摘要
利用小波变换对受地震作用下结构的动力反应进行了分析和计算 ,并利用能量分配关系清楚地分析了各频段范围地震输入分量对结构反应的作用程度 .通过算例分析知道 ,小波变换可以对提取的任意频率范围的输入进行动力分析 。
The response and energy distribution of multi degree of freedom structures subjected to earthquake ground motion using a wavelet packet, and the response and energy ratio of each story in every frequency range are computed and analyzed. The numerical results show that structure seismic response is extremely affected by the low frequency range excitation. By using wavelet transform, the arbitrary decompose of seismic excitations can be exploited into structural dynamic analysis. It is valuable to apply the wavelet theory to structural dynamics.
出处
《华中理工大学学报》
CSCD
北大核心
2000年第11期75-78,共4页
Journal of Huazhong University of Science and Technology
基金
国家自然科学基金资助项目 !( 5990 80 0 3)
湖北省自然科学基金资助项目
关键词
结构
动力响应
小波分析
地震作用
能量分配
structural dynamic response
wavelet analysis
seismic excitation
