Research purposes:Currently,most finite element analysis applications are relatively weak at modeling,resulting in finite element analyses of complex structural systems being trivial and troublesome.On the other hand,though computer-aided design(CAD)applications are powerful at modeling,models built in CAD applications are usually not applicable for finite element analysis.To this end,this paper proposes a CAD system embed finite element modeling method.To demonstrate its validity and practicality,a Rhinoceros plugin named DirectMesh is further developed and applied to the finite element analysis of Wuhan Station.Research conclusions:(1)Using the interactive environment and various modeling tools provided by CAD system can significantly increase the efficiency of finite element modeling.(2)The single mesh generation unit proposed in this paper can generate the mesh of a single object.(3)The comprehensive mesh generation unit proposed in this paper can generate the comprehensive mesh system of multiple objects.(4)The finite element model generator proposed in this paper can generate the valid finite element model of a complex structural system.(5)The method proposed in this paper can dramatically increase the usability and efficiency of finite element modeling,which contributes the intelligent level of simulation works in mechanical engineering,civil engineering and geo-engineering.
关键词
计算机辅助设计/建模/有限元/网格/复杂结构体系
Key words
computer-aided design/modeling/finite element/mesh/complex structural system
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