Structural Parameters Identification Based on Extended Kalman Filter

摘要：

　　In this study,the calculation process of extended Kalman filter is introduced and applied to structural parameter identification.Two linear time-invariant parameters of natural frequencies and damping ratios are identified by a linear single-degree-of-freedom structural numerical simulation,and the effects of different integral methods,different time steps and different Gauss noise levels of structural parameter detection results are discussed.The numerical simulations indicate that it is necessary to select the appropriate integral method to identify the structural damping ratio,estimation precision is increased as the time step decreases and Gauss noise has a significant influence to damping ratios identification while it has litter influence on natural frequencies detect.

关键词： Extended Kalman filter single-degree-of-freedom structure parameter identification Newmark-β Method

作者: Bin Zeng Liyuan Huang Lei Zhao Qing Xu Yanchao Shao Bo Wen Chunfeng Wan

作者单位: Central Research Institute of Building and Construction Co.,Ltd,Beijing 100088,China Key Laboratory of Concrete and Prestressed Concrete Structure of Ministry of Education,Southeast Uni

会议类型: 国际会议

会议名称: 2018 3rd International Conference on Computer Science and Information Engineering (ICCSIE 2018) 2018第三届计算机科学与信息工程国际会议(ICCSIE 2018)

会议地点: 西安

会议语种:英文

页码: 249-257

在线出版日期: 2018-09-21（万方平台首次上网日期，不代表论文的发表时间）