About this Abstract |
Meeting |
MS&T21: Materials Science & Technology
|
Symposium
|
Advances in Dielectric Materials and Electronic Devices
|
Presentation Title |
Sensitivity Analysis on the Application of Direct Piezo-electric Effect Using the Finite-element Extended Complex Variable Method |
Author(s) |
Carlos Acosta, Jose de los Santos Guerra, Ruyan Guo, Amar Bhalla |
On-Site Speaker (Planned) |
Jose de los Santos Guerra |
Abstract Scope |
The main goal of this investigation is to focus on the application and optimization of the direct piezoelectric effect in energy harvesting from low-frequency mechanical vibration. To achieve this goal, a sensitivity analysis was performed to study the coefficients that characterize the material properties through the implementation of the finite-element extended complex variable method. This numerical approach allows the computation of derivatives with respect to changes in geometry, material properties, and boundary loads by an iterative approach.
This method offers significant advantages compared to the traditional finite-element approach given the highly accurate derivative information that can be obtained. The extended complex variable method was implemented in Python and the system of complex equations was solved using Scipy. The results showed good agreement with voltages and mechanical displacements form values obtained using commercial finite-element software. |