Math Modelling Effects

New advanced math modelling effects

Download video about new modelling effects (246 Mb)

The NTPRO 5000 simulates integration of ship/channel hydrodynamic effects and operational procedures so that simulators can be used not only for traditional maritime training but for number of R&D applications as an effective port /channel /terminal design tool.

Realistic soft grounding simulation

Depth of model grounding is calculated. An ‘Emergency model state’ is established depending on the grounding depth value and type of bottom. Actual forces and moments are calculated.

Lock effect

Ship navigation in locks requires significant skills and special simulation training of pilots. Therefore manoeuvring simulators have to model this phenomenon with the utmost accuracy. Modelling of the effect includes ship dynamics when entering a lock, change of water level and velocity field in lock, and relative size of lock and ship.

Modelling of ship squat in restricted channels

A new sinkage and trim formulation has been developed on the basis of Transas model test data, analysis of available empirical formulas and test measurements from numerous sources.

Modelling of bank and channel effects

Quantification of ship hull effects and channel geometry with short or long banks of various configurations considering ship motion parameters, effects of ship heading, depth to draft ratio, Froude number effects, channel blockage effects and proximity of other ships or solid obstacles.

Effect of mud layers

The effect of influence of mud layers on ship manoeuvrability and propulsion qualities is now calculated in NTPRO. The following parameters are considered: thickness, density and viscosity of each mud layer and level of hull penetration into a mud layer. Instructor can define bottom parameters.

Left (OS1): a vessel passes above mud layer, effect is not applied

Right (OS2): a vessel contacts mud, effect of mud layers is demonstrated (turning radius is reduced).

Parametric effect of waves on ship stability

Occurs when changes in the wave profile vary ship stability parameters, which can create violent rolling in certain circumstances.

Simulation of the parametric roll of a small vessel in following seas

Wave height is 2.14 m. Ship’s Natural Roll Period is 11 sec. Slow Speed condition. Parametric roll rapidly developed when Wave Apparent Period was half the Ship’s Natural Roll Period.

Those are just few examples of the NTPRO 5000 advanced modelling capabilities and new hydrodynamic effects included into the simulator.

Download video about new modelling effects (246 Mb)

Should you have any questions about features listed above, our support team will be happy to assist.