膜结构风致振动响应的数值分析

Numerical analysis of wind induced vibration on membrane structures

膜结构属于张拉力结构,质轻而柔且不具有抗弯刚度,外荷载作用下结构的变形比较显著,这些特点决定了膜结构对风荷载十分敏感。利用ANSYS仿真软件对膜结构的流固耦合现象进行分析,研究了结构流固耦合效应的分压分布规律,同时给出具有柔性边界的流固耦合效应。

Membrane structure belongs to tension structure, which is light and soft, and does not have flexural rigidity. The deformation of the structure under external loads is significant. These characteristics determine that the membrane structure is very sensitive to wind loads. The numerical simulation are used to analyze the fluid-structure coupling phenomenon of membrane structure, and the partial pressure distribution law of the fluid-structure coupling effect is studied. At the same time, the fluid-structure coupling effect with flexible boundary is given.