Maximum Table Frequency - CAESAR II - Help

CAESAR II Users Guide

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English
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CAESAR II
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CAESAR II Version
12

Specifies the maximum frequency in the table to be used to generate the DLF curve. This value is usually no more than 100 Hz and is commonly 40 to 60 Hz for relief valves. For other types of impulse loadings, a larger maximum may be needed.

If piping frequencies greater than this value are found in the system and included in the spectrum analysis, then the spectrum value at the maximum table frequency is used. You can decide which frequencies are important and how high the frequency must go by looking at the solution participation factors and the animated mode shapes. Only the lower frequencies typically contribute to the system displacements, forces, and stresses.