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输电塔-线体系振动控制研究进展

     

摘要

目的 综述振动控制技术在输电塔-线体系减振方面的研究进展, 并对未来研究方向提供建议.方法 搜集整理了近来输电塔-线体系振动控制方面的研究成果, 按照被动控制、主动控制和半主动控制3个方面, 详细介绍了各类阻尼器的研究方法及减振效果, 并针对现有研究的难点及不足提出了建议.结果 被动、主动及半主动控制技术均可有效降低输电塔-线体系的动力响应, 目前研究主要采用数值分析的方法验证各类阻尼器的减振效果, 参数优化研究较少, 试验验证及工程应用较少.结论 被动控制技术中的吸振和消能减振技术无需能量输入、安装维护方便, 更适用于输电塔-线体系.%This paper aims to review literatures on the vibration control of transmission tower-line system and provide suggestions for future study. Recent studies within this field are collected and collated in this study. The vibration mitigation techniques are categorized as passive control, active control and semi-active control. The research methods, vibration control performance of each damper are discussed in detail and suggestions are provided for future study. Recent studies have proven that all these vibration control techniques are very effective in reducing the dynamic response. However, most researches focus on verifying the effectiveness of each damper by numerical analysis. Parametric study, optimal study, experimental study and applications are hardly reported. The passive vibration control technique is more suitable for oscillation mitigation of the transmission tower-line system because it has no demand for energy input or maintenance.

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