Vortex-induced vibration control by micro actuator

被引:0
作者
Bao-Qing Li
Yang Liu
Jia-Ru Chu
机构
[1] University of Science and Technology of China Hefei,Department of Precision Machinery and Precision Instrumentation
[2] The Hong Kong Polytechnic University,Department of Mechanical Engineering
来源
Journal of Mechanical Science and Technology | 2007年 / 21卷
关键词
Control; Vortex-induced vibration; PZT actuator;
D O I
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中图分类号
学科分类号
摘要
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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[1]  
Baz A.(1991)Active Control of Flow-induced Vibrations of a Flexible Cylinder using Direct Velocity Feedback Journal of Sound and Vibration 146 33-45
[2]  
Ro J.(1984)Vortex Shedding from Oscillating Bluff Bodies Annual Review of Fluid Mechanics 16 195-222
[3]  
Bearman P. W.(1964)The Transition on Turbulence in the wake of a Circular Cylinder Journal of Fluid Mechanics 19 290-303
[4]  
Bloors M. S.(2003)Perturbed Interaction between Vortex Shedding and Induced Vibration Journal of Fluids and Structures 17 887-901
[5]  
Cheng L.(2003)Flow Control Around a Circular Cylinder by Internal Acoustic excitation Journal of Fluids and Structures 17 903-913
[6]  
Zhou Y.(1998)Micro-Electro-Mechanical-Systems (MEMS) and Fluid Flows Annual Review of Fluid Mechanics 30 579-612
[7]  
Zhang M. M.(1991)Influence of Internal Acoustic Excitation upon flow Passing a Circular cylinder Journal of Fluids and Structures 5 427-442
[8]  
Fujisawa N.(2004)The Effect of Two Degrees of Freedom on Vortex-induced Vibration at Low Mass and Damping Journal of Fluid and Mechanics 509 23-62
[9]  
Takeda G.(1999)MEMS Applications in Turbulence and Flow Control Progress in Areospace Science 35 101-203
[10]  
Ho C. M.(1982)A Comparative study of three Aerodynamic Devices for Suppressing Vortex-induced Oscillation Journal of Wind Engineering and Industrial Aerodynamics 10 21-29