Jiri Cecrdle, Ondrej Vich, Jan Starek, Jarmil Vlach, Martin Kolar, Miroslav Smid

DOI Number: N/A

Conference number: IFASD-2024-056

This paper presents the new design of aeroelastic demonstrator for the experimental research into whirl flutter aeroelastic phenomenon. The demonstrator was adapted from the former aeroelastic model of a commuter aircraft for 40 passengers. It represents a half-wing with the span of 2.56 m with the nacelle and powered propeller (radius 0.35 m). In the frame of the previous project, two experimental campaigns were accomplished in 2014 and 2015. For the further usage of the demonstrator, the modifications and upgrades were proposed. This paper presents the preparatory activities including the demonstrator design, instrumentation, and aerodynamic and structural analyses. Two experimental campaigns are planned in 2024 including the measurements of aerodynamic derivatives and measurements of dynamic response and whirl flutter stability. The results will be used for verification of the computational tools and analytical models in the frame of the OFELIA project that is aimed at development of the new open fan-based power plant system
utilized for a new generation short-medium range turboprop aircraft.

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