Numerical study of base-isolated cylindrical liquid storage tanks using coupled acoustic-structural approach

Rawat, Aruna; Matsagar, Vasant; Nagpal, A. K.

doi:10.1016/j.soildyn.2019.01.005

Cited by 41 publications

(12 citation statements)

References 52 publications

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“…In the research using the distributed mass model [19][20][21][22][23][24][25][26][27], the finite element method is generally used to establish the model of the liquid storage tank for liquid-structure coupling analysis. e tank wall is always regarded as the structure element, and the liquid is regarded as the fluid element.…”

Section: Introductionmentioning

confidence: 99%

“…e dynamic characteristics and failure modes of the tank's structure were investigated by considering the rebar's effect. Aruna Rawat [24,25] investigated the three-dimensional ground-supported cylindrical and rectangular rigid liquid storage tanks filled with water and subjected to seismic base excitation. e analyses of the tanks were carried out using coupled acousticstructural and coupled Eulerian-Lagrangian approaches of the finite element method.…”

Section: Introductionmentioning

confidence: 99%

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Modeling Research and Test Verification of the Seismic Response of a Multistage Series Liquid Tank

Yao

Meng

Chu

et al. 2021

Shock and Vibration

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Liquid storage tanks are lifeline structures and strategically very important. Heavy damages or even collapse of these facilities subjected to strong earthquakes may cause disastrous consequences. In this paper, the seismic response of a multistage series liquid storage tank was simulated by a finite element method and verified by a scaled-down experiment. The structural flexibility of the tank and the liquid-structure coupling characteristics between the liquid and tank wall were considered in the research. A multimass-block and spring model was employed to be equivalent to the longitudinal vibration of the liquid in the storage tank. The relationships between the connection springs and the elements of the stiffness matrix were explicitly deduced. The seismic response analysis of a four-stage series liquid tank was carried out, and the acceleration response, the stress response of the tank, and the vertical vibration of the liquid were obtained. The experimental results are in good agreement with the simulation results, which verifies the effectiveness of the modeling method in this paper.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Modeling Research and Test Verification of the Seismic Response of a Multistage Series Liquid Tank

Yao

Meng

Chu

et al. 2021

Shock and Vibration

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“…With the development of economy and society, more and more liquid storage tanks are built in seismically active areas, in extreme cases, these areas may also belong to strong wind areas, which leads to the threat of wind and earthquake to large-scale liquid storage tanks in the whole life cycle. Moreover, earthquake and wind-induced damage cases of liquid storage tanks are very common [1][2][3], two cases corresponding to earthquake and wind are shown in Figure 1. The destruction of the liquid storage tank not only involves the structure itself, but it will also cause huge economic losses, environmental pollution, fire, and so on, and even threaten people's safety.…”

Section: Introductionmentioning

confidence: 99%

“…The destruction of the liquid storage tank not only involves the structure itself, but it will also cause huge economic losses, environmental pollution, fire, and so on, and even threaten people's safety. Dynamic responses of liquid storage tanks during earthquakes involves shell-liquid interaction, Rawat et al [3] used a coupled acoustic-structural (CAS) approach in the FEM for the analysis of the tanks with rigid and flexible walls with varying parameters. Kotrasov et al [4] simulated the interaction between structure and liquid on the contact surface based on the bidirectional fluid-solid coupling technique and studied the dynamic responses of liquid storage tanks by finite element method.…”

Section: Introductionmentioning

confidence: 99%

“…In view of the structural dynamic response under the combined action of wind and earthquake, Hong and Gu [19] found that for high-flexible structures whose horizontal loads are controlled by wind load, the combined total loads after considering wind and earthquake loads may be more disadvantageous than those when considering wind loads in seismic design. Ke et al [20] obtained Dynamic responses of liquid storage tanks during earthquakes involves shell-liquid interaction, Rawat et al [3] used a coupled acoustic-structural (CAS) approach in the FEM for the analysis of the tanks with rigid and flexible walls with varying parameters. Kotrasov et al [4] simulated the interaction between structure and liquid on the contact surface based on the bidirectional fluid-solid coupling technique and studied the dynamic responses of liquid storage tanks by finite element method.…”

Section: Introductionmentioning

confidence: 99%

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

2019

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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.

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Development, verification, and validation of comprehensive acoustic fluid‐structure interaction capabilities in an open‐source computational platform

Dhulipala

Bolisetti

Munday

et al. 2022

Earthq Engng Struct Dyn

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The acoustic fluid-structure interaction (FSI) formulation is a practical numerical approach for the seismic analysis of fluid-filled tanks. However, there are no verification and validation studies reported in the literature that demonstrate the ability of an acoustic FSI numerical model to predict responses important to structural and mechanical design for intense translational and rotational earthquake inputs. Herein, an acoustic FSI formulation is implemented in the opensource Multiphysics Object-Oriented Simulation Environment (MOOSE), and is formally verified and validated using analytical solutions and code-to-code verification, and experimental data, respectively. The analytical solutions are for small amplitude, unidirectional seismic inputs. The code-to-code verification utilizes a previously verified and validated Arbitrary Lagrangian-Eulerian (ALE) numerical model in the commercial finite element code LS-DYNA. The validation studies utilize a comprehensive data set assembled from results of 3D earthquake-simulator tests of a fluid-filled vessel. The acoustic numerical model in MOOSE is verified and validated for hydrodynamic pressures and support reactions except for cases that involve significant convective response. For small amplitude inputs, numerically predicted wave heights match those of the analytical solutions. The numerical model is not verified and validated for wave height calculations under intense 3D seismic inputs. The run times for the acoustic FSI simulations in MOOSE are an order of magnitude, or more, shorter than for the corresponding ALE simulations in LS-DYNA. The utility of the MOOSE acoustic FSI implementation is demonstrated by seismic analysis of a building equipped with a fluid-filled, advanced nuclear reactor.

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Numerical study of base-isolated cylindrical liquid storage tanks using coupled acoustic-structural approach

Cited by 41 publications

References 52 publications

Modeling Research and Test Verification of the Seismic Response of a Multistage Series Liquid Tank

Modeling Research and Test Verification of the Seismic Response of a Multistage Series Liquid Tank

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

Development, verification, and validation of comprehensive acoustic fluid‐structure interaction capabilities in an open‐source computational platform

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