| 李云良*,林国昌,谭惠丰,谭忆秋.基于摄影测量法的薄膜褶皱实验研究[J].实验力学,2009,24(5):486~492 |
| 基于摄影测量法的薄膜褶皱实验研究 |
| Experimental Research of Membrane Wrinkle Based on Photogrammetry |
| 投稿时间：2009-03-05 修订日期：2009-06-10 |
| DOI： |
| 中文关键词: 薄膜 褶皱 摄影测量法 实验研究 |
| 英文关键词:membrane wrinkle photogrammetry experimental study |
| 基金项目: |
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| 摘要点击次数: 502 |
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| 中文摘要: |
| 采用非接触式的测试方式--摄影测量法对薄膜褶皱进行了实验研究。建立了剪切薄膜褶皱的分析模型，并基于摄影测量法对该模型的褶皱变形模式进行了实验研究。摄影测量法是通过对不同角度上相机拍摄到的同一靶点的图像信息进行处理，可以得到相应靶点的三维坐标，从而实现对微小变形的非接触式的测量。通过摄影测量法得到了剪切薄膜褶皱的变形模式。实验研究表明，在剪切距离增大的情况下薄膜褶皱的数量保持不变，但是褶皱面外变形幅度随着剪切距离的增加而增大。试验结果与数值分析结果具有相关性，摄影测量法适合于薄膜结构微小面外变形的非接触式测量。 |
| 英文摘要: |
| 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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