스크류운동을 하는 자유형상 물체의 스웹볼륨 계산을 위한 추적법의 응용Applying a Tracing Method to Compute Swept Volumes Generated by Free-form Objects in Screw Motions
- Other Titles
- Applying a Tracing Method to Compute Swept Volumes Generated by Free-form Objects in Screw Motions
- Authors
- 김형규; 김재정
- Issue Date
- Apr-2010
- Publisher
- 한국CDE학회
- Keywords
- Swept volume; Screw motion; Envelope; Tracing method
- Citation
- 한국CDE학회 논문집, v.15, no.2, pp.106 - 114
- Indexed
- KCI
- Journal Title
- 한국CDE학회 논문집
- Volume
- 15
- Number
- 2
- Start Page
- 106
- End Page
- 114
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/175099
- ISSN
- 2508-4003
- Abstract
- The swept volume, the region of a moving object, is applied in many fields such as valid paths for motions of tools, visualization in robot paths and interference tests for parts assembling or disjointing. The shape of a swept volume depends on an generators computed with normal vectors of an object and velocity vectors of a motion. Although free-from surfaces are widely used to represent geometric models in CAD, computing the generators for a free-form object is a formidable task. Previous approaches exploit the closed form expressions of generators but limited to planer or quadric faces. In this paper,we propose the algorithm to compute swept volumes generated by free-form objects in screw motions. For the algorithm a tracing method is applied to the computation of generators. It considers curvatures of surfaces of an object to increase the computational accuracy. We implemented our algorithm in the CATIA V.5 environment to test the validity of our algorithm and to generate examples.
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