At MBM we generate the vessel hull form with tanks and compartments to enable both intact and damaged analysis. The environment is predefined to gain results in many formats.
• Integrated compartment definition.
• Complex tanks in the analysis.
• Linked tanks and compartment analysis.
• Integrated load cases.
• Environment options including: grounding, waveform.
• Standard and customisable stability criteria.
Example of Hull form with some tanks and compartments in place.
Waveform is defined to gain vessel hydrostatics.
The Stability analysis is undertaken with a full set of comprehensive methods.
• Probabilistic damage stability.
• Batch analysis for multiple load and damage cases.
• Upright hydrostatics.
• Large angle stability (GZ / righting lever).
• Equilibrium calculations.
• KN cross curves.
• Limiting KG analysis (maximum VCG).
• Floodable length.
• Longitudinal strength.
• Tank calibration.
• Trim & stability booklet.
• Loading manual.
The motion analysis is developed from a direct integration from a surface model.
|•||Calculation of vessel response amplitude operators.|
|•||Calculation of added resistance response and integration of added resistance for specified sea spectrum.|
|•||Calculation of motion, velocity and acceleration spectra at centre of gravity and specified positions on vessel (absolute and relative motions).|
|•||Integration of significant vessel motions for specified sea spectrum.|
|•||Large number of standard spectra: ITTC/Bretschneider 2 parameter; Bretschneider 1 parameter; JONSWAP; DNV and Peirson Moskowitz.|
|•||Graphical and tabular presentation of all data generated by the analysis.|
|•||Interactive results graphs.|
|•||Hull-form design & optimization.|
|•||Propeller & rudder selection.|
|•||Resistance & propulsion calculation.|
|•||Seakeeping & maneuverability studies.|
|•||Tank test coordination & supervision.|
This can all be supported with 3D visualisation of ship motions in regular or irregular waves.