinnos Co.

Seoul, South Korea
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Jeong Y.-K.,Seoul National University | Kim B.-S.,Seoul National University | Shin J.-G.,Seoul National University | Lee P.,Xinnos Co. | And 2 more authors.
Proceedings - Winter Simulation Conference | Year: 2017

The block logistics in shipyard accounts for a considerable proportion of the production cost. And further, it used to effects serious delays on the shipbuilding processes in typical cases. However, the planner hardly incorporate the logistics into serious consideration due to its various restriction at the stage of production planning. In this paper, a simulation-based ship block logistics support system is suggested. With which, the block logistics is to be simulated according to the various production plans and operational strategies of shipyards. The suggested system will allow planners and the management to determine the current state of logistics and to have the insight of improvement as well, reflecting effectively the constantly revised production plan of the shipyard. In addition, the system can be easily adapted to the any shipyard, since it has been developed based on a shipyard simulation framework which can be extended properly with its scalable components. © 2016 IEEE.

Woo J.H.,Xinnos Co. | Song Y.J.,Seoul National University | Kang Y.W.,Daewoo Shipbuilding and Marine Engineering | Shin J.G.,Seoul National University
Journal of Ship Production | Year: 2010

Nowadays, the simulation technology aiming at preverifying extensively continues to develop in the manufacturing industry. Though it is possible to apply simulation methodology to various fields in various methods, in particular, the computer simulation of the production system in the manufacturing industry is applied most extensively. Lots of shipyards have made continual studies of the improvement plans on logistics operation of shipyards to cover the ship product constructed anew that consists of various ship types increasing day by day in the fixed area of the yard in recent years. The block to form a ship, a transporter to transfer the block, and the jig that is the support of the block are related physically, and the planning and scheduling and the operating scheme of the distribution are related informatively in the logistics of the shipyard. We introduce cases to build the decision-making system with which one can perform the logistics verification on the planning and scheduling and the assessment of the quantitative effect of the changes of the shipyard layout.

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.

Lee J.Y.,Sungkyunkwan University | Kang H.S.,Sungkyunkwan University | Noh S.D.,Sungkyunkwan University | Woo J.H.,XINNOS CO. | Lee P.,XINNOS CO.
International Journal of Computer Integrated Manufacturing | Year: 2011

Generally, the generation of a simulation model is both a time- and cost-consuming task within processes for performing simulation. Therefore, reuse of the simulation model that is once generated based on a huge amount of information/data is an essential and important issue for simulation engineers. It is more difficult to exchange a reusable simulation model across heterogeneous simulation systems because these systems have different structures and modes of expressing information even if the contents are the same. A neutral file format has been proposed as a methodology to solve this kind of problem in the exchange of simulation models between simulation and other manufacturing applications. Towards this end, in this article, NEutral SImulation Schema (NESIS) is defined based on several neutral file formats such as NIST SDM, SDX and PLM Services; then, a system architecture is designed and implemented based on the proposed neutral simulation model for an interoperable environment. The target commercial simulation applications in this article are QUEST and Plant Simulation. Therefore, interfaces for each of these commercial systems are developed. As a case study, NESIS and the developed simulation model exchange system are practically applied to a Korean automotive parts assembly line. So the result of application shows that it is possible to effectively work collaboratively in a distributed environment. To elaborate, if simulation modelling is once completed in a commercial simulation application, there is no more need to model for different kinds of applications. Therefore, the time and effort for modelling the same target is greatly reduced for different kinds of simulation applications. The reduction in the time and effort for simulation will ensure effective concurrent engineering. © 2011 Taylor & Francis.

Lee P.,Xinnos Co. | Lee D.-K.,Seoul National University | Back M.-G.,Seoul National University | Oh D.-K.,Mokpo Maritime University | Choi Y.-R.,Xinnos Co.
Transactions of the Korean Society of Mechanical Engineers, A | Year: 2012

The business environment is changing rapidly because of the global crisis. In order to survive and enhance competitiveness in the global market, global manufacturing companies are trying to overcome the crisis through the convergence of production infrastructure and IT technology. The importance of systems to support the integration of manufacturing processes, collaboration in product development, and information integration of providers and producers is therefore increasing. In this paper, research is conducted on the design and implementation of a collaboration system to support a power-boat manufacturing company in this situation of increased demand for collaboration and information integration. The system was designed through product-structure and production-process analysis, support product data management, and enterprise contents management. The company involved in the power-boat development project is expected to show an improvement in productivity through the integrated management of information and collaboration provided by this system. © 2012 The Korean Society of Mechanical Engineers.

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.

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.

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).

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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