Vibration of control of rectangular liquid storage tank

Vibration control of liquid storage tanks for chemicals, water etc. is of great importance during earthquake seismic response considering safety factor. During earthquake, seismic excitations are generated, which can cause damage to the tank as well as loss of life and property. In chemical storage tanks, release of toxic chemicals or liquefied gases from the damaged tanks can lead to disastrous effects. Thus estimation of sloshing frequency of liquid in tank, hydrodynamic pressure on wall and proper analysis of fluid-tank interaction under seismic excitations is required for efficient design of storage tanks. In this present study, the behaviour of 3-D rectangular tank is investigated using ANSYS (Version 12.0) software, subjected to various seismic excitation frequencies, different fill levels in tanks.