Examination of the intact stability and the seakeeping behaviour

4.2 Vessel No. 02
4.2 Vessel No. 02
Figure 4.3: Lines plan and lateral areas of Vessel No. 02
Table 4.3: Main dimensions of Vessel No. 02
Main dimensions Value Unit
L pp 292.00 [m]
B 40.00 [m]
T D 12.00 [m]
Containers 6,500 [TEU]
The second analysed vessel has the geometric capacity to carry 6, 500 T EU. Having the main
dimensions according to table 4.3, it belongs to the medium sized Post-Panamax vessels. The
following characteristics of Vessel No. 02 are to be noted:
ˆ The lines of the ship shown in gure 4.3 have a c B value of 0.61 on design draft
ˆ The documented bilge keel area is signicantly smaller than the mean value according to
chapter 3.9.
ˆ The stability in the ballast arrival loading condition is very high resulting in
GM solid = 9.88 m.
ˆ The limiting intact stability criterion (Max. GZ at 25 ◦ ) requires a GM min = 2.12 m.
The calculated transversal accelerations on the bridge and the rolling angles for the three accident
conditions are listed in table 4.4.
Table 4.4: Results of the seakeeping calculation for Vessel No. 02
Accident
[
a
situation t max m/s
2 ] ϕ max [ ◦ ]
Situation 1 7.5 18
Situation 2 7.0 15
Situation 3 11.5 28
The maximum acceleration occurs for accident situation 3. The accelerations for Vessel
No. 02 in situation 1 and 2 are signicant smaller than for Vessel No. 01. The statistical
distribution of the transversal accelerations in this situation is shown in gure 4.4.
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