Evaluation of the digital image correlation method for the measurement of vibration mode shapes

Mohd Faizal Mat Tahir, Stephen J. Walsh, Daniel J. O'Boy

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Digital Image Correlation (DIC) is a modern non-contact, full-field optical technique that is being used for the measurement of static and dynamic displacement problems, material testing and fracture mechanics. In particular, three dimensional DIC is able to measure the out-of-plane vibration mode shapes and deformation of a vibrating structure. Thus, this technique can potentially provide an important validation tool between measured and predicted results. This paper presents some preliminary evaluation results from using the DIC measurement approach. The DIC method was implemented using two low-speed charge-couple device cameras and a phase-locked measurement technique synchronised to the excitation. A 1.2mm thick steel plate with clamped boundary conditions was chosen as the test sample. Resonant frequencies and mode shapes were compared to predictions made using a Finite Element analysis and the experimental Chladni method of visualizing vibrating mode patterns. This comparison reveals some of the advantages and limitations of the DIC method for vibration mode shape analysis.

Original languageEnglish
Title of host publicationINTER-NOISE 2015 - 44th International Congress and Exposition on Noise Control Engineering
PublisherThe Institute of Noise Control Engineering of the USA, Inc.
Publication statusPublished - 2015
Event44th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2015 - San Francisco, United States
Duration: 9 Aug 201512 Aug 2015

Other

Other44th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2015
CountryUnited States
CitySan Francisco
Period9/8/1512/8/15

Fingerprint

modal response
vibration
evaluation
vibration mode
fracture mechanics
low speed
resonant frequencies
cameras
steels
boundary conditions
predictions
excitation

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

Cite this

Mat Tahir, M. F., Walsh, S. J., & O'Boy, D. J. (2015). Evaluation of the digital image correlation method for the measurement of vibration mode shapes. In INTER-NOISE 2015 - 44th International Congress and Exposition on Noise Control Engineering The Institute of Noise Control Engineering of the USA, Inc..

Evaluation of the digital image correlation method for the measurement of vibration mode shapes. / Mat Tahir, Mohd Faizal; Walsh, Stephen J.; O'Boy, Daniel J.

INTER-NOISE 2015 - 44th International Congress and Exposition on Noise Control Engineering. The Institute of Noise Control Engineering of the USA, Inc., 2015.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Mat Tahir, MF, Walsh, SJ & O'Boy, DJ 2015, Evaluation of the digital image correlation method for the measurement of vibration mode shapes. in INTER-NOISE 2015 - 44th International Congress and Exposition on Noise Control Engineering. The Institute of Noise Control Engineering of the USA, Inc., 44th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2015, San Francisco, United States, 9/8/15.
Mat Tahir MF, Walsh SJ, O'Boy DJ. Evaluation of the digital image correlation method for the measurement of vibration mode shapes. In INTER-NOISE 2015 - 44th International Congress and Exposition on Noise Control Engineering. The Institute of Noise Control Engineering of the USA, Inc. 2015
Mat Tahir, Mohd Faizal ; Walsh, Stephen J. ; O'Boy, Daniel J. / Evaluation of the digital image correlation method for the measurement of vibration mode shapes. INTER-NOISE 2015 - 44th International Congress and Exposition on Noise Control Engineering. The Institute of Noise Control Engineering of the USA, Inc., 2015.
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