Banca de QUALIFICAÇÃO: ANDERSON EUGENIO SILVA DA COSTA

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : ANDERSON EUGENIO SILVA DA COSTA
DATE: 17/10/2024
TIME: 09:00
LOCAL: Auditorio do LAMP
TITLE:

DEVELOPMENT OF A TEACHING PLATFORM FOR SEISMIC EXPERIMENT IN A SANDBOX

KEY WORDS:

Seismic modeling. Sandbox. Piezoelectric transducers. Stepper motors. Motion accuracy.

PAGES: 50
BIG AREA: Engenharias
AREA: Engenharia Elétrica
SUBÁREA: Eletrônica Industrial, Sistemas e Controles Eletrônicos
SPECIALTY: Automação Eletrônica de Processos Elétricos e Industriais
SUMMARY:

Sandbox seismic modeling is an efficient technique for simulating geological features and studying seismic wave propagation in a controlled environment, offering results closer to reality compared to numerical modeling. The approach allows the investigation of complex phenomena, such as deformation and wave propagation, in addition to testing seismic processing algorithms, and is mainly applied in the analysis of large lineaments and continental margins. The construction of the experiment involves the use of high-frequency piezoelectric transducers to emit and capture acoustic waves, generating data that are transformed into interpretable images of geological structures. However, there are challenges in choosing materials that reproduce real petrophysical properties, such as the propagation speed of compressive waves, and that minimize wave attenuation, maintaining the repeatability of the experiments. Another challenge is related to the adaptation of grain sizes and wave frequencies, with the aim of avoiding interference in the imaging caused by factors such as particle size distribution and energy scattering at interfaces. The teaching platform was built in a CNC-cut acrylic box, with a sturdy aluminum frame to support the sensors and equipment. The movement of the sensors is automated by stepper motors, which ensure precision in movement along the physical model. This automation allows the acquisition of seismic data in a precise and controlled manner, facilitating the production of two- and three-dimensional models that simulate seismic propagation on a reduced scale. This advanced infrastructure offers an educational and efficient approach to the study and visualization of complex geological processes, contributing to the advancement of understanding of seismic response in real situations.

COMMITTEE MEMBERS:
Presidente - 1149567 - ANDRES ORTIZ SALAZAR
Interno - 350693 - ANDRE LAURINDO MAITELLI
Externo à Instituição - DIEGO ANTONIO DE MOURA FONSECA - UFRN
Externo à Instituição - JOSE ALVARO DE PAIVA - IFRN