Seismic response analysis of cylindrical tanks with initial irregularities on side walls

Conference · Fri Jun 01 04:00:00 EDT 1984 · Am. Soc. Mech. Eng., (Pap.); (United States)

OSTI ID:6311966

Zui, H; Shinke, T

The objective of this paper is to report the findings of the study on the effects of initial irregularities on the seismic response of cylindrical tanks. Such as the out-of-roundness induces circumferential hydrodynamic pressure components of high order modes, which are neglected in current design assumptions. Seismic response formulas for cylindrical tanks with arbitrary initial irregularities have been derived from Lagrange's kinematic equation taking into account natural frequencies, vibrational modes and the hydrodynamic pressure. The hydrodynamic pressure in an irregular tank is evaluated by using velocity potential function. Natural frequency analysis is done by means of the transfer matrix method taking into consideration the initial hoop stress. The effect of aspect ratio H/D (H: liquid height and D: tank diameter) and shape of initial irregularities are further examined by numerical calculations.

• Research Organization: Kobe Steel, Ltd., Amagasaki-shi Hyogo-ken
• OSTI ID: 6311966
• Report Number(s): CONF-840647-
• Conference Information: Journal Name: Am. Soc. Mech. Eng., (Pap.); (United States) Journal Volume: 84-PVP-70
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420205* -- Engineering-- Transport & Storage Facilities-- (1980-)
CALCULATION METHODS
CONFIGURATION
CONTAINERS
CYLINDRICAL CONFIGURATION
DESIGN
DIFFERENTIAL EQUATIONS
DIMENSIONS
EQUATIONS
FLUID MECHANICS
FLUIDS
FREQUENCY ANALYSIS
HYDRODYNAMICS
LAGRANGE EQUATIONS
LIQUIDS
MECHANICAL VIBRATIONS
MECHANICS
PARTIAL DIFFERENTIAL EQUATIONS
PRESSURE EFFECTS
SEISMIC EFFECTS
STRESSES
TANKS
TRANSFER MATRIX METHOD
WALLS