| Summary |
In this paper, FEM of which an unknown quantity is the coordinate value on a deformed body, is applied to geometrically nonlinear membrane structure analysis. This basic method has already been proposed by us. In this discretization formulation, a cable element and a membrane element are described. The three dimensional coordinate value of the tension structure on the deformed body is obtained directly by this formulation and all the static and dynamic mechanical behavior is grasped. Concerning the static analysis, numerical result that satisfied the cutting pattern of plane membrane piece and the most suitable equilibrium configuration of the deformed body at the same time is shown as an optimization problem. The analytical modeling is a suspension membrane structure, and a pneumatic structure, and a suspension membrane structure of cable reinforcement. The membrane and the cable are no-compression properties. The numerical procedure with a variable stiffness method is explained as the compressive stress affects the no-compression property. Finally, the concept on the idea and the design support system development of the membrane structure using these procedures is explained.
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