|
Probabilistic damage stability |
|
Probabilistic Damage Stability. The probabilistic damage stability extension developed by DELFTship BV incorporates both the current rules for damage stability as well as the harmonized rules that enter into force on January 1st 2009. Some key features of our probabilistic damage stability extension are: - Fully automatic generation of damages. Zones can be defined by the user or automatically extracted from the tank geometry. Several other options allow for a variety of damage scenarios from coarse to fine. Damages are generated for both sides of the ship simultaneously in a matter of seconds, each side having its own subdivison layout based upon the actual internal geometry of the ship.
- Unlimited amount of damage cases.
- By using the most detailed subdivision scheme all steps and recesses are accounted for, leading to a higher attained index.
- Graphical representation of each damage case clearly showing the damaged compartments, distribution of zones,damage extents etc. The layout of this view can be generated manually or fully automatically ensuring maximum visibility of all compartments.
- Output of results in a summarized report or an extended report. The extended report shows for each damage case a graphical presentation of the damage and the calculated results for each of the three draughts, including the corresponding stability curves.
- Various tools to speed up the calculation such as the option to remove damage cases from the set that do not contribute significantly to the attained index.
|
|
Read more...
|
|
|
Latest release: Version 3.2 
DELFTship™ is a complete design package for application in the marine industry. It is characterised by its ability to create any kind of hullform, high flexibility, low learning curve and visual approach. It can be used for almost any kind of floating object. The basic hullform program is free for all users. The following extensions are currently available for the professional designer: - Critical points extension (downflooding points etc)
- Crosscurves
- Tank modeling and calibration
- Load cases (intact stability)
- Inclined hydrostatics
- Still water longitudinal bending moment and shearforce calculations
- Maximum allowable VCG' calculations for a selected set of stability criteria
DELFTship™ uses subdivision surfaces to model the hull rather than NURB surfaces. Most hull modeling packages use these parametric spline surfaces which can be very tricky to use. Subdivision surfaces offer many advantages over NURB surfaces, such as: - No need for a rectangular control grid divided into rows and columns.
- More freedom in modeling knuckle lines.
- Surfaces can contain holes.
- Even the most complex shapes can be created with just one surface.
- The possibility to insert just one single control point.
All hydrostatic calculations are carried out using surface integrals. This results in a more accurate assessment of hydrostatic properties compared to the more traditional method of integrating cross section areas. 
|
|
|
