https://repositorio.ufsc.br/handle/123456789/177739 2026-05-10T14:47:17Z 2026-05-10T14:47:17Z Oliveira, Mateus Vilela de Aguiar, Alice Torres Pereira, Maria Cecilia https://repositorio.ufsc.br/handle/123456789/270063 2025-11-13T15:22:37Z 2024-10-24T00:00:00Z

Management Theory and Documentation Standards Integrated with Graph-Based Project Organization: A Case Study for PdQSat CubeSat Project Oliveira, Mateus Vilela; de Aguiar, Alice Torres; Pereira, Maria Cecilia This study explores the application of management theory and graph-based information traceability in the PdQSat project, currently in progress at Federal University of Minas Gerais (UFMG). Project management standards, such as PMBOK® and ECSS, and NASA’s System Engineering guidelines provide a strong foundation for development, yet each project demands a tailored approach. The goal of this research is to streamline PdQSat’s documentation by focusing on essential templates, improving administrative processes and enhancing efficiency. The authors employ a graph-based method to visualize dependencies between requirements, stakeholders, subsystems and other project artifacts, facilitating better communication and agility. By integrating management theory and graph-based tools, this approach aims to improve project outcomes and inspire similar aerospace engineering projects, highlighting the value of management in technical development. Additionally, the study seeks to support the formation of skilled workforce in the aerospace industry through academic projects.

2024-10-24T00:00:00Z Silveira, Jarbas Durão, Otavio Filho, Edilson Almeida, Alexandre Moreira, Nicolas Baptista, João Schad, Valter Laurini, Luiz Henrique Possamai, Rodrigo https://repositorio.ufsc.br/handle/123456789/270062 2025-11-13T15:22:30Z 2024-10-24T00:00:00Z

The NASCERR Mission – An University/Private Sector Cooperation with Cubesat Silveira, Jarbas; Durão, Otavio; Filho, Edilson; Almeida, Alexandre; Moreira, Nicolas; Baptista, João; Schad, Valter; Laurini, Luiz Henrique; Possamai, Rodrigo NASCERR stands for Radiation Hard Electronics Nanosatellite (Nanosatélite Com Eletrônica Robusta à Radiação, in Portuguese). It was proposed and accepted in a call issued by the Brazilian National Research Council – CNPq for Brazilian universities and public research institutes for the development of CubeSats and their equipment/subsystems. One of the requirements of the call was the mandatory participation of private companies in the proposal and development of the CubeSat. Qualification testing at these levels will be performed at the Integration and Testing Lab (LIT) of the National Institute for Space Research (INPE). The CubeSat will communicate with ham frequencies and its coordination is being requested by IARU. It is a 2U cubesat where 1U holds the bus and the other U is for the payloads. NASCERR, as required by the CNPq call, is a cooperation between the university and Brazilian companies. The attitude determination and control subsystem, the solar panels, the electronic power subsystem, the structure, and the onboard and ground software were developed by these companies, while the onboard computer, the transceiver, and the onboard antenna set were imported. All the subsystems were already either delivered or contracted with delivery within the coming six months. Students from UFC and UFSM participate in the project with scholarships from its budget. Only a proto-flight model will be developed. Qualification testing at these levels will be performed at the Integration and Testing Lab (LIT) of the National Institute for Space Research (INPE). The CubeSat will communicate with ham frequencies and its coordination is being requested to IARU. This is the first CubeSat mission managed and developed by UFC. The mission was presented to the Brazilian Space Agency and its Space Mission Selection and Acceptance Process - ProSAME for habilitation in the official space mission portfolio of the country. The schedule of the call requests the cubesat be ready for delivery to launch by the end of 2025. Launching and ground station and operation are not included in the CNPq provided budget. The NASCERR launch is planned to 2026. This is the first CubeSat mission managed and developed by UFC. The paper presents the CubeSat's operating range, electrical schematics, and other technical details.

2024-10-24T00:00:00Z Rocco, Evandro Marconi Gonçalves, Liana Dias Neto, José Batista da Silva Chagas, Ronan Arraes Jardins Junior, Antonio Carlos de Oliveira Pereira https://repositorio.ufsc.br/handle/123456789/270061 2025-11-13T15:21:26Z 2024-10-24T00:00:00Z

Analysis of fuel consumption for orbital correction maneuvers to mitigate injection errors after launch Rocco, Evandro Marconi; Gonçalves, Liana Dias; Neto, José Batista da Silva; Chagas, Ronan Arraes Jardins; Junior, Antonio Carlos de Oliveira Pereira The BiomeSat mission satellite, which is being developed by the National Institute for Space Research (INPE), consists of a remote sensing nanosatellite, CubeSat type, in the 12 kg class, with a dimension of 6U. The objective of the mission is to collect radiometric data from Brazilian territory in the visible and near-infrared bands of the electromagnetic spectrum. In addition, the satellite must be capable of receiving transmissions from environmental data collection platforms and information about vessels that use the AIS system. To ensure mission success, preliminary studies must be carried out carefully. Among them, we can highlight the studies presented in this paper, which define the possibilities of transfer and correction maneuvers necessary to transfer the satellite from the orbit into which it was injected by the launcher to the nominal orbit, as well as an analysis of the fuel budget necessary to perform such maneuvers in Launch and Early Orbit Phase (LEOP) operations.

2024-10-24T00:00:00Z Primo, David Pablo Alves Moura, Yan da Silva de Santiago, Rodrigo Silveira Ferreira, Artur Iage Correia dos Santos Soares, Lucas Lincoln Fonseca Beal, Valter Estevao Albino, Juan Carlos Romero Daltro, Leonardo Ferreira da Silva, Edmar Soares https://repositorio.ufsc.br/handle/123456789/270060 2025-11-13T15:21:02Z 2024-10-24T00:00:00Z

FEA-Based Vibration Analysis of Cubesat Battery Structures Primo, David Pablo Alves; Moura, Yan da Silva; de Santiago, Rodrigo Silveira; Ferreira, Artur Iage Correia dos Santos; Soares, Lucas Lincoln Fonseca; Beal, Valter Estevao; Albino, Juan Carlos Romero; Daltro, Leonardo Ferreira; da Silva, Edmar Soares This paper presents a finite element analysis (FEA) of the structural behavior of the battery pack of a 1U CubeSat nanosatellite developed at Senai Cimatec, with a focus on battery fixation. The static analysis reveals that the structure remains within stress limits during assembly and launch. Modal analysis identifies critical natural frequencies and vibration modes, highlighting the need for structural reinforcement to mitigate resonance effects. Random vibration analysis demonstrates that the battery pack components can withstand the expected random vibrational loads during launch. It is recommended to implement additional docking mechanisms or support structures to enhance the structural robustness of the CubeSat.

2024-10-24T00:00:00Z