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| Numerical investigation on fluid-structure interaction of membrane structure |
| Received:September 25, 2008 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20103007 |
| KeyWord:membrane structure fluid-structure interaction CFD FEM |
| Author | Institution |
| 朱伟亮 |
北京交通大学 土木工程学院,北京 |
| 杨庆山 |
北京交通大学 土木工程学院,北京 |
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| Abstract: |
| An interaction between enclosed saddle-shaped membrane and wind is numerically simulated using iterative method to study structural vibration and the interaction’s effects on membrane’s wind response. It is shown from numerical results that, structural average displacement could be affected by boundary conditions, wind loads distribution and structural vibration characteristics. Dynamic displacement could be obviously affected by vortex pattern and its shading behavior. Periodic vortex shading appeared on the structure under wind exiting. When the membrane was weakly prestressed, rolling membrane waves could be induced by these vortexes. Vibration characteristics of different position on the membrane vary significantly. Usually, strong and fierce vibration could be observed where airflow separates and wind vortexes shade dramatically, also in the region rolling waves excite whipping effect. |
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