Structural Frame FEA

Background

The Tempest is a proposed sixth-generation fighter aircraft currently under development for the Royal Air Force by BAE Systems and its partners. As part of the programme, full-scale demonstration models are being produced for display at international exhibitions and trade events.

One such model a 15 metre-long fibreglass replica required a robust internal steel support structure capable of withstanding stringent loading scenarios, including lifting forces, self-weight, and wind loads. Ensuring the structure met these requirements was critical before the model could be safely exhibited worldwide.

We were engaged to perform a detailed structural analysis of the steel framework to verify compliance with the relevant design and safety requirements.

Approach

To accurately assess the structure:

  • We used a combination of native SolidWorks data and STEP files to build a complete analysis model.
  • Due to the size and complexity of the assembly, we applied a hybrid modelling approach, incorporating both shell and solid finite elements.
  • Multiple loading cases were evaluated, including lifting loads, operational self-weight, and environmental wind loads.
  • Stress and deflection results were reviewed to identify areas that fell short of the required structural integrity thresholds.

Impact

Our analysis identified several regions that required strengthening. Working collaboratively with the design team, modifications were implemented to ensure the structure satisfied all required safety factors.

These improvements enabled the full-scale Tempest model to meet the necessary criteria for public display and ensured its readiness for its planned reveal at DSEI 2025.

Services Used

Analysis FEA

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Mechanical Engineering

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Product Rendering

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