Open Access Open Access  Restricted Access Subscription Access

RANDOM VIBRATION ANALYSIS OF INTZE WATER TANK WITH FLUID-STRUCTURE-INTERACTION – A REVIEW

Rahul Mishra, Rashmi Sakalle

Abstract


Pre-stressed (Random) vibration analysis due to wind and seismic load in different filling condition of an elevated intze water tank fluid system has been studied using finite element method. In present work the pre-stress effect of seismic load on the free vibration of intze water tank up to 10th mode shape is compared with the pre-stress effect of wind load on free vibration of intze water tank fluid system in different filling condition. It is seen in the present work that the difference in pre-stress effect on frequencies of free vibration in intze water tank is very low or it can be negligible for different loading condition. The static analysis of tank due to seismic load and wind load of an intze type water tank fluid system in different filling condition are also studied using finite analysis. Stresses and deflection in static analysis due to seismic load and wind load and also compare with each other. The maximum stresses and deflections in all cases in present study are calculated.

The analysis has been done for different loading condition in different filling condition of tank. The analysis is performing using ANSYS -14.5 MECHANICAL APDL software, in which Solid 187 element is used for discretizing tank & Fluid 30 element is used for discretizing fluid system. To validate the present work frequencies of free vibration is calculated and compare with the previous study (transient and free vibration analysis of elevated intze water tank fluid soil system). The results obtained are same calculated previously by the other author. After validation the pre-stress (random) vibration analysis is done and results obtained from this research work are presented in table form as well as in figures form and comparison of results in graphical form also. Resonance condition for vibration analysis is also discussed.

Full Text:

PDF

References


Moslemi M., Kianoush M. R., Pogorzelski W. 2011. Seismic response of liquid-filled elevated tanks. Engineering Structures. 33: 2074-2084.

Neeraj tiwari, M. S.Hora 2015, Transient analysis of elevated intze water-tank-fluid-soil system. ARPN Journal of Engineering and Applied Sciences VOL. 10, NO. 2.

Pedro A. et. al. (2008) Failure analysis and remedial measures applied to a RC water tank. Engineering Failure Analysis 16 (2009) 1674–1685

R. Livaoglu et al. 2006 Simplified seismic analysis procedures for elevated tanks considering fluid–structure–soil interaction. Journal of Fluids and Structures 22 (2006) 421–439.

R. Livaoglu et al 2007 Effect of foundation embedment on seismic behavior of elevated tanks considering fluid–structure-soil interaction. Soil Dynamics and Earthquake Engineering 27 (2007) 855–863

Resheidat RM, Sunna H. 1986. Behavior of elevated storage tanks during earthquakes. In: Proceedings of the 3rd US National Conference on Earthquake Engineering. pp. 2143–54.

Shekari M.R. et al. 2008 A coupled BE–FE study for evaluation of seismically isolated cylindrical liquid storage tanks considering fluid–structure interaction. Journal of Fluids and Structures 25 (2009) 567–585

Stewart PJ, Seed RB, Fenves GL. 1999. Seismic soilstructure interaction in buildings. II: empirical findings. J Geotechn Geoenviron Eng. 125(1): 38-48.

Xiong Jiangao et al. (1992) A modified lumped parametric model for nonlinear soil-structure interaction analysis. Soil dynamics and earthquake engineering 12 (1993) 273-282.


Refbacks

  • There are currently no refbacks.