Representation of Fuel Sloshing in Cylindrical Tanks by an Equivalent Mechanical Model

A mechanical model for representation of linear fuel sloshing with damping is derived by comparison and extension of available theoretical results in both translation and pitching without damping. Available experimental data indicates tha t the mechanical model representation is satisfactory for predicting total force response. A simple interpretation of the formulation also makes it possible to apply the mechanical model to the case of axial thrust acting in addition to the vertical gravitational field.