Using geometric method, the mathematic model of grinding quadratic surface with cup wheel and the trace of the cup wheel are derived.
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Geometric model was extracted through ACIS, manufacturing feature was recognized reconstructed through establishment of manufacturing feature library and using of Rule-based method.
通过ACIS提取几何模型信息，建立制造特征库与采用基于规则的方法实现对制造特征的识别与重构。
Using energy method, the geometric non-linear of higher bridge pier is analyzed.
考虑地基弹性变形影响，用能量法对高桥墩进行几何非线性分析。
Thereby, a 3d geometric model for a chaser is demonstrated by using this method.
应用此方法，建立了某驱逐舰的3d几何模型。
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