American Journal of Mechanical Engineering
ISSN (Print): 2328-4102 ISSN (Online): 2328-4110 Website: http://www.sciepub.com/journal/ajme Editor-in-chief: Kambiz Ebrahimi, Dr. SRINIVASA VENKATESHAPPA CHIKKOL
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American Journal of Mechanical Engineering. 2016, 4(7), 376-379
DOI: 10.12691/ajme-4-7-26
Open AccessSpecial Issue

Result Correlation of Experimental and Numerical Modal Analysis of a Steel Beam

Peter Pavelka1, , Róbert Huňady1 and Martin Hagara1

1Department of Applied Mechanics and Mechanical Engineering, Faculty of Mechanical Engineering, Letná 9, 042 00 Košice, Slovakia

Pub. Date: December 17, 2016

Cite this paper:
Peter Pavelka, Róbert Huňady and Martin Hagara. Result Correlation of Experimental and Numerical Modal Analysis of a Steel Beam. American Journal of Mechanical Engineering. 2016; 4(7):376-379. doi: 10.12691/ajme-4-7-26

Abstract

The paper deals with an experimental and a numerical investigation of dynamic properties of the structure. Object of interest is a steel rod with circle section. The modal parameters, such as mode shapes and natural frequencies, are obtained by two different ways: experimentally by using experimental modal analysis and numerically by finite element analysis which were computed in NX Nastran solver. The results from both methods are compared in NX through the correlation function. A relation between measured mode shapes and computed mode shapes is expressed by Modal Assurance Criterion. This process of comparing is appropriate for verification of experimental approaches.

Keywords:
experimental modal analysis numerical modal analysis mode shape natural frequency Cross MAC

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References:

[1]  Trebuňa, F., Šimčák, F., Huňady, R. Vibration and modal analysis of mechanical systems, (In Slovak), Typopress, Košice, 2012.
 
[2]  Ewins D. J. Modal testing – Theory, practice and application. 2. edition, Wiley, (2000).
 
[3]  Bilošová. A. Experimental modal analysis, (In Czech), VŠB TU Ostrava, 2011.
 
[4]  Siemens Documentation of softvare NX 10.0.
 
[5]  Pavelka, P., Huňady, R., Hagara, M., Trebuňa, F. “Reciprocity in Experimental Modal Analysis”, American Journal of Mechanical Engineering Vol. 3, pp 252-256, No. 6, 2015.