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Aveva Marine 배관 모델을 SmartMarine3D 배관 모델로 변환하는 방법
천상욱(Sanguk Cheon),이재준(Jae-Jun Lee),조민철(Min-Cheol Cho),이광(Kwang Lee) (사)한국CDE학회 2013 한국CDE학회 논문집 Vol.18 No.5
At shipyards, to enable design cooperation with engineering companies or to meet ship owner’s requirements, there is a need to translate ship models from one ship CAD system to another ship CAD system. In this paper, a method for translating pipe models from Aveva Marine to SmartMarine3D is introduced. Related data and architecture of translation system are addressed and specific details to be considered during translation are explained. The introduced method has been implemented and tested in a shipyard.
경량모델 기반 플랜트 구조물에 대한 동일 형상 판별 방법
천상욱(Sanguk Cheon),권기연(Ki-Youn Kwon) (사)한국CDE학회 2020 한국CDE학회 논문집 Vol.25 No.2
Lightweight models are widely used for visualizing and sharing large data in ships and plants. To minimize the file size and increase visibility, this model is mainly composed of triangular elements. Generally, ships and plants are composed of numerous thin metal plates, pipes and beams. These structures contain a large number of identical shapes. In this paper, we propose a method that can exactly determine identical shapes based on a lightweight model. The area and volume are compared for each part. Then, the boundary edges are extracted using triangular elements. The feature points are generated based on edge vertexes, bounding box, principle axis and secondary axis. Finally, the ICP (iterative closest point) is used to determine if thee feature points are in the same position.
기하적인 형상 변형을 이용한 선박 브라켓 부재의 역변형 설계
천상욱(Sanguk Cheon),김형철(Hyeong-Cheol Kim) (사)한국CDE학회 2013 한국CDE학회 논문집 Vol.18 No.5
A method of designing a manufacturing shape of ship plate parts considering welding deformation is introduced. In this paper, the design shape of a bracket is deformed not by a thermoelastic method but by a pure geometric method. Deformation quantities are estimated based on data captured in the field and then a manufacturing design shape is obtained by deforming an original design shape by a geometric deformation method. The proposed method has been implemented and tested in the shipyard.
참조 모델과 설계 이력 데이터를 이용한 자동차 기구 요소의 지식 기반 설계 시스템 개발
천상욱 ( Sanguk Cheon ) 대한설비관리학회 2020 대한설비관리학회지 Vol.25 No.2
Reusing existing design data in product design can save resources by reducing the design data discussion process and redundant design work. The purpose of this paper is to improve the reuse rate of existing design data, reduce the quality problem of the model in the initial design stage, and to minimize the cost of frequent design changes. In order to support the effective inference process of knowledge-based design system, the types of product models were classified through characteristic analysis of design work. We apply the case-based and rule-based inferencing methods to support design knowledge reasoning so that the similarity of design data can be determined. The ontology model that defines the design history is designed using reference models, and the error of the redesigned CAD model of Class-3 is evaluated. The suggested design support method is implemented using XpertRule and is applied to automotive mechanical components.