Design the cross-section shape of the stay-cables´ casing and optimization basing on damping

Author

Du, Chongjie ; Li, Shihua ; Hou, Jianxia

Author_Institution

Mech. & Electron. Control Eng. Dept., Yanshan Univ., Qinhuangdao, China

fYear

2011

fDate

17-20 Aug. 2011

Firstpage

67

Lastpage

70

Abstract

To extend cable-stayed utility longevity and reduce the frequency of vortex-induced vibration. Firstly, this paper designs a new-style cross-section shape of the stay-cables´ casing with the help of aerodynamics. Secondly, it establishes its expression making use of CFD, afterward, it compares the new model with existing and gets the new modle can avoid coming into being significantly vibration. It assures the security of cable stayed Bridge. Lastly, it optimizes cross-section shape basing on Genetic Algorithms and obtains the best model.

Keywords

aerodynamics; bridges (structures); cables (mechanical); computational fluid dynamics; design engineering; genetic algorithms; structural engineering; vibrations; vortices; CFD; aerodynamics; cable-stayed bridges; cable-stayed casing; damping; design; genetic algorithms; optimization; vortex-induced vibration; Damping; Genetic algorithms; Optimization; Shape; Software; Solid modeling; Vibrations; CFD; cable-stayed; genetic algorithms; vortex-induced vibration;

fLanguage

English

Publisher

ieee

Conference_Titel

Fluid Power and Mechatronics (FPM), 2011 International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-8451-5

Type

conf

DOI

10.1109/FPM.2011.6045731

Filename

6045731