Christoph Mertens, Anna Biancotto, Jurij Sodja, Andrea Sciacchitano

DOI Number: N/A

Conference number: IFASD-2024-101

The gust response of an active hinged folding wingtip device that is mounted on a flexible wing is studied in a wind tunnel experiment. The aeroelastic response of this wing to the
flow disturbance produced by a gust generator in the wind tunnel is analyzed using an optical measurement system that facilitates simultaneous measurements of the structural response of the wing and the aerodynamic flow field around the wing. Based on these measurements, the dynamic aeroelastic interaction can be characterized without requiring the instrumentation of the investigated wing model with sensors. The aerodynamic measurements are performed by tracking flow tracer particles. This paper presents a preliminary analysis on how these measurements can be used to determine the unsteady lift distribution during the gust encounter. The structural measurements are performed by tracking markers on the wing surface and fitting a structural model to these measurements. In this paper, this approach is validated by comparing the results to reference data from installed sensors, showing a good agreement.

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In Categories: 1. IFASD 2024, 1.Events, Experimental Methods Structural Dynamics and Aeroelasticity
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