A Solution to the Inherent List on Nimitz Class Aircraft Carriers

Design of Plating for Surface Ships, lAW General Specs (Section 100)
b := 48in a := 114)n AR := — AR = 0.421
a
^actual :=-34311 Thickness of Plate, HTS
H = 31.167ft Head of Water
K := 1 For AR = 0.421,1 AW with Table I of <strong>the</strong> General Specs (Section 100)
C := 400ft' For HTS, No Set, lAW with Table I of <strong>the</strong> General Specs (Section 100)
b
— < •
K-VH
K-VH-b
t„:„ := — mm"
b = short dimension of <strong>the</strong> panel (inches)
t = thickness of <strong>the</strong> plate (inches)
C = Coefficient that is a function of <strong>the</strong> plating material and <strong>the</strong> location of <strong>the</strong> plating on <strong>the</strong> ship
K = coefficient that depends on <strong>the</strong> aspect ratio (AR) of <strong>the</strong> panel
H = Head of salt water (feet)
^min = 0-67in
The 8th deck inner longitudinal bulkhead (Shaft Alley Bulkhead #4) currently has 4 vertical stiffeners spaced 4 ft apart. The
minimum thickness calculated for this section of plate <strong>to</strong> meet Navy Structural Standards with no set is .67 in. The actual plate
thickness is .343 in. Therefore, <strong>the</strong> 8th deck inner longitudinal bulkhead plating must be stiffened.
t_min »t actual
130