Virtual Marine Arsenal

BOAT3D estimates the forces on a hard-chine planing boat using an added-mass analytical approach and solves for the predicted trajectory of motion of the boat in waves. For a given specification the program estimates the forward boat speed, trim angle, height of CG relative to sea level, and horizontal pressure and skin friction resistance forces, as well as horizontal and vertical accelerations and first and second time derivatives of trim.

Fredyn simulates the dynamic behaviour of a steered ship subjected to waves and wind. All six degrees of freedom are computed in the time domain, where the motions can be large up to the point of capsize.

Integrated Hydrodynamics Design Environment (IHDE) is a tool which developed by NSWCCD to execute analyses of alternatives for dozens of ship concept options quickly with reasonable accuracy by combined resistance and seakeeping predictions. IHDE is available for use on US Government projects only.

Maxsurf Motions module for hydrodynamic and seakeeping analysis provides calculation of vessel response and seakeeping characteristics in a variety of sea states for many types of designs created with Maxsurf Modeler.

Octopus-Office is a hydrodynamic analysis program for the calculation of seakeeping characteristics of ships and other floating structures, with or without forward speed.

PDStrip (Public Domain Strip) computes the seakeeping of ships and other floating bodies according to the strip method. Responses in regular waves are given as response amplitude operators.

PDStrip has been written in Fortran 90/95. It can handle unsymmetrical bodies including heeled ships. Forces on fins or sails can be taken into account.

Powersea predicts the motion of a planing boat in calm water, regular or irregular seas. With specified forward velocity or thrust and the shape of the waves or wave spectrum it calculates the hull’s motion including surge, heave and pitch displacements, velocities and accelerations.

The Ship Motions is a program for predicting regular wave responses and statistical information from an initial hull geometry. The motion can be calculated with five degrees of freedom: heave, sway, roll, yaw and pitch.

ShipmoPC is a strip theory-based, frequency domain seakeeping code capable of computing the six degrees-of-freedom motions of a monohull with forward speeds in regular as well as irregular seas of arbitrary headings. It permits the user to specify any combination of the following appendages: bilge keels, skegs, fin stabilizers, anti-rolling tanks propeller shaft brackets and rudders.

VisualSMP is a suite of tools used in the prediction and analysis of a ship's sea-keeping and loads characteristics.