管下端をばね支持された弾性送水管のうなりを伴う空間運動

抄録

Spatial behavior of a pipe conveying fluid is examined theoretically and experimentally under the condition that the pipe has an asymmetrical spring supported end. The planar motion, nonplanar motion and beating phenomena of the pipe vibration exist depending on the flow velocity and the perturbed parameter of the spring coefficient. Furthermore the experiments were conducted with the silicon rubber pipe conveying water. The spatial displacements of the pipe were measured by the image processing system, which was based on the images from two CCD cameras. The typical feature of the self-excited pipe vibration, as predicted by the theory, was confirmed qualitatively.