Page 103 - statbility for masters and mates
P. 103
Simpson's Rules for areas and centroids 91
Volume A 13 CI S1 X 1 1:0 1087:7 100 35372
3 1:025 Volume A 35372 cu. m
Volume B 3044 cu. m Total Volume 38416 cu. m
XY S2 CI Moment S1 Volume A
3260 1:0 3mbelow7mwaterline 1087:7
XY 3 m
KX 7 m
KX XY KY, so KY 4 m
Moments about the keel
Volume
35 372 3044
38 416
KGkeel Moments about keel
4 141 488 0.5 + 1522
143 010
KB Total moment 143 010 3.72 metres Total volume 38 416
0.531 d
Summary
When using Simpson's Rules for ship calculations always use the following procedure
1 Make a sketch using the given information.
2 Insert values into a table as shown in worked examples.
3 Use tabulated summations to ®nally calculate requested values.
