关键词: 贮箱振动, 液固耦合, 有限元法, 自由面波

Abstract: Some numerical difficulties of using Irons method for symmetrizing the finite-element equation with the pressure-displacement model are discussed. One of the symmetrization methods presented by the anthers is adopted and the related computer program is written. By use of this program, the coupled dynamic problems of liquid containers are numerically studied. Emphasis is put on the effects of free surface wave on the results of computation.

Key words: vibration of tank, fluid-solid interaction, finite element method, free surface wave