CRS MAMBO – Validated simulation tool for manoeuvring & seakeeping optimisation
Conference/JournalMARIN Report 144
Date30 Jun 2025
Requirements regarding minimum power, safe return to port, and navy recommendations, compel naval architects to assess the performance of ships sailing in harsh weather conditions or with limited propulsion and steering.
As part of any assessment, time domain simulations are done to compute the ship motions during typical manoeuvres (such as heading keeping, turning circles, zigzags) in calm water and in waves.
The CRS MAMBO project aims to (re-)develop and validate the MANoeuvring in WAVes (MANWAV) software program, with a focus on software maintainability and sharing across simulation platforms, and the validation of wave drift forces by conducting dedicated model-scale experiments.
As part of any assessment, time domain simulations are done to compute the ship motions during typical manoeuvres (such as heading keeping, turning circles, zigzags) in calm water and in waves.
The CRS MAMBO project aims to (re-)develop and validate the MANoeuvring in WAVes (MANWAV) software program, with a focus on software maintainability and sharing across simulation platforms, and the validation of wave drift forces by conducting dedicated model-scale experiments.
Contact
Ed van Daalen
senior researcher
Redevelopment of MANWAV
MANWAV is based on a ‘3+1 degrees of freedom’ model, with coupled surge/sway/yaw and decoupled roll. In MANWAV, the motions are thought of as a superposition of the motion responses to manoeuvring and second order wave (drift) forces, and first order wave forces.
As the program has been developed over a number of CRS projects, this has resulted in monolithic MATLAB prototype implementation which has prevented CRS members from using MANWAV sub-models on their own simulation platforms.
As the program has been developed over a number of CRS projects, this has resulted in monolithic MATLAB prototype implementation which has prevented CRS members from using MANWAV sub-models on their own simulation platforms.
Model tests were carried out with the 5415M model
Tags
manoeuvring