Reconfigurable piezoelectric metapanels for enhanced aeroelastic performance

• Grant number: 23/04298-6
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Effective date (Start): October 01, 2023
• Effective date (End): January 31, 2026
• Field of knowledge: Engineering - Aerospace Engineering - Aerospace Structures
• Principal Investigator: Carlos de Marqui Junior
• Grantee: Larissa Drews Wayhs Lopes
• Host Institution: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
• Associated research grant: 18/15894-0 - Periodic structure design and optimization for enhanced vibroacoustic performance: ENVIBRO, AP.TEM

Abstract

Vibration, noise, and stability are typical issues of aircraft structures, e.g. panels, exposed to extreme operating conditions such as supersonic and hypersonic flight. Passive control techniques have been investigated to enhance the vibroacoustic performance of supersonic aeroelastic panels. When compared to active control techniques, the passive ones are relatively simple to design and usually have low power consumption. Considering the aeroelastic behavior of panels, most of the passive control cases explored in the literature are achieved by including additional mechanical elements, e.g. stiffeners and additional layers of materials. Since the properties of the mechanical elements can not be easily adjusted, these solutions are not suitable for a changing vibration environment. In this sense, the use of smart materials can lead to reconfigurable passive control alternatives and, consequently, high-performance solutions for different conditions. In this context, the goal of this project is to design supersonic smart metapanels and extend concepts and properties of metamaterials to aeroelasticity of panels. We aim to develop a model framework to investigate different cases, from linear periodic and graded configurations to modes tailoring and nonlinear vibration absorbers. The most suitable configuration for a certain flight condition can be achieved by updating the electrical domain of the piezoelectric metamaterial panel. (AU)