Ikjune Kim

Securing design checking service for the regulation-based product design

When designing a product, a designer has to follow regulations involved in all phases of product lifecycle. However, it may be practically impossible for a designer to be well-acquainted with all the regulations related to a product. Therefore, from the viewpoint of a companys competitiveness, it is important to provide a tool which automatically checks design results of a product in accordance with the regulations involved. Outsourcing a design checking service instead of in-house development can be an appropriate choice, considering facilities, human resources, and cost required for developing and managing design checking tools. In this paper, the authors suggest a method to prevent the leak of intellectual property, which may occur when providing design checking services. This work also discusses necessary data exchanged between a design checking service provider and a manufacturer. Furthermore, this work details design checking service procedure and system architecture of a design checking service.

Design Verification System Framework of Pressure Vessels Using Korea Industrial Standards

Product regulations specify requirements or constraints for products that manufacturers must comply with across the entire product lifecycle, from design and manufacture, through operation and maintenance, to recycling and disposal. This paper suggests a system framework and its essential components for the verification of a pressure vessel design using the industrial standards of Korea. The authors also present methods to generate design template data from legacy design systems and to construct a regulation knowledge base. The proposed framework is demonstrated through experiments involving pressure vessel design verification using a prototype system.

Stepwise Volume Decomposition Considering Design Feature Recognition

To modify product design easily, modern CAD systems adopt the feature-based model as their primary representation. On the other hand, the boundary representation (B-rep) model is used as their secondary representation. IGES and STEP AP203 edition 1 are the representative standard formats for the exchange of CAD files. Unfortunately, both of them only support the B-rep model. As a result, feature data are lost during the CAD file exchange based on these standards. Loss of feature data causes the difficulty of CAD model modification and prevents the transfer of design intent. To resolve this problem, a tool for recognizing design features from a B-rep model and then reconstructing a feature-based model with the recognized features should be developed. As the first part of this research, this paper presents a method for decomposing a B-rep model into simple volumes suitable for design feature recognition. The results of experiments with a prototype system are analyzed. From the analysis, future research issues are sug

A Framework for Container Stowage Information Exchange Between Ships and Harbors Using RFID and Web Services

Abstract Efficient stowage plan is required for handling large number o f containers in a container terminal. Before a ship enters port, most of container terminal s prepare a stowage plan based on information received from the shipping company. If thi s information does not have the accurate information of containers in the vessel, the stowage plan might be often changed or sometimes it becomes useless. In order to avoid this problem, we apply RFID system in the container ship and we propose a framework for communication between ships and terminals using RFID and Web Services technology. ※Keywords: RFID(Radio Frequency Identification), Web services (웹서비스), Container vessel(컨테이너 선박), Container terminal(컨테이너 터미널) 1. 서론 컨테이너선이 점차 대형화 되어가고 선사의 빠른 서비스 요구에 대응해 컨테이너 터미널의 효율적인 양/적하 작업이 필요하다. 접수일:2009년4월16일, 승인일:2009년8월 27일 †교신저자: shhan@kaist.ac.kr, 042-350-3080 한 예로 6,000 TEU 컨테이너 선단이 13,000 TEU급으로 대형화 되면 하역 효율은 4배로 늘어나야 한다. 양/적하 작업의 효율성을 높이기 위해서, 터미널에서는 양/적하 작업 이 실행되기 훨씬 전에 양/적하 계획을 세운다. 이러한 사전계획은 선박의 입항 전, 선사에서 받은 컨테이너 선적정보를 바탕으로 세워지기