Finite element model updating of a plate type structure made of composite material using a network of PZT

Ambient vibrations are one of the most unpredicted, undesired, and uncontrolled destructive causes of sudden failure for many types of structural systems, predominantly those made of FRP thin plates. FRP thin plates may undergo dramatic collapse beneath the periodic ambient loads associated with fre...

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Bibliographic Details
Published in:Journal of physics. Conference series 2023-11, Vol.2616 (1), p.12054
Main Authors: Salem, M A M, Kassem, M, Amin, M S, Farag, H M, Osman, A
Format: Article
Language:English
Subjects:
Active control
Actuators
Composite materials
Damping
Finite element method
Mathematical models
Model updating
Parameters
Physics
Resonant frequencies
Sensors
Smart materials
Substrates
Thin plates
Vibration
Vibration control
Vibration response
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Summary:Ambient vibrations are one of the most unpredicted, undesired, and uncontrolled destructive causes of sudden failure for many types of structural systems, predominantly those made of FRP thin plates. FRP thin plates may undergo dramatic collapse beneath the periodic ambient loads associated with frequencies, particularly those approaching natural frequencies. Much research has been done over the last few decades to enhance the structural damping behaviour capabilities of thin plates against ambient vibrations via several means and systems of active vibration control. Recent, exceptional advancements in the field of smart materials and their applications in the field of active vibration control have provided a viable alternative to conventional vibration control tools (sensors/actuators). For instance, the coupled properties inherited by PWAS were utilised to develop durable, compact, and efficient actuators/sensors. To minimize the influence of the disparity between the theoretical and actual dynamic structure performances, the numerical FEM has to be updated using real structural data. In the present study, a model update of the structural parameters of a smart beam is carried out by employing PWAS as smart vibration control tools (sensor/actuator) that have been previously installed on the substrate structure. A finite element model is developed to mimic this intelligent beam. Then, laboratory experiments are undertaken to determine system parameters, which are used to update the finite element model. Finally, optimization is done to minimize the FEM variance in the designated structure vibration response from the real one.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2616/1/012054