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Abstract: The
offset of finite element mesh has three basic conditions: continuous
mesh, consistent normal and offset rationality. A fast and effective
normal consistent algorithm, seed element method, is presented. The
judge methods of offset rationality is deduced at element local
coordinate, and ensure that the element plane distance between after
offset and before is close to the offset distance. The validity is
conformed by the simulation results of the complex industry-forming
product.
Key
words: Automobile
panel forming surface Offset algorithm Seed element method Finite
element mesh
CLC No: TG38
国家自然科学基金(19832020)和国家杰出青年基金(10125208)资助项目. Received 20030409, received
in revised form 20030910
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