Time filter

Source Type

Daejeon, South Korea

Kim E.,Sejong University | Hwang J.,PartDB Co. | Hahm G.-J.,Broadcastingand Telecommunications Media Research Laboratory | Lee J.H.,Daegu University
Computers in Industry | Year: 2015

3D CAD data have not only part geometry but also product structure information and manufacturing-related properties. Visualizing part geometry with these data on internet is useful in downstream product development. Web visualization standards provide a way to develop visualization tools independent from a CAD system. This paper proposes a method for using the X3D visualization standard to include part geometry, product structures, and manufacturing-related properties simultaneously. 3D CAD data are extracted from a CAD system and translated into the X3D standard. A translator system and a web viewer system are implemented to verify the proposed approach. A test using three different 3D CAD files is conducted to evaluate the performance of the proposed approach. According to the results, the proposed X3D data set is better visualized than data in the VRML standard. © 2015 Elsevier B.V. All rights reserved. Source

Lee J.,Kyungpook National University | Kim I.,Korea Atomic Energy Research Institute | Lim C.H.,Korea Institute of Industrial Technology | Hwang J.,PartDB Co. | Mun D.,Kyungpook National University
Transactions of the Korean Society of Mechanical Engineers, A | Year: 2015

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. © 2015 The Korean Society of Mechanical Engineers. Source

Shin S.,Korea Advanced Institute of Science and Technology | Kang Y.,Korea Advanced Institute of Science and Technology | Lee H.,Korea Advanced Institute of Science and Technology | Kim B.,PartDB Co. | And 3 more authors.
Future Application and Middleware Technology on e-Science | Year: 2010

Virtual digital mock-up (v-DMU) refers to all of the activities in the design, analysis, and visualization of the product in a 3D virtual environment that lead to a lower cost and a higher quality. In the early days, designers exchanged CAD files directly in collaborations. Recently, DMU systems have been used for relatively effective designs that generally support distributed and collaborative design capability by sharing the design data via the Internet. However, a range of problems can arise in such a case. In the case of large-scale products such as aircrafts or ships, the data size can be on a scale so large that it requires large amount of space on the workstation and requires considerable time for exchanges. Moreover, security problems often occur in the process of data exchanges. For a company and a nation, this can be crucial. The immersive visualization of product design data is becoming more important in collaborative design. As a solution to these issues, this paper proposes a new approach using the technology of the remote visualization of CAD data. This involves the streaming of rendered graphics using COVISE and SAGE. This paper also introduces the implementation of v-DMU based on e-Science by remote visualization. © 2010 Springer Science+Business Media, LLC. Source

Kim I.,Korea Advanced Institute of Science and Technology | Lee J.,Kyungpook National University | Mun D.,Kyungpook National University | Jun H.,Hongik University | And 3 more authors.
Computers in Industry | Year: 2012

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 company's 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. © 2012 Elsevier B.V. All rights reserved. Source

Li J.,KAIST | Kim I.,KAIST | Lee S.,KAIST | Han S.,KAIST | And 7 more authors.
Journal of Marine Science and Technology | Year: 2011

In the shipbuilding industry, different computer-aided design (CAD) systems are used for different design domains, structure, and outfitting. We need to exchange data among different CAD systems such as Tribon, AutoCAD, Intergraph or PDMS to complete the whole design and production process. There are two approaches to data exchange. One is direct translation; the other is indirect translation, which is based on a neutral format. If we use a neutral format, the data specification is open to the public and the design model can be used by other CAD systems, including next-generation CAD systems. In this paper, we propose an indirect method that uses ISO 10303 (STandard for the Exchange of Product model data) AP227 and ISO 15926 to define neutral formats. A separate ShapeDB is constructed to manage the geometry information, referenced to the catalogue data defined by ISO 15926. An experimental implementation for data exchange between Tribon and PDMS is described. © 2010 JASNAOE. Source

Discover hidden collaborations