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Mechanics in Engineering ›› 2018, Vol. 40 ›› Issue (6): 630-638.doi: 10.6052/1000-0879-18-061

• Applied Research • Previous Articles     Next Articles

GALLOPING BEHAVIORS OF SECTOR-SHAPE ICED EIGHT BUNDLE CONDUCTORS1)

CAI Mengqi*,2), XU Qian , ZHOU Linshu **, LIU Xiaohui ††,3), YAN Bo ***   

  1. *School of Architecture & Civil Engineering, Chengdu University, Chengdu 610106, China;
    School of Architecture & Environment, Sichuan University, Chengdu 610044, China;
    **Sichuan Electric Power Test & Research Inst, Chengdu 610016, China;
    **School of Civil Engineering & Architecture, Chongqing Jiaotong University, Chongqing 400074, China;
    ***School of Aeronautics & Astronautics, Chongqing University, Chongqing 400044, China
  • Received:2018-02-02 Online:2018-12-15 Published:2019-01-02

Abstract: The sector-shape iced eight UHV (ultra-high voltage) bundled conductors are in a condition more similar to the heavy ice conditions than that of the crescent-shape ice. Test models of sector-shape cross section iced eight bundled conductors are prepared. The aerodynamic coefficients of the sector-shape iced conductor models varying with the wind attack angle are obtained by the wind tunnel test. Based on the wind tunnel test results of sector-shaped iced eight bundle conductors, the numerical methods are used to study the effects of critical parameters on the galloping of eight sector-shaped iced conductors. The effects of the wind velocity, the span length and the initial wind attack angle on the galloping of sector-shaped iced eight bundled iced conductors are investigated. The result shows that the sector-shaped iced eight conductors can reflect the galloping characteristics of eight bundle conductors under heavy ice conditions.

Key words: sector-shape ice|eight bundled conductors|galloping|wind tunnel test

CLC Number: 

  • TM753