A Solution to the Inherent List on Nimitz Class Aircraft Carriers

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structural Analysis for Compartment 8-225-6-V: Inner Longitudinal Bulkhead Plating Perma Ballast® Data PP, erma lb := 200- ft" hernia filb^^- Density of Perma Ballast® Based on 95% Fillable Volume Conversion Fac<strong>to</strong>rs I<strong>to</strong>n := 224ab lb sw 64.4- ft Compartment 8-225-6-V Volume := 281'tft"' Wperma '■= 2271<strong>to</strong>n Density of Seawater Volume of Compartment Weight of Permanent Ballast based off limiting shell calculations Inner Longitudinal Bulkhead (Shaft Alley Bulkhead #4) 14.024# (.343 20 Outer Longitudinal Bulkhead A (Longitudinal Bulkhead #3) ^ 17.85# (.437") FR 230 Transverse Bulkhead 12.75# (.3125") FR 225 Transverse Bulkhead 15.3# (.375" -Stringer #14 Z_c Stringer #11 Ship Motion Fac<strong>to</strong>rs: V:=1.2f Vertical A := 0.7f Athwartship F := 0.4 Fore/Aft Loading on Inner Longitudinal Bulkhead Plating: ^Perma = 5.085x 10^ lb Weight of Perma Ballast® Fv^^VWp^^^ FA -■= AWperma FP ■■= FWpenna FY=:6.356X 10 lb F^ =3.814x 10^ lb Fp = 2.034x 10^ lb Vertical Load (Downward) Athwartship Load (Port) Fore/Aft Load r^j: Fi^=3.814x 10 lb Normal Force 128
Resulting Pressure on Inner Longitudinal Bulkhead Plating: Compartment Dimensions: L:=20ft Ht:=114n Area := L-Ht Area = 190ft^ % 3 lb lb P •= —^ P = 2.007X 10 — P = 13.939— Area ^2 .2 p H := —— H = 31.167ft Equivalent Head Psw 129
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A Solution <strong
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A Solution <strong
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Table of Contents Abstract 3 Acknow
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1.0 Introduction 1.1 Motivation Air
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class. Changes to
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classified into fo
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o Control the KG g
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the intact stabili
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for ships propulsion, respectively.
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combined with the
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1.3.7 Ballast Addition 1.3.7.1 Wate
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2% entrained air (by volume) in <st
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Tank name Tank volume Ballast type
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was successfully performed and <str
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of each tank's location was added,
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2.3 Preliminary Decision-Making Cos
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All further costin
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2.4 Structural Analysis One tank on
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this pressure. This resulted in a r
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2.4.1 Structural Modifications 2.4.
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Main Deck Shell FR 165 - FR 180 Tra
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2.4.1.3 Modifications to</s
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3.1 Final POSSE Results The minimum
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Table 6: Final Cost, Weight Additio
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Corrosion coupons are placed in all
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5.0 Recommendations 1. As can be se
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References [I] Design Data Sheet 07
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1
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Page 89 and 90: structural Analysis for Compartment
Page 91 and 92: Resulting Pressure on Sponson Plati
Page 93 and 94: Calculations to De
Page 95 and 96: Stress Calculations: k = coefficien
Page 99 and 100: FR 165 - FR 180 Transverse Bulkhead
Page 101 and 102: Design of Plating for Surface Ships
Page 105 and 106: Main Deck Shell FR 165 - FR 180 Tra
Page 121 and 122: Stress Calculations: Stiffening k =
Page 123 and 124: Resulting Pressure on Shell Plating
Page 127: Stress Calculations for 227 I<stron
Page 137 and 138: Stress Calculations k = coefficient
Page 139 and 140: Resulting Pressure on Transverse Bu
Page 149 and 150: __ — __ — """ " *c; 1— ai S s
Page 151 and 152: o ON H 00 ^ ^ o > o -o B u H r^ 00
Page 153 and 154: MATERIAL WORK SHEET PERMA BALLAST®
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Page 157 and 158: CO 5t CO 00 en St 0\ CO 5t o © St
Page 159: * CO * * vT 00 * in r4~ vT * cr C/l
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A Solution to the Inherent List on Nimitz Class Aircraft Carriers

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