MSS-Marine GNC Toolbox V3.0
This version incorporates a few extra m-files related to
waves and a major re-structuring of the Simulink library marine.mdl, which has
been replaced by marine_gnc.mdl
- wavespec.m --evaluate 8 different wave spectra.
- ww2we.m --conversion from
wave to encounter frequency (vector input-output. Negative encounter
frequencies are allowed.)
--conversion from signif. wave height to average wind speed.
--conversion from average wind speed to signif. wave height.
- rand_phases --generates a vector of random phases
with uniform distribution in [-pi,pi].
Obsolete commands: The function wavespec replaces
pierson.m, mpierson.m, jonswap.m and torset.m These
functions are still available in this version but may not be supported in future
versions of the toolbox.
The new library marine_gnc.mdl is organised in the
-- control blocks for different operations
-- blocks for modelling wind wave and current (no current implemented in
-- examples ready to simulate
-- blocks for generating trajectory references for ship motion control
- Marine System (Basic)
-- elementary blocks to construct models of marine vehicles
-- blocks related to filtering and measurements
-- math operations, unit conversions, etc.
New Simulink blocks in the
Environment / Waves:
- Gaussian random process
--this is to simulate random processes as a sum or sinusoids.
- Encounter Frequency Correction
-- correction for the Waves block to work in the encounter freq. domain.
--conversion from wave to encounter frequency.
- Zig-Zag rudder command
--reference for performing ziz-zag tests in surface ships.
- Rudder/Fin Machinery
- Rudder Forces 4-DOF
- Fin Stabiliser Forces 4-DOF
- Steady State Hydrofoil.