A reduced order model for liquid sloshing in tanks with flexible baffles using boundary element method

作者：Noorian M A; Firouz Abadi R D; Haddadpour H^*

来源：International Journal for Numerical Methods in Engineering, 2012, 89(13): 1652-1664.

DOI：10.1002/nme.3304

• sloshing
• elastic tank
• flexible baffle
• free vibrations
• fluid-solid interaction
• boundary element method

In order to study the interaction of sloshing and structural vibrations of baffled tanks, a reduced order model based on modal analysis of structure model and boundary element method for fluids motion is developed. For this purpose, the governing equations of elastic structure and incompressible flow are used to derive simple models to simulate both fields. Using the modal analysis technique, the structural motions are applied to the fluid model and on the other hand by using boundary element method, the fluid loads are applied to the structural model. Based on this formulation, a code is developed which is applicable to an arbitrary elastic tank with arbitrary arrangement of baffles. The obtained results are validated with literature data and then the effects of baffle flexibility on the sloshing frequencies and structural vibration frequencies are investigated.

• 出版日期2012-3-30