Advanced search
Start date
Betweenand

Investigating wave-guiding effects, tuning mechanisms for bandgap, and nonlinearities induced by sloshing in fluid-filled phononic crystals and acousto-elastic metamaterials

Grant number: 24/07549-2
Support Opportunities:Scholarships abroad - Research Internship - Doctorate
Effective date (Start): September 01, 2024
Effective date (End): August 31, 2025
Field of knowledge:Engineering - Mechanical Engineering - Mechanics of Solids
Principal Investigator:Thiago de Paula Sales
Grantee:Vinícius Mauro de Souza Santos
Supervisor: Morvan Ouisse
Host Institution: Divisão de Engenharia Mecânica (IEM). Instituto Tecnológico de Aeronáutica (ITA). Ministério da Defesa (Brasil). São José dos Campos , SP, Brazil
Research place: Institut Franche-Comté Electronique Mécanique Thermique Et Optique - Sciences Et Technologies, France  
Associated to the scholarship:23/11207-7 - On the wave propagation in fluid-filled phononic crystals: from wave-guiding effects to nonlinear phenomena caused by sloshing, BP.DR

Abstract

This research project is proposed for a one-year research internship abroad (BEPE) during the doctoral studies of Vinícius Mauro de Souza Santos, who is funded by FAPESP under grant number #23/11207-7. It will be conducted at UBFC, in the Franche-Comté Electronique Mécanique Thermique et Optique - Sciences et Technologies (FEMTO-ST) Institut, located in Besançon, France, under the supervision of Prof. Morvan Ouisse, who has extensive expertise in vibroacoustics, structural dynamics, smart structures, phononic crystals (PCs), and acoustic metamaterials. The main objectives of this research are to investigate wave-guiding effects, tuning mechanisms for bandgap position and width, and nonlinearities induced by sloshing in fluid-filled PCs and elastic metamaterials (EMs), aiming to control wave propagation characteristics through elastic media. To accomplish these, investigations will rely on models developed using wave propagation methods, such as the Wave-based Finite Element Method (WFEM), whereas the traditional FEM will be adopted to tackle systems including nonlinearities owed to sloshing. Experiments will be performed to validate, at least partially, observed vibratory behaviors; and/or to reveal phenomena that are not adequately captured by models. By performing such investigations, one hopes to foster alternative means to mitigate undesirable vibrations in real-life structures, possibly leading to safer operational conditions and enhanced structural durability - whilst leveraging behaviors stemming from periodic structures of the considered types.

News published in Agência FAPESP Newsletter about the scholarship:
More itemsLess items
Articles published in other media outlets ( ):
More itemsLess items
VEICULO: TITULO (DATA)
VEICULO: TITULO (DATA)

Please report errors in scientific publications list using this form.