As a feature sensitive meshing investigation, this paper focuses on the identification and meshing of four categories of features specific to automotive body panels, namely beads, fillets, flanges and tabs. An improvised and enhanced medial axis based strategy is proposed for identifying the aforementioned features. Appropriate boundary discretisation, inclusion of zero medial vertex case for annulus identification, medial axis topology modifications to eliminate undesirable pathologies, T-junction squaring with cubic filtering smoothing highlight some of the improvisations to the medial axis technology employed. Ridge curves representing the crest lines of beads and fillets are extracted and inserted on the face. A combination of multi-blocking, clamping and face node-loop insertion, followed by boundary connection strategies are used to generate high fidelity, feature sensitive, quasi-structured meshes.

作为对特征敏感的网格化研究，本文着重于汽车车身面板特有的四类特征的识别和网格化，即胎圈，圆角，凸缘和凸耳。提出了一种改进的基于中间轴的策略来识别上述特征。适当的边界离散，包括零个中间顶点的情况以进行环形识别，修改中间轴拓扑以消除不良病理，采用三次滤波平滑的T形结平方突出了对所采用的中间轴技术的一些改进。岭曲线代表珠子和鱼片冠线的提取并插入到脸上。结合多块，夹紧和面节点循环插入，再加上边界连接策略，可以生成高保真度，特征敏感的准结构网格。