Wind tunnel tests of aeroelastic models of overhead transmission lines under different snow and ice covers

Budownictwo i Architektura

Andrzej Flaga¹  ŁukaszFlaga²  Piotr Krajewski²  Aleksander Pistol² 

[1] Faculty of Civil Engineering of the Cracow University of Technology Wind Engineering Laboratory of the Cracow University of Technology;Faculty of Civil Engineering of the Cracow University of Technology. Wind Engineering Laboratory of the Cracow University of Technology;

关键词: wind engineering,;    model tests;    aerodynamic model;    transmission lines;    icing;    snow cover;   

DOI  :  10.24358/Bud-Arch_18_174_13

来源: DOAJ

【 摘 要 】

In the first part of this paper, similarity criteria were elaborated for investiga-tions of aeroelastic sectional models of high voltage line wires. These criteria consider wire vibrations caused by aeroelastic phenomena: vortex excitation, wake galloping and interfer-ence between the wires causing vibration in aerodynamic trace of other wires. Second part of the paper describes the tests conducted in Wind Engineering Laboratory of Cracow Univer-sity of Technology. The subject of this set of tests was identifi cation of aeroelastic vibrations caused by aeroelastic interference of wires, mainly determination of critical velocity of wires galloping and wake galloping for selected cases of snow and ice covers on the wires.

【 授权许可】

Unknown