Modeling of Strain Actuation on Relatively Soft Curved Beams by Piezoelectric Ceramics for De-Icing Systems

In this work, the effects of some geometric and mechanical parameters that characterize curved and relatively soft structures integrated with piezoelectric actuators are investigated. The effect of parameters such as the curvature, location, and extension of the piezo device, as well as the thickness of the bonding and its strength, are considered in view of a potentially lighter model that replaces the piezoelectric device via its actions, namely pin forces, whose layout and values are strongly dependent on the curvature. When comparing the results obtained by a finite element model of the structure with the piezo device and of the structure alone under the action of pin forces, dedicated indicators were found, which could be useful to support lighter modeling approaches and to predict the authority of the piezoelectric device.

Automated summary

This study investigates the effects of geometric and mechanical parameters in curved and relatively soft structures integrated with piezoelectric actuators. Parameters such as curvature, location, extension of the piezo device, bonding thickness, and strength are considered to develop a potentially lighter model that replaces the piezoelectric device with pin forces. The layout and values of the pin forces are strongly dependent on the curvature. Comparative analysis between finite element models with and without the piezo device reveals useful indicators for lighter modeling approaches and predicting the effectiveness of the piezoelectric device.