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Erschienen in:

2019 | OriginalPaper | Buchkapitel

2. Single High-Speed Camera Based 3D Deflection Reconstruction in Frequency Domain

verfasst von : Janko Slavič, Domen Gorjup, Miha Boltežar

Erschienen in: Rotating Machinery, Optical Methods & Scanning LDV Methods, Volume 6

Verlag: Springer International Publishing

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Abstract

High-speed camera systems are a well-established alternative to traditional vibration measurement techniques, particularly in cases when the region of interest on the observed object is near-planar. With the introduction of 3D digital image correlation some of the traditional limitations of 2D imaging systems are eliminated, but the limited field of view of stereo camera pairs remain problematic in some applications.

In this paper the possibility of extending the use of high-speed camera systems to vibration measurement of arbitrarily shaped structures by applying methods, commonly used in multi-view computer vision is explored. A single high speed camera is used to record the vibrating structure from multiple points of view. By utilizing properties of linear, time-invariant mechanical systems, multi-view triangulation is then performed in frequency domain on displacement data, extracted from these image sequences using optical flow or digital image correlation. The acquired 3D spectra are finally used in full-field deflection reconstruction.

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Chu, T.C., Ranson, W.F., Sutton, M.A.: Applications of digital-image-correlation techniques to experimental mechanics. Exp. Mech. 25(3), 232–244 (1985)CrossRef

Hartley, R., Zisserman, A.: Multiple View Geometry in Computer Vision, 2nd edn. Cambridge University Press, New York (2003)MATH

Harvent, J., Bugarin, F., Orteu, J.-J., Devy, M., Barbeau, P., Marin, G. Inspection of aeronautics parts for shape defect detection using a multi-camera system. In: Proc. SEM XI Int. Congr. Exp. Appl. Mech. Orlando, FL, USA, pp. 2–5, 2008

Orteu, J.-J., Bugarin, F., Harvent, J., Robert, L., Velay, V.: Multiple-camera instrumentation of a single point incremental forming process pilot for shape and 3D displacement measurements: methodology and results. Exp. Mech. 51(4), 625–639 (2011)CrossRef

Wang, Y., Lava, P., Coppieters, S., Houtte, P.V., Debruyne, D.: Application of a multi-camera stereo DIC set-up to assess strain fields in an Erichsen test: methodology and validation. Strain. 49(2), 190–198 (2013)CrossRef

Pan, B.: Digital image correlation for surface deformation measurement: historical developments, recent advances and future goals. Meas. Sci. Technol. 29(8), 82001 (2018)CrossRef

LeBlanc, B., Niezrecki, C., Avitabile, P., Sherwood, J., Chen, J.: Surface stitching of a wind turbine blade using digital image correlation. In: Topics in Modal Analysis II, vol. 6, pp. 277–284. Springer, New York (2012)CrossRef

Patil, K., Baqersad, J., Sheidaei, A.: A multi-view digital image correlation for extracting mode shapes of a tire. In: Shock & Vibration, Aircraft/Aerospace, Energy Harvesting, Acoustics & Optics, vol. 9, pp. 211–217. Springer, Cham (2017)CrossRef

Javh, J., Slavič, J., Boltežar, M.: The subpixel resolution of optical-flow-based modal analysis. Mech. Syst. Signal Process. 88, 89–99 (2017)CrossRef

10.

Hartley, R.I., Sturm, P.: Triangulation. Comput. Vis. Image Underst. 68(2), 146–157 (1997)CrossRef

Titel: Single High-Speed Camera Based 3D Deflection Reconstruction in Frequency Domain
verfasst von: Janko Slavič
Domen Gorjup
Miha Boltežar
Verlag: Springer International Publishing
Buch: Rotating Machinery, Optical Methods & Scanning LDV Methods, Volume 6
Print ISBN: 978-3-030-12934-7

Electronic ISBN: 978-3-030-12935-4

Copyright-Jahr: 2019
DOI: https://doi.org/10.1007/978-3-030-12935-4_2

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