Enter the forces and moments acting on the nozzle or attachment. The loads are obtained from the restraint summary of CAESAR II output and/or other calculations. A stress summation is performed and stress intensities are checked based on the different load cases.
The type of loads and the available load sets depend on:
-
The Convention System selection (WRC 107 or Global).
-
The Analysis Type selection on the Design tab (WRC 107 or FEA).
Load Sets
When WRC 107 is selected for Analysis Type, you can enter values in the following load sets:
-
Sustained Loads - (SUS) Primary loads, typically weight + pressure + forces.
-
Expansion Loads - (EXP) Secondary thermal expansion loads.
-
Occasional Loads - (OCC) Irregularly occurring loads such as wind loads, seismic loads, and water hammer.
When FEA is selected for Analysis Type, you can enter values in the following load sets:
-
Sustained Loads - Primary loads, typically weight + pressure + forces.
-
Operating Loads - Loads that occur during operation of the nozzle or attachment.
-
Occasional Loads - Irregularly occurring loads such as wind loads, seismic loads, and water hammer.
The software plots one set of loads at a time and only that set can have values.
For example, to calculate Expansion Loads, values for Sustained Loads and Occasional Loads must be cleared.
Types of Loads
When WRC 107 is selected for Convention System, the following forces and moments are entered:
When Global is selected for Convention System, forces and moments are entered as X, Y, and Z vector components with respect to the global coordinate system: Global Force Fx, Global Force Fy, Global Force Fz, Global Moment Mx, Global Moment My, and Global Moment Mz.