Emilio Santos, Alan Serena, Mordechay Karpel, Felix Arevalo, Hector Climent

DOI Number: N/A

Conference number: IFASD-2024-170

Air vehicles operating in inter-urban regional connections could take benefit of adopting hybrid-electric propulsion technologies and associated complementary solutions for reducing the environmental footprint of aviation, towards climate neutrality. Airbus Defence and Space is partner of a consortium which, as part of the Clean Aviation Strategic Research and Innovation Agenda (SRIA), is responsible of the engineering solution of a short-range (500-1000 km) Hybrid-Electric Regional Aircraft, one of the new aircraft architectures that will thrust the aviation towards 2050 climate neutrality. This paper summarises the aircraft architecture solution and the aeroelastic challenges/technologies that will be developed during the different phases of the project. Some of the technologies developed for supporting the design of the HERA aircraft are:

  1. The Hybrid-Electric Regional Architecture (HERA) aircraft will include distributed propeller-type propulsion with inertia and aerodynamic impacts on wing component that
    shall be considered thru high-fidelity simulations. These simulations are performed using a Fluid-Structure Interaction (FSI) procedure based on MSC.Nastran coupled with
    different High-Fidelity aerodynamics solvers. A graphical workbench DYNFSI is being developed to increase robustness and enhance the user experience when calculating 1-way or 2-way unsteady aerodynamics.
    2.The rigid-body response of the aircraft will be improved by introducing the Integrated
    Flexible Aircraft Model (IFAM), with improved coupling between flight mechanics and
    aeroelastic formulation, all integrated in the industrial procedure of Airbus Defence and
    Space (using DYNRESP software) to calculate Dynamic Loads.

The Structural Dynamics and Aeroelasticity in the HERA project are described with emphasis on the previous two points and future activities (LCOs/flutter suppression activities, wind-tunnel tests, digitalization of methods and tools, etc.)

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In Categories: 1. IFASD 2024, 1.Events, Computational Aeroelasticity
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