蛍光塗料を用いた多関節平板の振動変位計測

概要

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A multi-articulated flat plate oscillates itself in a mean flow, and it has steady oscillating mode. Laser light displacement sensor was necessary to acquire the displacements of an articulated flat plate because the articulated plate had large amplitude in its fluttering motion. The image processing by using a digital video camera was therefore used to clarify the flutting motion of the articulated flat plate. In the experiment, motion capture technology was applied. Furthermore the fluorescent paint was used for the marker to capture the motion of the plates. From the results of image processing, it was found that the oscillating frequency is extremely periodic, and the amplitude is constant. Furthermore the oscillating frequency is proportional to the mean-flow velocity.