TRABALHOS PUBLICADOS
2025 |
Comparative Safety Analysis of FHA, STPA, and FRAM: Insights from the TAM Flight 3054 Accident Proceedings Article Bourguignon, Vitor Henrique Oliveira; Rocha, Guilherme Conceição @inproceedings{Bourguignon2025ComparativeSafety,This paper evaluates three hazard analysis methods in the context of aircraft system safety: Functional Hazard Assessment (FHA), Systems-Theoretic Process Analysis (STPA), and the Functional Resonance Analysis Method (FRAM). The study applies these methods to the TAM Flight 3054 accident case, highlighting the capabilities and limitations of each approach. The analysis shows that while FHA meets regulatory requirements by identifying functional failure conditions, STPA expands the analysis by addressing human interactions and control logic issues. FRAM complements both by revealing how normal performance variability and organizational factors can combine to produce accidents. The findings indicate that no single method alone is sufficient to ensure safety in complex systems. A combined approach integrating these methodologies is recommended to provide a more robust and comprehensive safety assessment in aeronautical system design. |
2020 |
FRAM Analysis of Aircraft Landing Phase with Focus on Runway Excursion Proceedings Article Reiser, Christianne; Villani, Emilia @inproceedings{Christianne2020Flightb,Runway excursion is the type of aircraft accident that most frequently occurs, contributing to around 25% of the occurrences. To reduce this rate, several countermeasures have been proposed in the last years; mainly based on aircraft incident investigation and analysis. In order to search for improvements to avoid runway further Aviation System excursions despite of these occurrences, an application of the FRAM (Functional Resonance Analysis Method) focusing on the landing phase the exploration of how functional variability can escalate into unexpected, and often unwanted, events. It has been used for accident analyses and risk assessments in safety. |
2009 |
Aplicação de FRAM (ferroelectric random access memory) em intervalômetro para dispositivos de autodefesa Proceedings Article Fonseca, Elói @inproceedings{El\'{o}i2009FRAMb,Emprego de memória FRAM (ferroelectric random access memory) para registro no monitoramento de acionamento seqüencial de cargas eletricamente ignitadas, com capacidade de determinação da duração dos impulsos, intervalo entre os mesmos e seqüência de disparo efetuado, viabilizando a recuperação de dados com alto nível de segurança na integridade da informação. Palavras-chave FRAM, monitoramento, autodefesa. |