Experimental Investigation of Dynamic Response of a Flexible Cylinder in a Transverse Flow

Abstract

Dynamic response of a vertical flexible cylinder vibrating at low mode numbers with combined x – y motion are investigated in this paper. The uniform flow was simulated by towing the flexible cylinder along the tank in still water, therefore the turbulence intensity of the free flow is negligible in order to obtain more reliable results. The dominant frequencies, maximum attainable amplitude, modal analysis and x – y trajectory in cross-flow and in-line directions have been reported and compared with literatures, some good agreements and justifiable discrepancies are obtained. These results could benefit the future experimental and numerical work in this area.