In this paper, applications of the theory developed in the companion paper by Liu and Uras (1989) are presented. The effects of various types of ground motion on the dynamic stability of the fluid-structure system are analyzed. The stability criteria of liquid-filled shells subjected to horizontal and rocking excitation, shear loading, bending/shear combined loading, and vertically applied load are established. The resulting instability regions and stability charts are given in tables and in ω-ε plots. Under horizontal and rocking motion, modal coupling in the circumferential direction as well as in the axial direction is observed. The possible buckling modes for a tall tank can be identified as cos2θ, cos3θ and cos4θ under horizontal and rocking motion, and cos5θ and cos6θ, under vertically applied load. For a broad tank two sets of instability modes are found cos6θ through cos9θ, and cos12θ through cos14θ under horizontal and rocking motion.
|Number of pages
|American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
|Published - Dec 1 1989
ASJC Scopus subject areas
- Industrial and Manufacturing Engineering
- Mechanical Engineering