山东农业大学学报（自然科学版）2017，Vol.48Issue(4)：582-586,5.DOI:10.3969/j.issn.1000-2324.2017.04.021
桥梁结构模态参数自动化识别算法及其应用
Automatic Identification Algorithm for Modal Parameters of Bridge Structures and Its Application
摘要
Abstract
The existing ensemble empirical mode decomposition ( EEMD ) cannot realize the adaptive decomposition of structural response signal and automatic identification of modal parameters, this paper first through the improved algorithm to suppress the endpoint effect, clustering analysis is applied in the process of signal decomposition in order to avoid modal aliasing phenomenon, so as to construct the effective index of IMF, in order to realize the automatic selection and signal reconstruction effective component IMF. At the same time, The system order is determined automatically, and then the automatic recognition of the modal parameters is realized by combining the hierarchical clustering algorithm with the stochastic subspace algorithm. Finally, the actual bridge test signals are verified. The result shows that the improved algorithm can realize the automatic identification of modal parameters of bridge structures.关键词
桥梁结构/模态参数/自动化识别/算法/应用Key words
Bridge structure/EEMD/automatic identification/algorithm/application分类
交通工程引用本文复制引用
陈永高..桥梁结构模态参数自动化识别算法及其应用[J].山东农业大学学报（自然科学版）,2017,48(4):582-586,5.基金项目
浙江省教育厅科研项目(Y201432555) （Y201432555）
浙江省住建厅科研项目(2014Z126) （2014Z126）
绍兴市科技计划项目(2014B70003) （2014B70003）
