Page 239 - Pressure Vessel Design Manual

Special Designs 217

I
r

- L
E
F F u-
Vessel centerline -
r
Figure 4-5. Dimension and forces for a stiffening ring on the outside of a vessel.

Figure 4-6. Dimension and forces for a stiffening ring on the inside of a vessel.

Table 45
Radial Displacements
Cause Displacement Notes

FR:,B Solve for W1 in terms of F,
Shell Discontinuity force, F w, =-
2Est which is unknown at this time.
Thermal expansion
PR:
Pressure, P W3 = -(l - 0.5~~)
tEs

Axial load, N w4 = (-)- NUS
2dES
FR~, Solve for W5 in terms of F,
Ring Discontinuity force, F w, = (-)-
ArEr which is unknown at this time.
E, [A]
PRm
Pressure, P We =-

Thermal expansion W, = Rmar ATr