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应用科学学报 ›› 2001, Vol. 19 ›› Issue (2): 117-120.

• 论文 • 上一篇    下一篇

板壳结构的振型测量

周星德, 汪凤泉   

  1. 东南大学工程力学系, 江苏南京 210096
  • 收稿日期:2000-01-15 修回日期:2000-04-09 出版日期:2001-06-30 发布日期:2001-06-30
  • 作者简介:周星德(1964-),男,安徽合肥人,助研,博士;汪凤泉(1940-),男,安徽宿县人,教授,博导.

Measurement of Mode Shapes of Vibration for Plates and Shells

ZHOU Xing-de, WANG Feng-quan   

  1. Department of Engineering Mechanics, Southeast University, Nanjing 210096, China
  • Received:2000-01-15 Revised:2000-04-09 Online:2001-06-30 Published:2001-06-30

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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.

关键词: 光学动测, 振型, 板壳结构, 时间平均成象

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.

Key words: The structure of plates and shells, time-average picture, mode shapes of vibration, optically dynamic measurement

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