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电网技术  2007 

大跨越输电塔线体系减震控制分析研究

, PP. 45-51

Keywords: 输电线路,大跨越塔线体系,地震作用与响应,粘滞阻尼器,调谐质量阻尼器,减震控制

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Abstract:

利用有限元分析软件ANSYS,以跨越珠江的输电线路工程为研究背景,在输电塔上布置粘滞消能阻尼器和调谐质量阻尼器(tunedmassdamper,TMD),对比分析了在三向El-Centro地震波作用下有、无减震控制措施的输电塔位移和加速度地震响应。通过有关参数分析计算,分别得到了粘滞阻尼消能减震和调谐质量减震控制的最优粘滞阻尼系数和最优TMD质量,分析研究表明上述2种减震控制措施皆能明显衰减输电塔线体系的地震响应,具有比较理想的减震效果。

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