塔式容器新型扰流减振方法研究

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振动与冲击 ›› 2015, Vol. 34 ›› Issue (9) : 71-75.

论文

塔式容器新型扰流减振方法研究

谭蔚 1,李晓琳 1，吴皓 1

作者信息 +

Research on the vibration suppression of towers by the new turbulators

Tan Wei 1 Li Xiaolin 1 Wu Hao 1

Author information +

文章历史 +

摘要

基于塔式容器发生横风向振动的原理，设计了适用于防止塔式容器横风向振动的声波扰流器和喷射扰流器。利用有限元分析软件ANSYS Workbench14.0 建立三维流固耦合数值模型对比分析了两种扰流器在不同扰流速度和扰流频率情况下对塔体周围边界层的干扰效果。结论是速度取一阶临界风速，频率取剪切层不稳定流的脉动频率时，两种扰流器的扰流防振效果最好；同样的扰流参数情况下，喷射扰流器的扰流防振效果比声波扰流器的好。此研究结论为塔器防振措施中扰流器的设计与工程应用提供参考和依据。

Abstract

Acoustic turbulator and eject turbulator are designed based on the mechanics of vibration to suppress the across-wind vibration of the towers.3D numerical models are set up to analysis the effect of the two new turbulators with varying parameters on the wind field around the tower. It is found that a turbulator with the turbulent velocity equaling to the first critical velocity and the turbulent frequency corresponding to the instability of the shear layer is the most effective; the eject turbulator with the same parameters as the acoustic turbulator is proved to be more effective. The conclusions provide reference and gist for the design and application of the turbulators.

导出引用

谭蔚 1,李晓琳 1，吴皓 1. 塔式容器新型扰流减振方法研究[J]. 振动与冲击, 2015, 34(9): 71-75

Tan Wei 1 Li Xiaolin 1 Wu Hao 1 . Research on the vibration suppression of towers by the new turbulators[J]. Journal of Vibration and Shock, 2015, 34(9): 71-75

参考文献

[1] Dennis, R. M. Pressure Vessel Design Manual [M]. Gulf Professional Publishing, 2004：244-245
[2] 高文彦.化工装置中塔器的风诱导振动[J].化工设备与管道，2001，5（38）：29～33
GaoWenyan. Wind Induced Vibration of Column in Chemical Industry. Process Equipment & Piping， 2001，5 （38）：29～33
[3] 高鸿海, 姜锦玲. 塔振动与卡曼旋涡的解决办法[J].甘肃科技， 2005，21（6）：35～37
GaoHonghai，Jiang Jinling. The methods for the induced vibration of towers and Kaman vortex.Gansu Science and Technology， 2005，21 （6）：35～37
[4] Henry, H. Bendar, P. E. Pressure Vessel Design Handbook [M]. Krieger Publishing Company, 1991：107-121
[5] 任晓蕾. 二甲苯塔振动分析[D]. 北京化工大学，2008.
Ren Xiaolei. Vibration Analysis of the Dimethylbenzene Tower[D]. Beijing University of Chemical Technology, 2008.
[6] S.Hiejima, T.Nomura etc. Numerical study on the suppression of the vortex-induced vibration of a circular cylinder by acoustic excitation [J]. Journal of Wind Engineering and Industrial Aerodynamics,1997, 67: 325-335
[7] N. Fujisawa, G. Takeda. Flow control around a circular cylinder by internal acoustic excitation [J]. Journal of Fluids and Structures, 2003,17: 903-913
[8] Anil Prasad, Charles H. K.The instability of the shear layer separating froma bluff body [J]. Journal of Fluid Mech. 1997, 333: 375~402.
[9] JB4710-2005《钢制塔式容器》[S].
JB4710-2005 steel vertical vessels supported by skirt [S].