Man B&W S50MC-C8-TII - Compensation of 2 Nd Order Vertical External Moments

MAN B&W 17.03
Page 2 of 2
MAN Diesel
198 42 221.5MAN B&W K98MC/MC-C/ME/ME-C, S90MC-C/ME-C,
K90MC-C/ME/ME-C, S80MC/MC-C/ME-C, K80MC-C/ME-C,
S70MC/MC-C/ME-C/ME-GI, L70MC-C/ME-C, S65ME-C/ME-GI,
S60MC/MC-C/ME-C/ME-GI/ME-B, L60MC-C/ME-C,
S50MC/MC-C/ME-B8, S46MC-C/ME-B, S42MC, S/L35MC, S26MC
Fig. 17.03.02: Compensation of 2nd order vertical external moments
178 27 104.1
Moment compensator
Fore end, option: 4 31 213
2 2
Centre line
crankshaft
4 Node
3 Node
Compensating moment
F2C x Lnode
outbalances M2V
M2V
F2C
Node AFT
Lnode
Moment from compensator
M2C reduces M2V
M2C
M2V
3 and 4node vertical hull girder mode
Moment compensator
Aft end, option: 4 31 203
Electrically driven moment compensator
Compensating moment
F
D
x Lnode
outbalances M2V
M2V
Node Aft
L
D
node
F
D
2
2