scholarly journals NONLINEAR OSCILLATION RESPONSES OF CYLINDRICAL TANK WITH WATER ON SHAKING TABLE

2009 ◽  
Vol 74 (642) ◽  
pp. 1461-1468
Author(s):  
Youichi MINAKAWA
1999 ◽  
Vol 122 (1) ◽  
pp. 96-104 ◽  
Author(s):  
Shigehiko Kaneko ◽  
Yasuo Mizota

An analytical model for describing the effectiveness of a deepwater-type cylindrical tuned liquid damper (TLD) with a submerged net for suppressing horizontal vibration of structures is first proposed. In this study, we performed calculations to estimate the effectiveness of a deepwater-type cylindrical TLD based on a proposed dynamical model and compared with experimental results obtained by shaking table experiments and free oscillation tests. In particular, the effect of hydraulic resistance produced by a submerged net and the liquid depth ratio (the ratio of the liquid depth to the diameter of the cylindrical tank) are examined intensively. In the analysis, employing finite amplitude wave theory and Galerkin method in the case of cylindrical tank, we obtained hydrodynamic forces and the free surface elevations. Then, combining the hydrodynamic forces with the equation of motion of the structure, damped transient responses were calculated. The calculated results thus obtained were compared with the experimental results, by which the validity of the modeling methodology was confirmed. [S0094-9930(00)00101-3]


Author(s):  
Yukihiro Toyoda ◽  
Yasuki Ohtori

Abstract This paper describes the applicability of an open source code “OpenFOAM” on estimating of sloshing wave crest impact pressure acting on a fixed roof of cylindrical tank. Based on the computed results, slosh-induced pressure loads and distribution on the tank roof is presented. A series of large scale tests, which are conducted on the “E-defence” shaking table, has been analyzed. In the shaking table tests, partially water-filled cylindrical tank (diameter/height:3m, water depth:2.3m/1.9m) with the flat fixed roof was subjected to a sinusoidal excitation at the first sloshing resonant frequency. The computer code well simulated the observed waveform with a sharp pressure peak at the time of liquid impact on the tank roof, including appearance of negative pressures in the post impact period, with sufficient accuracy. As for the liquid impact zone of the tank roof, the numerical results indicated good agreement with the observed ones. Consequently, the computer code was capable of predicting the complex nonlinear sloshing behavior with the collision of the liquid surface against the tank roof with an acceptable level of accuracy.


Author(s):  
Yuka MATSUMOTO ◽  
Satoshi YAMADA ◽  
Ken OKADA ◽  
Masatoshi IDE ◽  
Toru TAKEUCHI ◽  
...  

Author(s):  
Xinhai Zhou ◽  
Xuansheng Cheng ◽  
Lei Qi ◽  
Ping Wang ◽  
Shaofeng Chai ◽  
...  

2021 ◽  
Vol 146 ◽  
pp. 106675
Author(s):  
Anastasios Tsiavos ◽  
Anastasios Sextos ◽  
Andreas Stavridis ◽  
Matt Dietz ◽  
Luiza Dihoru ◽  
...  

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