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To solve the problems of bolt tightness degree detection in large structures, this paper studies the bolt tightness degree detection method in aluminum plate structure, by using piezoelectric sensor array to stimulate Lamb wave and HHT method to pick-up damage diagnostic parameter. The theory of HHT method is introduced, as well as the constitutions of the experimental system. Deal the echo signal...
The characteristic of wave propagation in finite elastic solids is a major issue for surface acoustic wave (SAW) devices, which are designed based on accurate analysis. As a result, it is essential in engineering applications to analyze the SAW propagation in finite piezoelectric solids with the objective of revealing the influence of structural changes. As the finite element analysis of solids is...
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