Generating aircraft and system turbulence induced fatigue spectra for future aircraft conceptual design

By incorporating key fatigue response quantities and leveraging spectral representations of external disturbances, the research aims to develop, validate and implement an enhanced methodology capable of deriving gust fatigue spectra across all aircraft locations for all aircraft configurations. This innovative approach empowers designers to make informed architectural decisions early in the design process, improving both the efficiency and effectiveness of aircraft development workflows.<br><br>The thesis introduces an advanced methodology for computing gust fatigue spectra under continuous turbulence conditions, surpassing the limitations of traditional empirical frameworks.

At the core of this method is a Finite Element-based technique that calculates Key Fatigue Response Quantities for discretized mission profiles and aircraft parameters. Atmospheric disturbances are modelled using well-established spectral descriptors, such as the Von Karman and Dryden models, to ensure accurate representation of environmental conditions. By integrating these components, the research derives a physics-based, lifecycle gust fatigue spectra, offering a detailed understanding of the fatigue loads experienced throughout the aircraft's operational life.<br><br><i>Thesis is embargoed until 31 December 2026.</i><br>