Abstract
Many researchers investigated vibrations of straight pipes conveying fluid from the viewpoint of nonlinear dynamics. However, there were almost no theoretical studies of nonlinear vibrations of curved pipes and the concrete experiments which used the simple models. The main purpose of this paper is to investigate theoretically and experimentally in-plane vibration of a curved pipe, which is excited by the pulsating component of an internal flow. The experiment is conducted with the silicon rubber pipe conveying water. The spatial displacements of the flexible pipe are measured by the image-processing system that can perform measurements of the marker in three-dimensional space, based on images from two CCD cameras.
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