| 高速三维数字图像相关系统及其动载三维变形测量 |
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| 引用本文： | 曾祥福,刘程林,马少鹏.高速三维数字图像相关系统及其动载三维变形测量[J].北京理工大学学报,2012,32(4):364-369. |
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| 作者姓名： | 曾祥福 刘程林 马少鹏 |
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| 作者单位： | 北京理工大学宇航学院,北京,100081;北京理工大学宇航学院,北京,100081;北京理工大学宇航学院,北京,100081 |
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| 基金项目： | 国家自然科学基金资助项目(10972038);国家部委预研项目(9140A05040610BQ0116) |
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| 摘 要： | 基于双目立体视觉、高速摄影和数字图像相关方法,用两台高速相机搭建了可用于观测结构动态三维变形的高速三维数字图像相关测量系统.介绍了测量系统的原理及实验过程中需要注意的细节,用该测量系统进行了两个动载下三维变形观测的实验:摆锤冲击铝板实验和霍普金森杆冲击石墨圆柱实验,得到了受冲击铝板的动态离面位移场演化和石墨圆柱试件横向变形的三维位移场.
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| 关 键 词： | 动载荷 高速变形测量 三维数字图像相关 |
| 收稿时间： | 9/2/2011 12:00:00 AM |
Measurement of Dynamic Three-Dimensional Deformation of Structures Using High-Speed 3-D Digital Image Correlation System |
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| ZENG Xiang-fu,LIU Cheng-lin and MA Shao-peng.Measurement of Dynamic Three-Dimensional Deformation of Structures Using High-Speed 3-D Digital Image Correlation System[J].Journal of Beijing Institute of Technology(Natural Science Edition),2012,32(4):364-369. |
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| Authors: | ZENG Xiang-fu LIU Cheng-lin and MA Shao-peng |
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| Institution: | School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China;School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China;School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | Based on the principles of binocular stereo vision, high-speed photography and digital image correlation (DIC), a high-speed three-dimensional deformation measurement system was constructed to measure the dynamic 3D deformation of structures. The experimental set-up and its details of the measurement system were introduced. Two experiments, an aluminum plate impacted by a pendulum and a graphite cylinder loaded by a Hopkinson bar, were performed using the constructed system. The dynamic 3D out-of-plane deformation fields of the plate and the lateral 3D deformation of the graphite cylindrical were obtained. |
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| Keywords: | dynamic load high-speed deformation measurement three-dimensional digital image correlation |
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