Banca de QUALIFICAÇÃO: MATHEUS DE ALMEIDA SOARES

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : MATHEUS DE ALMEIDA SOARES
DATE: 19/12/2023
TIME: 14:00
LOCAL: remota
TITLE:

POINTING OF CUBESATS WITH AND WITHOUT REACTION WHEELS – COMPARATIVE EFFECTS AND APPLICATION TO THE NANOMIRAX/CRON-1 MISSION

PAGES: 80
BIG AREA: Engenharias
AREA: Engenharia Mecânica
SUMMARY:

NANOMIRAX is a 2U nanosatellite, whose payload is the X-ray Cosmic Burst Localizer (LECX) experiment, capable of capturing gamma ray bursts (GRB) between 30 and 200 keV with a 53°×53° field of view. For the mission's objectives, the experiment should spend more time pointed at space than at Earth. The satellite is made up of GPS sensors, magnetometers and solar sensors. The objective of this work is to compare the performance of attitude control with magnetorqueators and reaction wheels given the strategies: detumbling and limit zone control. Detumbling aims to reduce the satellite's angular velocity. Limit zone control aims to prevent the experiment from being directed towards Earth and maximizing the search area. Modeling of NANOMIRAX's orbital motion and attitude was validated in numerical simulations. The performance of magnetic actuators was compared in relation to the type of limit zone control strategy, taking into account the magnetization and demagnetization of these equipment. For the reaction wheels the performance was compared in relation to the wheel arrangement with a PD control type.

COMMITTEE MEMBERS:
Presidente - Interno ao Programa - 1347739 - LUIZ DE SIQUEIRA MARTINS FILHO
Membro Titular - Examinador(a) Interno ao Programa - 2249350 - DIEGO PAOLO FERRUZZO CORREA
Membro Titular - Examinador(a) Externo ao Programa - 3086847 - HELOISE ASSIS FAZZOLARI
Membro Suplente - Examinador(a) Interno ao Programa - 1672967 - MAGNO ENRIQUE MENDOZA MEZA
Membro Suplente - Examinador(a) Externo ao Programa - 1761038 - EDUARDO DOS SANTOS FERREIRA