Page 141 - statbility for masters and mates
P. 141
But
Moments of statical stability 129
LL1 ytany ;g1h1 13 ytany
Thevolumeofthewedge 12 y2tanydx Themomentoftheverticalshift 12 y2tanydx 23 ytany
13 y3tan2ydx L
The vertical moment of all such wedges
13 y3 tan2 y dx
O
12 Itan2y
; The moment of the vertical shift 12 I tan2 y
Also
or but
or
B1B2 v 2gh V
V b 2vgh
2vgh The vertical moment of the shift
;V b 12 Itan2y
b I tan2 y
V2
B1B2 BMtan2y `b' 2
Referring to Figure 14.5(a) GZ NR
BR BN
BS SR BN
a cos y b sin y BG sin y BMtanycosy 12 BMtan2ysiny BGsiny BMsiny 12 BMtan2ysiny BGsiny siny BM 12 BMtan2y BG
GZ siny GM 12 BMtan2y
[from`a'and`b']
[foryupto25 ]
