| The in-depth contents |
| Publication year |
2001 |
| PDF |
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| Title |
NUMERICAL ANALYSIS ON WIND INDUCED STATIC DEFORMATION OF ONE-WAY TYPES OF SUSPENDED MEMBRANE |
| Author |
Seiji Nakato,Kichiro Kirnura,Takashi Nomura,Yozo Fujino
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| Summary |
Suspended membrane was planned to use as rainproof cover on dam construction site. As the first step of fluid-membrane coupled analysis， wind-induced static deformation of a suspended membrane is computationally studied. The equilibrium shape of the membrane was obtained by coupling two dimensional finite element analysis of the air based on Navier-Stokes equation and that of membrane using truss elements. Modified ALE method was used to compute the aerodynamic force efficiently，an d the underrelaxation method and the incremental load method were used to suppress the numerical instability. Property of flow-field and membrane shape with different sag ratio and wind speed was discussed. The computed results was compared with the previous experiment.
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