Prediction of strain responses from the measurements of displacement responses

Gun-Myung Lee

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Prediction of strain responses from the measurements of displacement responses

机译：根据位移响应的预测来预测应变

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A method to predict the strain responses from the measurements of displacement responses is considered. The method uses a transformation matrix which is composed of a displacement modal matrix and a strain modal matrix. The method can predict strains at points where displacements are not measured as well as at displacement measuring points. One of the drawbacks of the strain prediction method is that the displacement responses must be measured at many points on a structure simultaneously. This difficulty can be overcome by measuring the FRFs between displacements at a reference point and other point in sequence with a two channel measuring equipment. This procedure is based on the assumption that the characteristics of excitation applied to the structure do not vary with time.

机译：考虑了一种通过位移响应的测量来预测应变响应的方法。该方法使用由位移模态矩阵和应变模态矩阵组成的变换矩阵。该方法可以预测未测量位移的点以及位移测量点的应变。应变预测方法的缺点之一是必须同时在结构上的许多点处测量位移响应。通过使用两通道测量设备依次测量参考点和其他点之间的位移之间的FRF，可以克服这一困难。此过程基于以下假设：施加到结构的激励特性不会随时间变化。

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《Mechanical systems and signal processing》 |2007年第2期|p.1143-1152|共10页
作者
Gun-Myung Lee;
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正文语种 eng
中图分类机械制造工艺;
关键词
Strain response prediction; Displacement; Transformation matrix;

机译：应变响应预测位移变形矩阵;

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Prediction of strain responses from the measurements of displacement responses

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