| 基于小波理论对双线性结构地震响应分析 |
| |
| 引用本文： | 黄天立,李创第.基于小波理论对双线性结构地震响应分析[J].广西工学院学报,2007,18(2):4-7,28. |
| |
| 作者姓名： | 黄天立 李创第 |
| |
| 作者单位： | 广西工学院,土木建筑工程系,广西,柳州,545006 |
| |
| 基金项目： | 广西高校百名中青年学科带头人项目 |
| |
| 摘 要： | 本文应用小波时频分析方法对双线性单自由度(SDOF)结构的动力特性进行了研究。基于结构在地震动输入下的响应,分别采用连续小波变换(CWT)和离散小波变换(DWT)识别了结构在响应过程中的频率变化情况和双线性结构的屈服和卸载时刻。结果表明,小波分析方法能准确地识别结构在非线性地震响应中的频率变化和屈服、卸载时刻。
|
| 关 键 词： | 小波理论 双线性结构 地震响应 系统识别 |
| 文章编号： | 1004-6410（2007）02-0004-04 |
| 收稿时间： | 2007-05-15 |
| 修稿时间： | 2007-05-15 |
Seismic response analysis of bi-linear structure based on the wavelet theory |
| |
| HUANG Tian-li,LI Chuang-di.Seismic response analysis of bi-linear structure based on the wavelet theory[J].Journal of Guangxi University of Technology,2007,18(2):4-7,28. |
| |
| Authors: | HUANG Tian-li LI Chuang-di |
| |
| Affiliation: | Department of Civil Engineering, Guangxi University of Technology, Liuzhou 545006 |
| |
| Abstract: | The wavelet analysis was used to investigate the dynamic characteristics of bilinear single-degree-of-freedom(SDOF) structures.The continuous wavelet transform(CWT) and the discrete wavelet transform(DWT) have been used to identify the frequency variations and the time at on-set of yielding and unloading of a bilinear structure during seismic response separately.The result shows that the wavelet theory can provide accurate information of both frequency variations and the yielding and unloading time in nonlinear seismic response. |
| |
| Keywords: | wavelet theory bilinear structures seismic response system identification |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
