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摘要
Parameter identification is very important in structural health monitoring for structural safety and management after emergency event. In practical applications, some external inputs, such as seismic excitations, wind loads, etc. and some structure responses may not be measured or may not be measurable. Herein detail analysis based on adaptive sequential nonlinear least-square estimation with unknown inputs and unknown outputs (ASNLSE-UI-UO) method is developed for effective parameter identification. Simulation studies using a 3-DOF linear system and experimental studies using a 3-DOF shear-beam model with different scenarios of unknown inputs and unknown outputs are carried out to verify the analytical results. Simulation and experimental results demonstrate that this analysis technique for effective parameter identification of ASNLSE-UI-UO method is reasonable and accurate.
- 出版日期2013-6
- 单位机械结构力学及控制国家重点实验室; 南京航空航天大学
