Parameter identification strategy for online detection of faults in smart structures for energy harvesting and sensing

Maruccio, Claudio and Montegiglio, Pasquale and Kefal, Adnan (2020) Parameter identification strategy for online detection of faults in smart structures for energy harvesting and sensing. In: 1st Virtual Euroepan Conference on Fracture (VECF1), Online

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Abstract

In this work, we propose a simple computational method to detect faults in smart piezoelectric structures based on a synchronization strategy. The flexible smart structures are in general described as distributed systems governed by partial differential equations. Numerical discetization is employed to derive a reduced order model such as his dynamic response is simulated solving only ordinary differential equations. Then, the parameter identification strategy is formalized as a dynamic optimization and evolution problem through a further proper set of ordinary differential equations. Lyapunov' theorems are employed to derive an integral type identification algorithm and to ensure the convergence of the procedure. The method is suitable to assess and model nonlinearities in the response of a flexible piezoelectric smart device due to material degradation or local failure. These features are very important to detect faults in the structure and to assess the system reconfiguration properties in real time.
Item Type: Papers in Conference Proceedings
Subjects: T Technology > TJ Mechanical engineering and machinery > TJ163.12 Mechatronics
Divisions: Faculty of Engineering and Natural Sciences
Depositing User: Adnan Kefal
Date Deposited: 20 Sep 2020 20:32
Last Modified: 08 Aug 2023 16:16
URI: https://research.sabanciuniv.edu/id/eprint/40486

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