Experimental study of the liquid damping effects on a SDOF vertical sloshing tank

The analysis of violent sloshing is great interest for European aeroplane manufacturers. It has been widely reported that aircraft fuel significantly damps wing vibrations, but the complexity fluid–structure phenomena still demands further research. aim this work to define an experimental methodology quantify force acting on a vertical Single Degree Of Freedom (SDOF) tank when accelerations are similar ones found in real wing. In work, two different methodologies presented calculation involved SDOF tests, finding very good level agreement between them. A Froude scaled experiment devised study, confirming first fluid presence increases damping system notably, and second slosh-induced composed inertial term dissipative term. study also shows shifted with respect position measurements, phase-shift key element fluid-induced energy dissipation. global connecting sources dissipation forces dynamics performed, obtaining quantitative contribution fluid’s role system. Finally, numerical model tested using experimentally obtained as input exhibiting previously results.