Banca de DEFESA: Gilberto de Sousa Pinheiro Filho

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : Gilberto de Sousa Pinheiro Filho
DATE: 09/05/2024
TIME: 09:30
LOCAL: Plataforma Microsoft Teams
TITLE:

Development of metamaterial for vibration attenuation in rotors

KEY WORDS:
PAGES: 100
BIG AREA: Engenharias
AREA: Engenharia Mecânica
SUMMARY:

Due to rapid increase in demand for higher efficiency and capacity rotating machinery, vibration related problems also grow, demanding better solutions to vibration control. The current state of the art consists of gas lubricated bearings, but new approaches are being studied, such as the use of metamaterials on rotating machines. Various types of resonators have been studied, on those studies the problems of gyroscopic influence on frequency response was shown to be significant. Apart from that, one major problem identified was the difficulties in manufacturability of the resonators. This problem is the main focus of this work, culminating on an experimental analysis. To achieve this, the metastructure will be analysed using wave based numerical methods, the resonators will be tuned to attenuate the target frequencies and based on the tuning parameters a CAD model is designed and then manufactured. A bench test is performed to check for the band attenuation.

COMMITTEE MEMBERS:
Externo à Instituição - RODRIGO NICOLETTI - USP
Presidente - 2126286 - ADRIANO TODOROVIC FABRO
Interna - 1769309 - ALINE SOUZA DE PAULA