Examination of the intact stability and the seakeeping behaviour

4.7 Vessel No. 07
ˆ The stability in ballast arrival loading condition is moderately high resulting in a
GM solid = 7.00 m.
ˆ The limiting intact stability criterion (Max. GZ at 25 ◦ ) requires a GM min = 0.90 m.
Compared to Vessel No. 06, the c B value of Vessel No. 07 is slightly larger and the GM min
is slightly smaller. The calculated transversal accelerations on the bridge and the rolling angles
for the three accident conditions are listed in table 4.14.
Table 4.14: Results of the seakeeping calculation for Vessel No. 07
Accident
[
a
situation t max m/s
2 ] ϕ max [ ◦ ]
Situation 1 10.0 29
Situation 2 10.0 24
Situation 3 12.0 33
As for Vessel No. 06 the maximum acceleration occurs for accident situation 3. The accelerations
in situation 1 and 2 are also in the same scope for both vessels. Furthermore the dierences
between the accelerations within their respective accident situations are not as high as for e.g.
Vessel No. 02 or Vessel No. 04. The statistical distribution of the transversal accelerations
in this situation is shown in gure 4.14.
Figure 4.14: Transversal acceleration on the bridge of Vessel No. 07 in accident situation 3
29