Initial Experimental Analysis of Damping due to Liquid Sloshing in a Scaled Aircraft Wing Model

Lucian Constantin*, Joe De Courcy, Branislav Titurus, Thomas C S Rendall, Jonathan E Cooper, Francesco Gambioli

*Corresponding author for this work

Research output: Contribution to conferenceConference Paperpeer-review

Abstract

Fuel sloshing inside aircraft wings can potentially increase the net damping of the wing structure. Building upon previous work on simpler sloshing systems, we present a scaled research wing prototype equipped with a fuel tank that allows the observation of liquid sloshing and quantification of induced dynamic effects. Experiments were conducted at 50% filling level and the equivalent dry case with frozen mass. We demonstrate substantial additional damping effects in multiple frequency components when liquid is added inside the tank. The dissipative
effect is most noticeable in the first frequency component with deformations typical of the first bending mode of the structure, as the damping ratio was found to be substantially increased in the sloshing case regardless of the amplitude of motion.
Original languageEnglish
Number of pages19
Publication statusPublished - 17 Jun 2022
Event19th International Forum on Aeroelasticity and Structural Dynamics (IFASD 2022) - Madrid, Spain
Duration: 13 Jun 202217 Jun 2022

Conference

Conference19th International Forum on Aeroelasticity and Structural Dynamics (IFASD 2022)
Abbreviated titleIFASD 2022
Country/TerritorySpain
CityMadrid
Period13/06/2217/06/22

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