Adaptive tetrahedral remeshing for modified solid models
- 作者：Hua Zhu zhuhua@cad.zju.edu.cn ; Shuming Gao ; smgao@cad.zju.edu.cn ; Ming Li liming@cad.zju.edu.cn ; Wanbin Pan panwanbin@hdu.edu.cn
- 关键词：Adaptive remeshing ; Mesh reuse ; Mesh size function ; Advancing front method ; CAD-CAE integration
- 刊名：Graphical Models
- 出版年：2012
- 期刊代码：130_15240703
- 类别：cp
- 出版时间：July, 2012
- 卷：74
- 期：4
- 页码：76-86
- 文件大小：1785 K
摘要
During the engineering design process, a designed engineering component is usually repeatedly modified and analyzed to reach final design objectives, and completely mesh regeneration for each design change is very time consuming. An efficient remeshing approach for modified solid models using existing prior existing meshes is proposed in this paper to resolve this issue. It is mainly achieved via three main steps: different face (between the input model and its modification) identification, local destruction zone generation, and local mesh regeneration. In this approach, by carefully selecting a destruction zone to be removed from the original mesh model, a final geometric adaptive mesh model of the modified model is generated, which is very important for downstream analysis accuracy control. Additionally, the complex boundary of the variation region that needs to be remeshed is set up by merging the boundaries of modified region and the destruction zone without using complex intersection operations, which ensure the approach鈥檚 robustness. Experimental results on practical engineering parts are also shown to demonstrate the method鈥檚 performance.