AN EXPERIMENTAL STUDY ON ADDED MASS COEFFICIENT OF VORTEX-INDUCED VIBRATION OF A CIRCULAR CYLINDER

In this paper, an experiment study with aspect ratio 100 of a circular cylinder was conducted in wave-current channel. The FBG sensors were attached on the which are used to capture vibration signal, two high-precision bellows type monitor fluctuant support force, and dynamic response finally calculated by modal analysis method. effect flow velocity, mass top tension amplitude ratio, frequency added coefficient evaluated. results showed that had greater influence amplitude; demonstrated nonlinear relationship external velocity. decreases when reduced velocity increases. At particular increases or