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	Numerical investigation of wake galloping of suspension bridge cables
	Huang Weifeng ; Li Yong ; Liu Qiusheng ; Wang Bo
	2010-10-12 ; 2010-10-12
关键词	Practical Theoretical or Mathematical/ aerodynamics bridges (structures) cables (mechanical) computational fluid dynamics damping flow instability flow simulation numerical analysis turbulence vibration control wakes/ wake galloping suspension bridge cables numerical simulation commercial software FLUENT SST k-w turbulence model time-averaged aerodynamic force stability analysis dampers/ A4785 Applied fluid mechanics A4725R Wakes A4710 General fluid dynamics theory, simulation and other computational methods A4740 Compressible flows shock and detonation phenomena A4720 Hydrodynamic stability and instability C3330 Control applications in building and civil engineering C3120F Mechanical variables control E2110C Bridges E3030 Construction industry E2130 Fluid mechanics and aerodynamics (mechanical engineering) E2180D Vibrations and shock waves (mechanical engineering) E0210L Numerical analysis E1550 Control technology and theory
中文摘要	Wake galloping of the longest suspension cable on a bridge was numerically investigated using the commercial software FLUENT to simulate the plane flows around sections of the cables using the SST k-w turbulence model to obtain the instantaneous and time-averaged aerodynamic forces and their derivatives. Stability analysis of the downstream cable in the wake flow of the upstream cable shows that the downstream cable is stable when the attack angle is very small or very large, but is unstable at moderate attack angles, which agrees with traditional theories. The results also indicate that dampers are necessary to prevent wake galloping of the bridge cables.
语种	中文
出版者	Tsinghua University Press ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/80255]
专题	清华大学
推荐引用方式 GB/T 7714	Huang Weifeng,Li Yong,Liu Qiusheng,et al. Numerical investigation of wake galloping of suspension bridge cables[J],2010, 2010.
APA	Huang Weifeng,Li Yong,Liu Qiusheng,&Wang Bo.(2010).Numerical investigation of wake galloping of suspension bridge cables..
MLA	Huang Weifeng,et al."Numerical investigation of wake galloping of suspension bridge cables".(2010).

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