Classification and definition of geometric parameters of compartments of complex structural body models

Abstract

For a safety estimation of complex structural body models, definition of geometric parameters such as a volume and center of volume is essential. Thus, it should change modeling information of face structure to B-rep or CSG form for definition of geometric parameters through each section categorization on the commercial CAD systems. But, complex structural body models can cause error while it is transformed to B-rep or CSG or too much time is spent for each face selection. And, CAD system using in almost ship yard is uncomfortable to input offset information as manual to define for each section volume, geometric parameters and then that CAD system is outside program which is paying license fee every year. Therefore, this research has developed automatic system which calculate geometric parameters each section and classify each section of complex structural body models without limitation for solid modeling and section information.1. 서 론 1 2. 개발 도구 2.1 개요 4 2.2 기하학적 모델 4 2.3 NURBS 모델링 5 2.4 IGES 8 2.5 Open CASCADE 10 2.5.1 개요 10 2.5.2 구조 15 3. 알고리즘 개발 3.1 개요 18 3.2 모델링 정보 입출력 21 3.3 모델링 객체 절단 24 3.4 절단된 단면 위의 선 분할 26 3.5 겹치는 선 및 돌출된 선 제거 29 3.6 구획을 구성하는 선 그룹화 30 3.7 구획을 구성하는 선 그룹의 반시계방향 확인 33 3.8 구획을 구성하는 선 그룹의 면 변환 36 3.9 구획을 구성하는 단면간의 연결성 확인 38 3.10 구획의 기하학적 요소 39 4. 결 론 48 참고문헌 4

    Similar works