An Investigation of the Temperature Influence on a Shift of Natural Frequencies Using Digital Image Correlation

Martin Hagara; Martin Schrötter; Pavol Lengvarský

doi:10.4028/www.scientific.net/AMM.611.506

Paper Titles

Strain and Stress Analysis around the Notches Using ESPI Method
p.484

The Analysis of Different Stochastic Patterns during Loading in Plastic Area Using DIC Method
p.490

The Influence of Facet Size on the Accuracy of Modal Parameters Determined by Digital Image Correlation Technique
p.496

A Comparison of Modern and Classical Experimental Methods of Mechanics in Strain Investigation
p.501

An Investigation of the Temperature Influence on a Shift of Natural Frequencies Using Digital Image Correlation
p.506

Uncertainty of Dust Mass Concentration Measurement
p.511

Detection of Welds in Automated Welding
p.519

Design of Active Feedback for Rehabilitation Robot
p.529

Innovation of Scavenging System to Increase Volumetric Efficiency of Internal Combustion Engines
p.536

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 611An Investigation of the Temperature Influence on a...

An Investigation of the Temperature Influence on a Shift of Natural Frequencies Using Digital Image Correlation

Abstract:

The contribution describes an original optical measuring technique serving for the investigation of temperature influence on the shift of investigated objects natural frequencies. The mentioned method uses a modified high-speed digital image correlation system with original program Modan 3D created in Matlab, by which it is possible to non-contactly determine the natural frequencies using complex mode indicator function (CMIF) or normal mode indicator function (NMIF), the mode shapes as well as the damping ratio. Influence of the temperature on the shift of natural frequencies was analyzed at the planar steel specimen of circular shape with three holes. To the excitation a modal hammer was used. The specimen heating was realized by a hot-air gun, whereby the influence of the elevated temperature on the shift of natural frequencies was investigated by three temperatures distinguishing the room temperature 50° C, 75° C and 100° C.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Applied Mechanics and Materials (Volume 611)

Pages:

506-510

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.611.506

Citation:

Cite this paper

Online since:

August 2014

Authors:

Martin Hagara*, Martin Schrötter, Pavol Lengvarský

Keywords:

Digital Image Correlation (DIC), Modal Analysis, Modan 3D, Temperature Influence

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] P. Bialkowski, B. Krezel, An Evaluation of Temperature Influence on Natural Frequency of Selected Frictional Elements of Breaking System, The Archives of Automotive Engineering/ Archiwum Motoryzacji, 62(4), 2013, 3–15.

Google Scholar

[2] F. Trebuňa, F. Šimčák, Príručka experimentálnej mechaniky, Košice: Typopress, (2007).

Google Scholar

[3] F. Trebuňa, F. Šimčák, R. Huňady, Kmitanie a modálna analýza mechanických sústav, Košice: Typopress, (2012).

Google Scholar

[4] A Brandt, Noise and Vibration Analysis: Signal Analysis and Experimental Procedures, John Wiley & Sons, Ltd., (2011).

Google Scholar

[5] R. J. Allemang, D. L. Brown, A Complete Review of the Complex Mode Indicator Function (CMIF) with Applications. International Conference on Noise and Vibration Engineering, ISMA, (2006).

Google Scholar

[6] F. Trebuňa, M. Hagara, Experimental modal analysis performed by high-speed digital image correlation system, Measurement, 50(4), 2014, 78-85.

DOI: 10.1016/j.measurement.2013.12.038

Google Scholar