Azer Kasımzade
Sertaç Tuhta
Furkan Günday
Abstract
In order to calibrate the finite element model of existing structures, the structural responses from environmental vibrations are examined by system identification methods, and mainly the modal (mode shapes, frequencies, damping rations) parameters of the structure are determined.
However, measurement noise and perturbation must not exceed clear limits in order to determine the physical parameters. Therefore, structure response measurements must be made with high precision.
In the presented study, the physical (mass, stiffness, damping matrices) parameters of the structure were determined by examining the response of the structure from ambient vibrations with system identification methods, acceptable measurement noise limit issues were mentioned, and the research results were shared in this direction.
Keywords
Modal parameters,
System identification, Finite element model,
State space model
Ambient vibration.
