MODAL PARAMETER IDENTIFICATION OF CIVIL ENGINEERING STRUCTURES BASED ON HILBERT-HUANG TRANSFORM
Modal parameter identification of the structure is one of the most attractive research topics in the structural health monitoring area. Hilbert-Huang transform (HHT) has been proved as a powerful tool to process non-stationary and nonlinear signals adaptively. In this paper, two approaches were proposed to identify the modal parameters. The first one is based on the HHT and the random decrement technique (RDT). The second one is based on the empirical mode decomposition (EMD), RDT and the ITD methods. Then, the original signals measured from the field ambient vibration test of an arch bridge and the shaking table test of a RC frame model were processed and modal parameters were identified respectively. Results indicate that the proposed approaches are feasible.
Jianping Han Dawen Li Hui Li
Institute of Earthquake Protection and Disaster Mitigation, Lanzhou University of Technology. 287 La Institute of Earthquake Protection and Disaster Mitigation, Lanzhou University of Technology. 287 La
国际会议
第九届工程结构完整性国际会议(The Ninth International Conference on Engineering Structural Integrity Assessment)
北京
英文
2007-10-15（万方平台首次上网日期，不代表论文的发表时间）