n this paer,effects of hydrostatic pressures on the natural frequencies of cylindrical liquid storage containers are analyzed by using nonlinear straindisplacement equation of the shell,and the system matrix equation of motion is derived with an additive stiffness matrix due to the presence of the initial stress field.

Mutil-material ALE method and fluid-structure interaction balance bisection method for parallel computing were used to numerically solve dynamic behavior of single/dual liquid-filled container during the impact with the ground,and the simulation result will provide importance reference for the design of dual liquid-filled container.

The numerical simulation of flexible fluid-filled container\'s stability on inclined surface was finished through adopting the Arbitrary Lagrangian-Eulerian (ALE) and the penalty-based method for coupling function between the structure and liquid.