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（1國家電網(wǎng)河南省電力公司電力科學(xué)研究院， 鄭州 450052； 2 重慶大學(xué)土木工程學(xué)院， 重慶 400044）
［摘要］基于河南尖山地區(qū)的原型線路，采用剛性模型的風(fēng)洞氣動力試驗(yàn)數(shù)據(jù)，根據(jù)規(guī)范要求模擬了湍流風(fēng)場，進(jìn)行了八分裂導(dǎo)線在均勻流與湍流下的舞動分析。結(jié)果表明，對于Den Hartog機(jī)理激發(fā)的舞動，湍流對水平幅值的影響較豎向幅值大，還會擴(kuò)大輸電線路舞動的風(fēng)速區(qū)間，使得舞動的臨界風(fēng)速變低，更容易發(fā)生舞動。對于Nigol機(jī)理激發(fā)的舞動，湍流減小了豎向和扭轉(zhuǎn)角的舞動振幅。
［關(guān)鍵詞］湍流； 八分裂導(dǎo)線； 氣動力參數(shù)； 舞動模型
中圖分類號：TU317.2, TM751, O32文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2019)22-0108-05
Galloping analysis of 8-bundle transmission lines in turbulence
Li Qing1, Li Mengli 1, Yang Xiaohui 1, Huang Jue2
(1 State Grid Henan Electric Power Research Institute， Zhengzhou 450052, China; 2 School of Civil Engineering, Chongqing University， Chongqing 400044, China)
Abstract:Based on the prototype transmission line of the Jianshan mountain area of Henan province, the wind tunnel test data of rigid model were used to simulate the turbulent wind field according to the specification requirements. The galloping analysis of 8-bundle conductors under uniform flow and turbulence was carried out. The results show that for the galloping stimulated by Den Hartog mechanism, turbulence has a greater influence on the horizontal amplitude than on the vertical amplitude. It also enlarges the wind speed range of transmission line galloping, making the critical wind speed of galloping lower and more prone to galloping. For Nigol mechanism-induced galloping, turbulence reduces the vertical and torsional angular galloping amplitudes.
Keywords:turbulence; 8-bundle conductors; aerodynamic parameter; galloping model
作者簡介：李清，碩士，教授級高級工程師，Email: liqing@ha.sgcc.com.cn。
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