The Measurement of Standing Wave Patterns by using High-speed Digital Image Correlation

Abstract

Paper deals with the measurement of standing wave patterns of a square plate by using Digital Image Correlation method that allows perform measurements of 3D displacements and strains. The experiment described in the paper had two phases. In the first phase, the natural frequencies of the plate were determined. The corresponding mode shapes of vibration were measured in the second phase. For the purpose of capturing a deformation of vibrating surface the correlation system Q-450 with two high-speed cameras had to be used for measurement.