scholarly journals The non-stationary random vibration of an elastic circular cylindrical liquid storage tank to simulated earthquake excitation. Continued report, straightforward analysis of tank wall deformation due to finite amplitude liquid surface oscillation.

1986 ◽  
Vol 52 (481) ◽  
pp. 2382-2391
Author(s):  
Masahiko UTSUMI ◽  
Koji KIMURA ◽  
Masaru SAKATA
Keyword(s):  
Storage Tank ◽  
Random Vibration ◽  
Liquid Surface ◽  
Finite Amplitude ◽  
Tank Wall ◽  
Surface Oscillation ◽  
Earthquake Excitation ◽  
Liquid Storage ◽  
Wall Deformation ◽  
Liquid Storage Tank

scholarly journals Dynamic Responses of Liquid Storage Tanks Caused by Wind and Earthquake in Special Environment

2019 ◽  
Vol 9 (11) ◽  
pp. 2376 ◽  
Author(s):  
Wei Jing ◽  
Huan Feng ◽  
Xuansheng Cheng
Keyword(s):  
Wind Speed ◽  
Interference Effect ◽  
Storage Tank ◽  
Great Influence ◽  
Dynamic Responses ◽  
Tank Wall ◽  
Storage Tanks ◽  
Earthquake Interaction ◽  
Liquid Storage ◽  
Liquid Storage Tank

Based on potential flow theory and arbitrary Lagrangian–Eulerian method, shell–liquid and shell–wind interactions are solved respectively. Considering the nonlinearity of tank material and liquid sloshing, a refined 3-D wind–shell–liquid interaction calculation model for liquid storage tanks is established. A comparative study of dynamic responses of liquid storage tanks under wind, earthquake, and wind and earthquake is carried out, and the influences of wind speed and wind interference effect on dynamic responses of liquid storage tank are discussed. The results show that when the wind is strong, the dynamic responses of the liquid storage tank under wind load alone are likely to be larger than that under earthquake, and the dynamic responses under wind–earthquake interaction are obviously larger than that under wind and earthquake alone. The maximum responses of the tank wall under wind and earthquake are located in the unfilled area at the upper part of the tank and the filled area at the lower part of the tank respectively, while the location of maximum responses of the tank wall under wind–earthquake interaction is related to the relative magnitude of the wind and earthquake. Wind speed has a great influence on the responses of liquid storage tanks, when the wind speed increases to a certain extent, the storage tank is prone to damage. Wind interference effect has a significant effect on liquid storage tanks and wind fields. For liquid storage tanks in special environments, wind and earthquake effects should be considered reasonably, and wind interference effects cannot be ignored.

Boundary Element Method for Fluid-Structure Interaction Problems in Liquid Storage Tanks

1989 ◽  
Vol 111 (4) ◽  
pp. 435-440 ◽  
Author(s):  
I.-T. Hwang ◽  
K. Ting
Keyword(s):  
Finite Element ◽  
Boundary Element Method ◽  
Boundary Element ◽  
Storage Tank ◽  
Hydrodynamic Interactions ◽  
Tank Wall ◽  
Liquid Storage ◽  
Liquid Storage Tank ◽  
Elastic Tank ◽  
Element Method

The dynamic response of liquid storage tank, including the hydrodynamic interactions, subjected to earthquake excitations is studied by the combinations of boundary element method and finite element procedure in this paper. The tank wall and inviscid fluid domain are treated as two substructures of the total system-coupled through the hydrodynamic pressures. The boundary element method is employed to determine the hydrodynamic pressures associated with small amplitude excitations and negligible surface wave effects in fluid domain which are expressed as the frequency-dependent terms related with the natural vibration modes of elastic tank alone. These terms are incorporated into the finite element formulation of elastic tank in frequency domain and the generalized displacements are computed by synthesizing their complex frequency response using Fast-Fourier Transform procedure. Thus, the hydrodynamic interactions between the elastic flexible tank wall and the fluid are then solved. To demonstrate the accuracy and validity of the solution procedure developed herein, numerical examples are analyzed. Good correlations between the computed results with the referenced solutions in literature can be noted. The effects of fluid compressibility and tank flexibility are also evaluated in this work. Finally, the dynamic response of liquid storage tank due to seismic excitations is also analyzed.

Seismic Response of Floating Roof Liquid Storage Tanks: Part II—Contact Pressure Approach

2010 ◽  
Author(s):  
Alexander L. Kozak ◽  
Philip J. Cacciatore ◽  
L. Magnus Gustafsson
Keyword(s):  
Seismic Response ◽  
Storage Tank ◽  
American Petroleum Institute ◽  
Material Behavior ◽  
Engineering Practice ◽  
Earthquake Excitation ◽  
Element Analysis ◽  
Liquid Storage ◽  
Liquid Storage Tank ◽  
Nonlinear Geometric

Seismic response of liquid storage tank floating roofs involve phenomena that require dynamic analysis of nonlinear geometric and material behavior as well as surface to surface contact. Good engineering practice requires a practical analytical approach that captures the essential ingredients of structural behavior under earthquake excitation by making reasonable, conservative, and manageable approximations to the actual conditions. This paper discusses an approach to approximating the stresses and deformations of a liquid storage tank floating roof under seismic loading. The method is validated by a fully coupled fluid-structure interaction (FSI) finite element analysis using actual earthquake ground accelerations. The method is supported by both the American Petroleum Institute (API) and the Petroleum Association of Japan (PAJ).

Time-History Analysis of a Super-Large Storage Tank Under Seismic Excitation

2013 ◽  
Author(s):  
Fan Bu ◽  
Caifu Qian
Keyword(s):  
Storage Tank ◽  
Time History ◽  
Time History Analysis ◽  
Radial Deformation ◽  
Tank Wall ◽  
History Analysis ◽  
Medium Level ◽  
Wall Deformation ◽  
Slow Progress ◽  
Earthquake Action

In this paper, two finite element models are established for a super-large storage tank with or without a floating roof on the medium level. Time-history analysis with consideration of fluid-solid coupling for the deformation of tank wall and medium sloshing during or after an earthquake is performed with the emphasis on the effects of the floating roof. It is found that the upper part of tank is more sensitive to the earthquake action than the lower part. The wind girders and the reinforcing rings play a big role in limiting the radial deformation of the upper part of the tank wall. The floating roof has little effect on the tank wall deformation, but it is effective in suppressing the medium sloshing during the earthquake. After the earthquake, the radial deformation of the tank wall attenuates quickly, but the sloshing attenuation of the medium presents a slow progress and the floating roof inhibits the sloshing attenuation of the medium.

The effect of manifold in liquid storage tank applied to solar combisystem

2015 ◽  
Vol 29 (3) ◽  
pp. 1289-1295 ◽  
Author(s):  
Hyo Seok Son ◽  
Chul Kim ◽  
Douglas Reindl ◽  
Hiki Hong
Keyword(s):  
Storage Tank ◽  
Liquid Storage ◽  
Liquid Storage Tank
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