![]() Vast body of literature is available which presents techniques for automatic or semi-automatic simplification of CAD models. ![]() Owing data-compatibility gap between Computer Aided Design (CAD) and Computer Aided Engineering (CAE) simplification-idealization is needed for CAD data to be processed by CAE applications. Using this method, a more practical and usable mid-surface model can be very efficiently generated from a solid model because it can circumvent not only the tedious trimming and extension processes of the medial axis transformation method but also the time-consuming patch joining process of the mid-surface abstraction approach. Finally, a surface model is generated by splitting large faces paired in the thinned solid model, selecting one face per pair for creating a sheet model, and sewing the selected faces. Next, the solid model itself can be converted into a degenerate solid model with zero thickness. First, the model is simplified by the removal of any detailed features whose absence would not alter its overall shape. In this method, a solid model is assumed to be created by using air to inflate a shell that comprises the surface of the solid model. In order to derive a mid-surface model from a thin-walled solid model, in this paper, we propose a novel approach called the solid deflation method. A simplified geometric model with lower dimensionality, such as a mid-surface model, is often preferred over a detailed solid model for the analysis process, if the analysis results are not seriously impacted.
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