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http://dx.doi.org/10.12989/was.2019.28.3.155

Transiting test method for galloping of iced conductor using wind generated by a moving vehicle  

Guo, Pan (School of Civil Engineering, Zhengzhou University)
Wang, Dongwei (School of Civil Engineering, Zhengzhou University)
Li, Shengli (School of Civil Engineering, Zhengzhou University)
Liu, Lulu (School of Civil Engineering, Zhengzhou University)
Wang, Xidong (School of Civil Engineering, Zhengzhou University)
Publication Information
Wind and Structures / v.28, no.3, 2019 , pp. 155-170 More about this Journal
Abstract
This paper presents a novel test method for the galloping of iced conductor using wind generated by a moving vehicle which can produce relative wind field. The theoretical formula of transiting test is developed based on theoretical derivation and field test. The test devices of transiting test method for aerodynamic coefficient and galloping of an iced conductor are designed and assembled, respectively. The test method is then used to measure the aerodynamic coefficient and galloping of iced conductor which has been performed in the relevant literatures. Experimental results reveal that the theoretical formula of transiting test method for aerodynamic coefficient of iced conductor is accurate. Moreover, the driving wind speed measured by Pitot tube pressure sensors, as well as the lift and drag forces measured by dynamometer in the transiting test are stable and accurate. Vehicle vibration slightly influences the aerodynamic coefficients of the transiting test during driving in ideal conditions. Results of transiting test show that the tendencies of the aerodynamic coefficient curve are generally consistent with those of the wind tunnel tests in related studies. Meanwhile, the galloping is fairly consistent with that obtained through the wind tunnel test in the related literature. These studies validate the feasibility and effectiveness of the transiting test method. The present study on the transiting test method provides a novel testing method for research on the wind-resistance of iced conductor.
Keywords
transiting test method; moving vehicle; iced conductor; aerodynamic characteristic; wake galloping; wind tunnel test;
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Times Cited By KSCI : 4  (Citation Analysis)
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