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耗能减震结构的复模态分析

发表时间:2016-01-31  浏览量:1844  下载量:704
全部作者: 王航航,谢丽宇,薛松涛
作者单位: 同济大学结构工程与防灾研究所
摘 要: 对一栋安装有油阻尼器的耗能减震结构进行数值模拟分析,求得结构在不同阻尼分布状态下的复模态。研究分析发现,实际结构中阻尼器等耗能减震装置的存在使得结构出现复模态,并且阻尼分布突变之处相位差异更为明显,反映了复模态与阻尼分布密切相关。分析结果可为耗能减震结构的动力计算分析提供借鉴。
关 键 词: 工程结构;复模态;模态分析;耗能减震结构
Title: Complex modal analysis of energy-dissipation devices
Author: WANG Hanghang, XIE Liyu, XUE Songtao
Organization: Research Institute of Structural Engineering and Disaster Reduction, Tongji University
Abstract: An energy-dissipated building equipped with oil dampers is numerically simulated. The complex modes of the structure are obtained with different damping distributions. Based on simulation and analysis, it is found that the complex modes are present due to the installation of energy-dissipated devices such as oil dampers. The phase difference is relatively larger in the location where the damping distribution changes. It is clearly concluded that the complex mode is closely related to the damping distribution. The findings provide a reference for the dynamic analysis of energy-dissipated structures.
Key words: engineering structure; complex mode; modal analysis; energy-dissipated structure
发表期数: 2016年1月第2期
引用格式: 王航航,谢丽宇,薛松涛. 耗能减震结构的复模态分析[J]. 中国科技论文在线精品论文,2016,9(2):141-146.
 
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