| Title |
A Study on the Shape-finding of the Membrane Structures using Artificial Viscous Damping Element |
| Authors |
Han Sang-Eul ; Lee Kyong-Soo ; Kim Jung-Hwa |
| Keywords |
Membrane Structures ; Shape Finding ; Kinetic Damping ; Artificial Viscous Damping Element |
| Abstract |
In shape-finding process of membrane structure by dynamic relaxation method, three-node triangular membrane elements, the finite elements, are generally used. But serious changes of curvature in many membrane structures can make the mesh distortion. As a result, the final form of the membrane is not appropriate for the patterning and the stress analysis. To solve these problems, the viscous damping element is introduced to control the mesh distortion. It is placed at three sides of a triangular membrane element and the nodal force, residual force, can be controled by the damping force. Also, it does not prevent the convergence of residual force. The damping element is applied to various models to evaluate the improvement of mesh distortion and it is verified that the introduction of viscous damping element can control the mesh distortion, efficiently. |