PASS/NOZZLE-FEM 3.5. Program Manual

3.8.1. Horizontal vessel

Table 3.4 shows key features of the base element (shell).

Table 3.4
Fig. 3.26. Horizontal vessel: LCS and fixing conditions
 
Feature Description
Reference points:

A: shell start;

B: shell end;

Local shell coordinate system (LCS):

Axis X: shell transverse axis;

Axis Y: shell transverse axis;

angle θ of nozzle insertion is taken from this axis toward axis X;

Axis Z: shell longitudinal axis.

Orientation in WCS:

Axis Z is located in horizontal plane.

Axis X and Y can be vertical according to the shell options:

Shell constraints (dof):

Points A, B.

All calculations by the finite element method (FEM) fix both ends.

Shell loads:

Inner overpressure.

Outer pressure.

Hydrostatic pressure.

Thermal strains.

 

 

PASS/NOZZLE-FEM 3.5. Program Manual

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