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단위 특징형상 단순화를 이용한 개선된 특징형상기반 단순화 방안
윤여운(Yeoun Yoon),김병철(Byung Chul Kim),한승호(Seung Ho Han) 대한기계학회 2014 대한기계학회 춘추학술대회 Vol.2014 No.11
For engineering activities such as engineering analysis, distributed collaborative design, and virtual prototyping, it is needed to simplify detailed CAD models. Among the proposed methods so far, it is known that feature-based simplification is the most suitable method to apply to these applications. The previous feature-based simplification methods focused on the feature suppression and the feature rearrangement. In case that a feature has complicated shape or a CAD model has only additive features, it is difficult to obtain the proper simplified model because the previous methods perform the simplification by using a feature as a minimum unit. To resolve this problem, we propose an enhanced feature-based simplification method using unit feature simplification. This method simplifies a CAD model by simplifying unit features according to their type. This paper introduces the unit feature simplification method.
단위 특징형상 단순화를 이용한 특징형상기반 모델의 점진적 단순화
윤여운(Yeoun Yoon),김병철(Byung Chul Kim) (사)한국CDE학회 2015 한국 CAD/CAM 학회 학술발표회 논문집 Vol.2015 No.하계
In feature-based simplification, it is important to control the level of detail (LOD) of a CAD model. The LOD in feature-based simplification is affected by the number of features, because the previous methods for feature-based simplification used features as a minimum unit of simplification. It is, therefore, difficult to control the LOD of a CAD model if the model consists of a small number of features or only additive features, or the model contains features with complex shapes. To solve this problem, we propose the unit feature simplification, wherein a feature is progressively simplified. In addition, the implementation and experiment results are presented.