Abstract
Numerical simulation of liquid in partially filled tank of flat bottom and bottom box shape is investigated in the present paper. Previously, dynamic response of flat bottom tank has been carried out numerously, but the dynamic response of bottom box tank remains unclear. Therefor a parametric study on bottom box shape tank is carried out to understand the dynamic response of contained liquid under both harmonic excitation and real earthquake excitation. The efficacy of the present numerical model is verified by comparing the results with the published results. Galerkin’s finite element method is used to derive the modal equations of motion for sloshing. The slosh wave displacement, hydrodynamic pressure distribution and the base shear, are quantified for the bottom box shape tank. According to the dynamic analysis results larger size of bottom box significantly reduces the effective mass of liquid which keeps the container on safer side than the flat bottom container.
| Original language | English |
|---|---|
| Pages (from-to) | 91-100 |
| Number of pages | 10 |
| Journal | International Journal of Dynamics and Control |
| Volume | 8 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1 Mar 2020 |
| Externally published | Yes |
Keywords
- Bottom box shape tank
- Earthquake excitation
- Fundamental sloshing frequency
- Galerkin finite element method
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