Sloshing analysis of rectangular tanks with a submerged structure by using small-amplitude water wave theory
✍ Scribed by Choun, Young-Sun; Yun, Chung-Bang
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 270 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0098-8847
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✦ Synopsis
A new sloshing analysis method for rectangular tank systems with a submerged structure are proposed by using the velocity potential and the linear water wave theory. The velocity potential functions are obtained by decomposing the surface wave into a wall-induced wave, re#ected and transmitted waves, and a scattered wave.
A simpli"ed method using a response spectrum for zero damping is also proposed. The results of the simpli"ed method are in good agreement with those of the analytical method.
The sloshing response of the #uid-structure system is found to be very sensitive to the characteristics of the ground motion and the con"guration of the system. Under typical earthquakes, the submerged structure shows a tendency to decrease sloshing amplitude, hydrodynamic pressure, and base shear, while it shows a tendency to increase the overturning moment. For the ground excitation dominated by low-frequency contents, the sloshing response increases signi"cantly and the contribution of the higher sloshing modes increases.