Vortex-induced vibration control by micro actuator |
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| Authors: | Bao-Qing Li Yang Liu Jia-Ru Chu |
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| Affiliation: | 1.Department of Precision Machinery and Precision Instrumentation,University of Science and Technology of China Hefei,Anhui,China;2.Department of Mechanical Engineering,The Hong Kong Polytechnic University,Kowloon,Hong Kong |
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| Abstract: | The control of vortex-induced vibration of two side-by-side circular cylinders in a cross flow is carried out experimentally. One cylinder is elastically supported and the other is fix-supported at both ends. The two cylinders vibrate under the action of the unsteady flow-induced forces. A micro actuator is embedded on the surface of each cylinder to perturb the boundary layer. The spacing ratio is set at 1.2. The measurement shows that the structural vibration can be suppressed significantly when the reduced excitation frequency is around 2.655. |
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