Seismic analysis of a sodium-filled tank

Conference · Sat Dec 01 04:00:00 EST 1990

OSTI ID:5486572

Chen, W W

An analysis is described to determine the seismically-induced hydrodynamic responses such as sloshing natural frequency, sloshing pressure, and impulse pressure for a top-supported sodium-filled cylindrical tank. The vibrational effects of an internally immersed pipe on the fluid responses also are considered. Reaction forces from both low frequency fluid modes and high frequency tank modes are combined to determine the required tank support loads. Results from the analysis of the sodium-filled tank model have been compared with the results using the same three-dimensional (3-D) model with lumped fluid mass at evenly distributed shell nodes. The results from the lumped-mass model gave conservative support loads. The analysis used the ANSYS finite-element computer code. The results of the analyses indicate that no sodium sloshing modes exist that may interact with the shell mode. Both the immersed pipe and the tank shell behave in the rigid frequency range.

• Research Organization: Westinghouse Hanford Co., Richland, WA (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC06-87RL10930
• OSTI ID: 5486572
• Report Number(s): WHC-SA-1011; CONF-910602--66; ON: DE92012200
• Country of Publication: United States
• Language: English

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