| 板壳结构的振型测量 |
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| 引用本文： | 周星德,汪凤泉.板壳结构的振型测量[J].应用科学学报,2001,19(2):117-120. |
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| 作者姓名： | 周星德 汪凤泉 |
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| 作者单位： | 东南大学工程力学系, 江苏南京 210096 |
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| 摘 要： | 应用CCD图象传感器的线性积分成象机理,将时间平均成象方法与数字图象处理技术相结合提出一种新的动态光测方法.该法只需被测对象静态参考图象及共振态的时间平均成象即可重建板壳结构的振型信息,并具有设备简单、操作方便的优点.
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| 关 键 词： | 光学动测 振型 板壳结构 时间平均成象 |
| 文章编号： | 0255-8297(2001)02-0117-04 |
| 收稿时间： | 2000-01-15 |
| 修稿时间： | 2000-04-09 |
Measurement of Mode Shapes
of Vibration for Plates and Shells |
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| ZHOU Xing-de,WANG Feng-quan.Measurement of Mode Shapes
of Vibration for Plates and Shells[J].Journal of Applied Sciences,2001,19(2):117-120. |
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| Authors: | ZHOU Xing-de WANG Feng-quan |
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| Institution: | Department of Engineering Mechanics, Southeast University, Nanjing 210096, China |
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| Abstract: | In this paper, A new method of optically dynamic measurement is presented. The method applies the linear integral imaging mechanism of the CCD image sensor and combines time average image method with digital image processing techniques. By using the method,the information of mode shapes of vibration for plates and shells can be reconstructed from their sta tic reference images and its time average images under resonance state. The method is easy and needs only simple equipment. |
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| Keywords: | mode shapes of vibration optically dynamic measurement The structure of plates and shells time average picture |
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