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不同小波基下的结构位移反应动力可靠性分析
Dynamic reliability analysis for structural displacement response based on different wavelets
【摘要】 本文从二种不同小波即:修正的Meyer小彼,littlewood-Paley小波,谐波小波的基本概念出发,得出这三种小波基下的地震输入瞬时功率谱,并求出在地震作用下各自的结构位移反应瞬时功率谱,同时定量给出了在这三种小波基下的多自由度体系结构位移反应的动力可靠度时程。
【Abstract】 This paper proposes three wavelets: Modified Meyer wavelet, Littlewood - Paley wavelet and harmonic wavelet. Based on the three wavelets, instantaneous power spectral density of the earthquake input and of the structural displacement response under earthquake are deduced. At last as an example, the dynamic reliability time history of multidegree of freedom systems is given to show application of the method.
【关键词】 小波的;
瞬时功率谱;
结构位移反应;
动力可靠度时程;
【Key words】 wavelet; earthquake; instantaneous power spectral density; structure displacement response; dynamic reliability time history.;
【Key words】 wavelet; earthquake; instantaneous power spectral density; structure displacement response; dynamic reliability time history.;
【基金】 国家自然科学基金资助项目(59869002);云南省教育厅科学研究基金资助项目(0142008)
- 【文献出处】 世界地震工程 ,World Information On Earthquake Engineering , 编辑部邮箱 ,2002年02期
- 【分类号】TU311.2
- 【被引频次】9
- 【下载频次】102