Using High-speed Digital Image Correlation to Determine the Damping Ratio

Saved in:
Bibliographic Details
Title: Using High-speed Digital Image Correlation to Determine the Damping Ratio
Authors: Huňady, Róbert robert.hunady@tuke.sk, Hagara, Martin1, Schrštter, Martin1
Source: Procedia Engineering. Dec2012, Vol. 48, p242-249. 8p.
Subjects: Digital image correlation, Damping (Mechanics), Algorithms, Fourier transforms, Bandwidths, Numerical analysis
Abstract: Abstract: The article deals with the possibility of using digital image correlation method in experimental determining of damping ratio. The essence of the article is a proposal of algorithm for the processing of a time responses measured by correlation system Q-450 Dantec Dynamics. The algorithm uses a Fast Fourier Transformation and bandwidth method to calculate a damping ratio. The output is a graphical representation of the value of damping ratio for given natural frequency of the test object. The article presents the method of verification by testing algorithm on numerical models and its practical application in determining the value of damping ratio of a specimen material. [Copyright &y& Elsevier]
Copyright of Procedia Engineering is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
Description
Abstract:Abstract: The article deals with the possibility of using digital image correlation method in experimental determining of damping ratio. The essence of the article is a proposal of algorithm for the processing of a time responses measured by correlation system Q-450 Dantec Dynamics. The algorithm uses a Fast Fourier Transformation and bandwidth method to calculate a damping ratio. The output is a graphical representation of the value of damping ratio for given natural frequency of the test object. The article presents the method of verification by testing algorithm on numerical models and its practical application in determining the value of damping ratio of a specimen material. [Copyright &y& Elsevier]
ISSN:18777058
DOI:10.1016/j.proeng.2012.09.510