Analysis of Reliability of Modal Parameters Estimation Using High-speed Digital Image Correlation Method

Martin Hagara^1, , Róbert Huňady¹, Pavol Lengvarský¹ and Peter Pavelka¹

¹Department of Applied Mechanics and Mechanical Engineering, Technical University of Košice, Faculty of Mechanical Engineering, Košice, Slovakia

Cite this paper:
Martin Hagara, Róbert Huňady, Pavol Lengvarský and Peter Pavelka. Analysis of Reliability of Modal Parameters Estimation Using High-speed Digital Image Correlation Method. American Journal of Mechanical Engineering. 2015; 3(6):190-194. doi: 10.12691/ajme-3-6-7

Abstract

This paper deals with description of modification and using high-speed digital image correlation method in experimental modal analysis. In its theoretical part the basic principle of digital image correlation and description of modification of correlation system Q-450 Dantec Dynamics for the purposes of SIMO (Single Input / Multiple Output) assumption of modal parameters is introduced. The practical part – analysis of reliability of program Modan3D, developed for modal parameters estimation – was realized on a simple steel specimen in laboratory conditions. The obtained outputs are present in a form of graphs and tables.

Keywords:
digital image correlation experimental modal analysis reliability Modan3D

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