Parametric finite element modeling and design platform for SPS

Due to the large dimension with multiple elements and nodes, the efficiency of finite element modeling (FEM) using traditional method is very low in dynamics and control simulation of Solar Power Satellite (SPS). The simplified model only can be assumed as rigid or rigid-flexible system, which will lead to modeling errors by this approximate simplified way. Firstly, a parametric FEM method and design platform for SPS were proposed to reduce the FEM modeling period and increase the efficiency of design, analysis and optimization. Based on planar SPS concept, the basic parameters and FEM were introduced. Secondly, the numbering rules for the nodes and elements were defined, and the process of parametric set was also presented. Based on mixed programming technology of APDL, UIDL and TCL/TK, the FEM module and design platform were both constituted. The FEM modeling can be easily realized by menus and human computer interaction interface. The FEM process and the dynamic parameters were both given through a detailed example. The validity and applicability of the proposed method can be proved.