Relief Loads and Water Hammer/Slug Flow Spectra Analysis - CAESAR II - Help

CAESAR II Users Guide

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CAESAR II
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CAESAR II Version
12

Enter values on the following tabs when Relief Loads (spectrum) or Water Hammer/Slug Flow (spectrum) are selected for Analysis Type in the Dynamic Analysis window.

Spectrum Definitions Tab
Force Sets Tab
Spectrum Load Cases Tab
Static/Dynamic Combinations Tab
Lumped Masses Tab
Snubbers Tab
Control Parameters Tab
Advanced Tab

Relief Loads

This method solves relief valve loading on a piping system through force spectrum analysis. The force-time profile is estimated using relief load synthesis and then converted to a force multiplier (dynamic load factor, or DLF) spectrum. The force is then applied in conjunction with this spectrum.

Water Hammer/Slug Flow

This method solves water hammer or slug problems. It is similar to the force spectrum analysis used for relief valve loadings, except that relief load synthesis is not required. The force-time profile is estimated and then converted to a force multiplier spectrum. This is linked to force sets in the load cases.

Force-time profile estimation methods are shown in the CAESAR II Applications Guide. Steps proceed as described for relief loads.