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实验力学  2009 

Experimental Research of Membrane Wrinkle Based on Photogrammetry

Keywords: membrane,wrinkle,photogrammetry,experimental study

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Non-contact measuring method-photogrammetry was used in this paper for experimental research of membrane wrinkle. Analysis model of sheared membrane wrinkle was established, experimental research towards this model was carried out by this method. Photogrammetry is dealing with information about the same target from cameras with different angle of view, therefore three-dimensional coordinates of corresponding target are obtained, finally the non-contact measuring of tiny deformation will be achieved. Deformation pattern of sheared membrane wrinkle was gained by photogrammetry. Results show that the number of sheared membrane wrinkles is not raise along with shear distance increase, but the extent of out-of-plan wrinkle is raise along with the distance. It has pertinence between experiment result and numerical analysis. Photogrammetry is propitious to non-contact measuring of tiny deformation for membrane structures.


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