金属塑性成形有限元六面体网格自动生成方法及优化技术

工程数值模拟技术中三维有限元网格划分方法是目前研究的热点问题之一 ,特别是三维六面体网格自动生成技术对于工程计算精度影响重大 .着重介绍了在金属塑性成形仿真技术中现有的六面体网格自动生成主要方法和三维网格优化技术 ,并对采用六面体网格的优点和未来发展的趋势作了简要的说明 .总结说明 ,三维复杂域六面体网格自动生成技术是实现全自动有限元网格划分的必由之路

OPTIMIZATION AND GENERATION OF FINITE ELEMENT HEXAHEDRAL MESH IN METAL FORMING PROCESS

Generation of finite element mesh in three dimensions,especial automatic generation of hexahedral mesh with high quality,affects the accuracy of engineering simulation greatly.By classifying the wide variety of hexahedral mesh generations and optimizations for metal forming process, an overall picture of all these methodss is presented.Meanwhile, the advantages and development of hex mesh are also shown.It is concluded that the full automatic generation of all hex mesh in complex domains is the key to preprocessor of Finite Element Method (FEM).