Yong-Kuk Jeong

Development of a Generic-YWBS for Engineering Integrated Management of Sailing Yacht

To develop a sailing yacht successfully, systematic engineering information is required including technologies from various companies and know-how about sailing yacht. The engineering information about sailing yacht has a complex and extensive structure. Therefore, a robust and high-level of management system is needed to manage the information. In this paper, we design and propose Generic-YWBS (Generic-Yacht Work Breakdown Structure), a work breakdown structure for sailing yachts. The Generic-YWBS is aimed at constructing sailing yachts and contains contents about product- and process-oriented information of sailing yachts. In addition, the Generic-YWBS plays an important role in managing the engineering information as a basic schema of database and system architecture. The Generic-YWBS is derived from fundamental WBS design processes and various rules about sailing yachts, for example, ISAF (International Sailing Federation) equipment rule and IRC rating rule, and a generic structure concept is applied for flexibility. The Generic-YWBS is applicable for various purposes. We designed a detailed code system in order to apply the Generic-YWBS to contents management system. The series of activities are realized through a web-based RIA(Rich Internet Application) program. This program manages the YWBS structure in an XML schema, and the Generic-YWBS management application offers a customizing function to be adapted in the field.

Development of an evaluation framework of production planning for the shipbuilding industry

ABSTRACT Shipbuilding competitiveness can be improved by implementing a production planning system that reflects production environments and can achieve a high degree of completion. Unfortunately, even South Korean shipbuilders, which are the world’s most competitive, lack relevant research on the objectives, and a comprehensive evaluation method for the systemisation of the production planning process and the results of production planning. This study proposes a comprehensive ship production planning process by analysing production planning tasks executed in major South Korean shipyards. In addition, it proposes an evaluation framework and an evaluation system to assess production planning based on an integrated production planning process. The evaluation framework consists of the planning stage and the stage of operation in a company, thereby enabling evaluation of production planning from multiple perspectives. In addition, while establishing the evaluation system for the results of production planning in large-scale shipyards, the study presents the core items necessary to introduce and build a real evaluation system through the framework.

Computational Shipyard Dynamics

Early simulations focused mainly on virtualizing the shipyard itself and the approach in terms of production management that focuses on improving productivity was hardly sufficient. For systematica ...

A ship block logistics support system based on the shipyard simulation framework

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.

Development of a Naval Vessel Compartment Arrangement Application using Differential Evolution Algorithm

Received 27 May 2014; received in revised form 20 August 2014; accepted 25 August 2014ABSTRACT Unlike other weapon systems, a naval vessel has unique characteristics in that the vessel itself isa naval unit. In limited space, compartments with various objectives and characteristics need tobe arranged, so that vessel performance is maximized. This paper studied a compartmentarrangement algorithm that considers activity relationships among compartments and survivabil-ity of a vessel. Based on the study, a compartment arrangement application is developed thatcan generate various layout alternatives swiftly. The application developed in this study aims atautomating a two dimensional compartment layout problem. A combinatorial optimization isperformed with the differential evolution algorithm to achieve the optimized layout.Key Words: Combinatorial optimization, Differential evolution, Layout design, Naval vesseldesign, Survivability, Vulnerability