Abstract
The feasibility of the determination of the patterns of vibrations of a plate by means of stereophotogrammetric methods was established. A square plate, free on all edges, was vibrated in resonance at the first three observable modes and simultaneously photographed by a pair of cameras by means of a rapid-flash tube. Chladni figures were used to establish a datum plane, and measurements on the pair of photographs were used to compute displacements on a set of grid intersections scribed on the plate.
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The investigation which this paper is based upon was performed under a grant of the National Science Foundation.
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Wasil, B.A., Merchant, D.C. & Del Vecchio, J.J. Photogrammetric measurements of dynamic displacements. Experimental Mechanics 5, 332–339 (1965). https://doi.org/10.1007/BF02327536
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DOI: https://doi.org/10.1007/BF02327536