Abstract
Many engineering models are geometrically expressed by piecewise continuous composite-surface made up of simple smooth surface-patches in CAD modeling. This CAD model is usually too complicated for conventional numerical methods like finite dement method(FEM) or boundary element method(BEM) or element free method(EFG) to perform instant simulation of many industrial requirements. This makes it very meaningful to develop numerical methods fit for CAD needs.
This paper presents a numerical method that can fast and accurately compute mechanical properties of object with composite-surface structure. The method regards a simple surface-patch on the composite-surface as a computational unit, construct a framework of the composite-surface with all the boundary areas by dividing each unit into boundary area and inner area, and adopts FEM to build the Computing equations for the framework and BEM/EFM to build the Computing equations for the inner areas of all the units. The method is simpler and easier than conventional numerical methods both in mesh generation and in calculation.
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© 2004 Springer Science+Business Media New York
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Wang, X., Shi, JL. (2004). Patch Unit Method for CAD Surface Models. In: Yan, XT., Jiang, CY., Juster, N.P. (eds) Perspectives from Europe and Asia on Engineering Design and Manufacture. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-2212-8_9
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DOI: https://doi.org/10.1007/978-1-4020-2212-8_9
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-015-7003-9
Online ISBN: 978-1-4020-2212-8
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