Dynamic safety and degradation analysis of an aircraft internal air system

Tolo, Silvia; Andrews, John; Thatcher, Ian; Stamp, David

Abstract

The modelling of the dynamic behaviour of engineering systems offers an invaluable insight in the evolution of degradation and response of systems to failure and represents an essential step to lay the basis for resilience analysis. While traditional risk analysis methodologies, such as Fault or Event Trees, lack the ability to represent dynamic features and component dependencies, alternative simulation techniques offer such capability at the cost of higher computational complexity. This study proposes a Petri Net (PN) model of the internal air system of a jet engine, whose malfunction may result in the structural damage of the turbine disc. The analysis predicts the evolution of the degradation of critical system components, considering on-wing repairs, and their collective impact on the structural safety of the engine. The results are analysed both for critical and healthy degradation states, to offer a complete understanding of the system behaviour with the potential for further design and maintenance optimization.

Citation

Tolo, S., Andrews, J., Thatcher, I., & Stamp, D. (2023, April). Dynamic safety and degradation analysis of an aircraft internal air system. Presented at 62nd ESReDA Seminar, University of Twente, the Netherlands

• Presentation Conference Type: Other
• Conference Name: 62nd ESReDA Seminar
• Start Date: Apr 12, 2023
• End Date: Apr 13, 2023
• Deposit Date: May 15, 2023
• Publicly Available Date: May 15, 2023
• Public URL: https://nottingham-repository.worktribe.com/output/20818880
• Related Public URLs: https://www.esreda.org/event/62nd-esreda-seminar-april-12th-13rd-2023-university-of-twente-the-netherlands-2/