![]() This phenomenon in a moving tank is an important field of the fluid-structure dynamic research. Sloshing is the low frequency oscillations of the free surface of a liquid in a partially filled container. The effects of longitudinal aceleration of the tank system on the liquid surface inclination and consequently shifting of centroids and moment of inertia are illustrated. The semi analytical response is obtained by means of SimuLink™ Matlab Software. The vibration characteristics of the partially filled tank vehicle are evaluated in terms of load shift, forces and moments induced by the cargo movement, and dynamic load transfer in the longitudinal direction. The liquid load movement occurring in the roll and pitch planes of the tank is derived as a function of the longitudinal acceleration, and then the corresponding shifted load is expressed in terms of center of mass coordinates and mass moments of inertia of the liquid bulk, assuming negligible influence of fundamental slosh frequency and viscous effects. A three-dimensional quasi-static model of a partially-filled tank of circular cross-section is developed and integrated into a comprehensive three-dimensional vehicle model to study its dynamic performance as a function of acceleration, and the fill volume. In this study, the vibration of a cylindrical tank partially filled with liquid under motion modeled as mass lumped is investigated. Keywords: Moving Tanks Sloshing Natural Frequencies Dynamic Response Variable Moment of Inertia Mechanical Engineering Department, Faculty of Engineering Technology, Balqaa Applied University, Amman, JordanĮmail: Jrevised Jaccepted August 1, 2012 ![]()
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