||Nonlinear Dynamical Analysis of Interaction between Rubberlike Membrane and Liquid in a Rectangular Tank
The aim of this study was to clarify the nonlinear oscillation of the sloshing-like behavior such as a container made of a flexible membrane like a bladder tank. The 2-dimensional interaction of a rubberlike membrane and liquid problem in a rectangular tank under horizontal vibration was examined by the arbitrary Lagrangian-Eulerian finite element method (ALE-FEM) and the influence of a large excitation and membrane tension were examined. Then, the 3-dimensional rubberlike membrane and liquid interaction problem in rectangular tank under the horizontal vibration are examined by the arbitrary Lagrangian-Eulerian finite element method (ALE-FEM). The influences of large excitation were examined. According to many parametric calculations, we confirmed validity of the present analysis and comparison with sloshing model. In addition, the effects of finite deformations of the membrane, i.e., material and geometrical nonlinearities in the membrane and the liquid, are taken into consideration. Furthermore, the influences of tank depth were examined. The effects of finite deformation of the membrane, i.e., material and geometrical nonlinearities of the membrane and liquid were considered. Last, the implementation of rectangular tank containing liquid with membrane-covered upper and lower surfaces is taken into consideration.
首都大学東京, 2017-03-25, 博士（工学）