首页 | 本学科首页   官方微博 | 高级检索  
     

应力波小波域谱分析的岩土介质损伤诊断
引用本文:曹茂森,任青文. 应力波小波域谱分析的岩土介质损伤诊断[J]. 水利水运工程学报, 2004, 0(3): 12-18
作者姓名:曹茂森  任青文
作者单位:河海大学,土木工程学院,江苏,南京,210098;山东农业大学,水利土木工程学院,山东,泰安,271028;河海大学,土木工程学院,江苏,南京,210098
基金项目:水利部科技创新资助项目(SCX2000-56)
摘    要:将小波分析理论与岩土介质损伤诊断相结合,提出了解析小波域能量密度谱、实小波域模谱和实小波域模极大谱三谱相辅的应力波小波域谱分析岩土介质损伤诊断的思路。在对Cmorlet和DoG小波及其变换性质分析后,将两小波联合,进而发展了新颖而有效的岩土介质损伤诊断技术,应用于地下水泥土连续墙的损伤诊断结果表明,该方法有效可行。

关 键 词:小波分析  应力波  解析小波域能量密度谱  实小波域模谱  实小波域模极大谱  时频表示  损伤诊断  岩土
文章编号:1009-640X(2004)03-0012-07
修稿时间:2003-11-20

Damage diagnoses of geotechnical media by analyzing wavelet-field spectra of stress wave
CAO Mao-sen. Damage diagnoses of geotechnical media by analyzing wavelet-field spectra of stress wave[J]. Hydro-Science and Engineering, 2004, 0(3): 12-18
Authors:CAO Mao-sen
Affiliation:CAO Mao-sen~
Abstract:A strategy of making use of the analyses of stress wave spectra including power density spectrum of analytical wavelet field, modulus spectrum of real wavelet field and modulus maximum spectrum of real wavelet field to diagnose damages of geotechnical media is proposed by applying wavelet theory into damage diagnoses of geotechnical media. After analyses of the properties of Cmorlet wavelet and DoG wavelet and their transformation characteristics, a novel and effective damage diagnose routine to implement the proposed strategy is developed by combining the advantages of above two wavelets. Damage diagnose results of a continuous subsurface cement-soil wall show that this method is effective and feasible.
Keywords:wavelet analysis  stress wave  power density spectrum of analytical wavelet  modulus spectrum of real wavelet field  modulus maximum spectrum of real wavelet field  time-frequency representation  damage diagnose  geotechnical
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《水利水运工程学报》浏览原始摘要信息
点击此处可从《水利水运工程学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号