阻尼线耗能特性试验研究与理论分析  

Energy Dissipation Characteristics of Wire Dampers

作　　者：李黎[1,2] 陈元坤[1,2] 曹化锦[1,2] 叶志雄 

机构地区：[1]华中科技大学土木工程与力学学院,武汉430074 [2]华中科技大学控制结构湖北省重点实验室,武汉430074 [3]武汉市建筑设计研究院,武汉430014

出　　处：《振动．测试与诊断》2011年第2期175-179,264-265,共5页Journal of Vibration,Measurement & Diagnosis

基　　金：国家电网公司科技资助项目(编号:SGKJ[2007]413);国家自然科学基金资助项目(编号:50878093)

摘　　要：通过进行阻尼线的室内模拟消振试验研究了阻尼线的耗能特性,利用摄动法研究了阻尼线的静态构形,对其振动方程求解,得到了阻尼线的耗能功率理论计算值,并与相应的试验结果进行对比分析。结果表明,阻尼线谐振频率与其长度有关,阻尼线的长度影响其耗能效果;摄动法的阻尼线耗能功率理论计算值与试验结果吻合较好,故验证了该方法的可靠性与合理性。上述结论可为大跨越阻尼线的防振设计与研究提供参考。In order to investigate the energy dissipation characteristics of the wire dampers,the indoor aeolian vibration simulation tests were designed.Moreover,the static deformation of the wire damper was studied on the basis of the perturbation method;and the energy dissipation calculation methods were established by solving the vibration equation.The results show that the length of the wire damper has a great influence on its natural frequency and energy dissipation characteristics.The calculation method is confirmed to be reliable and the theoretical results agree well with the test results.

关 键 词：阻尼线 微风振动 试验研究 摄动法 

分 类 号：TM726.3[电气工程—电力系统及自动化] TB123[理学—工程力学]