• 대한조선학회논문집
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• 제47권4호
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• pp.613-627
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• 2010

Ships and off-shore plants have very long lifecycles. Design data of ships and off-shore plants are used as master data in the subsequent phases after the design phase. Therefore, it is an important issue how to convert native design data generated from commercial shipbuilding CAD systems into neutral data with the use of international industrial data standards. International standard-based exchange of ship outfitting and off-shore plant data needs the construction of a library for specifications data of equipment and materials and the provision of external referencing mechanism for retrieving data stored in the library. This paper proposes an approach to construct a specifications data library with the use of ISO 15926 process plants. This library is used for providing specifications data through external referencing when translating ship outfitting data from TRIBON system into ISO 10303 STEP AP 227-formed data.

• 한국경영과학회:학술대회논문집
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• 대한산업공학회/한국경영과학회 2006년도 춘계공동학술대회 논문집
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• pp.1342-1349
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• 2006

오늘날의 제품개발환경은 분산환경에 존재하는 다양한 역량을 가진 참여자들의 협업을 요구하고 있으며, 협업은 참여자들이 필요로 하는 제품개발관련 정보들의 실시간 교환을 지원할 수 있도록 제품정보 간 상호운용성 확보를 기반으로 한다. STEP으로 알려진 ISO 10303은 제품개발의 전체적인 라이프사이클에서 필요한 제품정보의 표현과 공유 및 교환을 위한 대표적인 표준이다. 하지만 STEP을 이용하기 위해서는 각 도메인이 표준인 STEP 모델에 기반하여 제품정보를 모델링 하여야 한다. 그러나 대부분의 도메인은 자신의 목적에 따라 특화된 모델을 정의하고 사용하기 때문에 도메인에 특화된 형태의 제품정보모델을 STEP 모델로 변환할 수 있는 추가적인 메커니즘이 필요하다. 즉, STEP은 참조모델보다는 모든 도메인에서 제품정보모델링을 위해 사용가능한 표준의 정의에 초점을 맞춘다. 그러므로 참조모델로서의 STEP을 기반으로 다양한 도메인 특화된 제품정보모델 간 상호운용성 확보를 지원하기 위하여 본 논문에서는 STEP 제품정보모델의 시맨틱스를 체계적으로 정의할 수 있도록 온톨로지 구축을 통한 컨셉추얼 모델링을 수행한다. 컨셉추얼 모델링은 STEP 모델에 정확하고 완전한 의미를 부여하여, 다양한 도메인 특화된 모델 사이의 상호운용성 확보를 지원하고 참조모델로서 STEP의 능력을 확장한다.

• 한국경영과학회:학술대회논문집
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• 한국경영과학회/대한산업공학회 1999년도 춘계공동학술대회:정보화시대의 지식경영
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• pp.572-578
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• 1999

The product information is defined as the information that is obtained in the whole life cycle of a product from design and manufacturing to marketing and it carries out the important role under the changeful environment. It is necessary to use computers for efficient product data sharing. But, in practice, because of various product data types and heterogeneous computing environment, it is difficult to share the product information among different computer systems. This paper presents the methodology for sharing the product information without a hitch in he-terogeneous computing environment by using the international standard of the product information ISO-10303 STEP and CORBA.

• 한국컴퓨터정보학회:학술대회논문집
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• 한국컴퓨터정보학회 2015년도 제52차 하계학술대회논문집 23권2호
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• pp.198-200
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• 2015

건설산업의 전자도면 작성을 위한 CAD분야는 해외 특정 소프트웨어가 시장을 90%이상 점유하여 기술종속으로 인한 CAD 기술의 자립화 문제가 심각하다. 건설산업에서 발생하는 전자도면의 작성을 위한 프로그램 사용은 자유경쟁을 통한 시장의 흐름에 따른 것이나, 공공기관에서 발주하는 건설사업의 전자도면 관리와 재활용을 위해서는 특정 회사의 과다 독점으로 인한 기술종속에 대한 대책이 필요하다. 따라서, 다양한 CAD 시스템에서 작성한 전자도면을 국내표준에 부합하는 도면으로 변환 가능한 모델러의 개발 방안을 제안한다.

• 한국CDE학회논문집
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• 제18권3호
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• pp.234-242
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• 2013

Different CAD systems are used in ship outfitting design on different usage and purpose. Therefore, data exchanges between CAD systems are required from different formats. For data exchange, boundary representation standard formats such as IGES and ISO 10303 (STEP) are widely used. However, they present only B-rep representation. Because of different CAD systems have their own geometry format, data exchanges with design intend are difficult. Especially, Tribon and PDMS use primitives for express their geometry in ship outfitting design. However, Tribon primitives are represented their parameter by values that are non-parametric. Therefore, data size of catalogue library is bigger than different CAD system using parametric primitive representation. And that system has difficulty on data reprocessing. To solve that problem, we discuss about shape DB which contains design parameters of primitive for exchange Tribon primitives. And geometry data exchange between Tribon and Shape Database that defines based on PDMS scheme are specified using primitive mapping that can represent design intend.

• 대한기계학회논문집A
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• 제31권6호
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• pp.635-643
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• 2007

As many engineers and technicians are involved in the design process of large scale and/or complex products, there are a lot of miss matches and interferences due to designers' faults and several kinds of CAD systems. Recently, CAD systems are applied to verify and check the assembly process. Digital Mock-Up(DMU) system, a tool to build a virtual mock-up in the design stage, has been used to prevent the interferences and miss matches during precision design processes. Using the virtual assembly tool, engineers are able to design precision and interference free parts without physical mock-ups. Instead of a single CAD source, several CAD systems are used to design a complex product. Several organizations are involved in the distributed design environment for heterogeneous multi-CAD assembly. XML and the lightweight CAD file are proposed for the multi-CAD assembly. XML data contains hierarchy of the heterogenenous multi-CAD assembly. STEP PDM schema and STEP ISO 10303-28 formations are applied to construct the XML data. The lightweight CAD file produced from various CAD files through ACIS kernel and InterOp not only contains mesn, B-Rep and topological data, but also is used to visualize CAD data and to verify dimensions. Developed system is executed on the desktop computers. It does not require commercial CAD systems to visualize 3D assembly data. Real-time interference and fitness checks, dimensional verification, and design and assembly verification are performed on the developed system. Assembly of heterogeneous models for a car is conducted to verify the effectiveness of the developed DMU system on the Internet.