Skip to main content Skip to footer
Alma universitas studiorum parmensis A.D. 962 - Università di Parma
Università degli Studi di Parma

CHIMERA? - is there a CHance that Indexes and Measurements of the energy conversion Efficiency Reveal system Alterations?

Finanziato dall'Unione europea - NextGenerationEU
Ministero dell'Università e della Ricerca
Italia Domani - Piano Nazionale di Ripresa e Resilienza
Prin 2022
Dipartimento di Ingegneria e Architettura
Print

Details

ERC sector
PE8 - Products and Processes Engineering
ERC subsector
PE8_7 - Mechanical engineering
Project start date
CUP
D53D23003080006
Financial support received
€54.652,00

Description and purpose

The project aims at developing a new method for Structural Health Monitoring (SHM) based on vibrations analyses. Indeed, damage affects the dynamic behavior of the system, which is related to natural frequencies and mode shapes. In this project, a new method based on piezoelectric transducers will be characterized. Moreover, the feasibility of implementing the method on a low-cost, low-power hardware platform will be studied, fostering an IoT compliant implementation of the system. 

Webiste: https://www.chimeraresearchproject.com/ 

 

 

Purpose

The project aims at assessing the potentiality and the applicability of EEC-based SHM technique. In simple terms, the EEC can be expressed, for different smart materials, as a function of the material and system properties. When an alteration occurs, these features change and in turn change the EEC whose estimate can be used for detection purposes. This project will formalize the working principle. Moreover, the sensitivity of the project due to the measurement uncertainty will be analyzed.

Expected results

The activities are structured to the aim of:

  1. assessing the feasibility of the use of EEC measurement for alteration detection and highlighting similarities between analytical formalizations for two different smart-materials, paving the way for method generalization;
  2. evaluating the method sensitivity and its behaviour when environmental conditions change;
  3. testing its feasibility on a real-like damaged structure.

Achieved results

A new approach to SHM based on the analysis of the interaction between structures and the intelligent materials embedded in them has been developed and validated with piezoelectric and magnetostrictive transducers. The experiments showed promising results in detecting the damage, its location and severity with a good level of robustness to temperature changes. The feasibility of an edge implementation has been tested. Validation on real-like structures and edge implementation is ongoing. 

Modified on