MOSES hydrodynamic and marine operations software
Hydrostatics, motions, mooring and installation analysis of floating systems, from loadout and tow to jacket launch, float-over and floating wind. Buy it from an authorized Bentley channel partner that uses it.
- 4editions, from MOSES to MOSES Wind Turbine
- 9capability areas, from strip theory to jacket launch
- 7marine operations, from loadout to subsea installation
- 3of our own floating solar projects used MOSES
Four editions: what each one includes
Each edition includes everything in the one before it. MOSES Wind Turbine adds coupled turbine analysis to MOSES Ultimate.
Swipe the table sideways to compare every edition.
| Capability | MOSES | MOSES Advanced | MOSES Ultimate | MOSES Wind Turbine |
|---|---|---|---|---|
| 3D hull and compartment models | ||||
| Frequency-domain stability and motions | ||||
| Environmental and mooring system forces | ||||
| Connectors such as lifting slings and fenders | ||||
| Static simulation of installation operations | ||||
| Time-domain simulation of multi-body systems | – | |||
| Dynamic behaviour of risers and pipelines | – | |||
| Strength and fatigue of floating structures | – | |||
| Design code verification using SACS | – | |||
| Complex jacket launches | – | – | ||
| Structural deformation effects on vessel response | – | – | ||
| Advanced heavy lift and float-over operations | – | – | ||
| Coupled platform, mooring and turbine analysis with OpenFAST | – | – | – | |
| Choose it for | Stability, motions, mooring and static installation checks | Adds time-domain multi-body, risers and pipelines, strength, fatigue and SACS code checks | Adds jacket launch, structural deformation effects, advanced heavy lift and float-over | MOSES Ultimate plus coupled floating wind turbine analysis |
Edition contents as published by Bentley. Not sure which you need? Tell us your operations and we will recommend one.
Nine capability areas inside MOSES
From building the hull model to the structure's own deformation in waves.
Modelling
GeometryHull and hydrodynamic models from surfaces and point data.
- Meshes from trimmed NURBS surfaces, curves and point data
- Fairing and surface curvature analysis
- Fitting NURBS surfaces and curves to point data
- Parametric transformation to target hydrostatics
- Comparison with target hydrostatics and curve of areas
Connectors
Rigging and mooringEverything that ties bodies together or to the seabed.
- Tension-only, compression-only and custom behaviour
- Lifting, lowering and upending with slings and hooks
- Break or re-rig connectors mid-simulation
- Catenary moorings with buoys or clump weights
- Nonlinear springs, gaps, pins and constraint lines
- Move anchors to reach a target tension
Strip theory
Frequency domainFast motion response for vessels and barges.
- RAOs at the centre of gravity or remote points
- Standard and user-defined spectra
- Statistical multipliers or storm duration
3D diffraction
Frequency domainPanel-method hydrodynamics for complex hulls.
- Automatic hydrodynamic mesh generation
- Nonlinear, slowly varying wave drift forces
Time domain
DynamicsFull-system response over time, with animations.
- Current, irregular waves and wind
- Multiple body motions
- Vortex shedding in wind or water
- Dynamic tank flooding and emptying
- Customisable reports and auto-generated animations
Pipe and rod elements
LinesLarge-deflection dynamics of slender members.
- Anchor lines and moorings
- TLP tendons
- Risers and pipelines
Structural solver
Strength and fatigueCode checks on the floating structure itself.
- Beam and plate strength and fatigue
- Time and frequency domains
- AISC, DNV, ISO and NORSOK
- MOSES versions of SACS Post, Joint Can and Fatigue
- Results in MOSES Postvue
Jacket launch
InstallationLaunching a jacket from its barge.
- Six-degree-of-freedom time-domain launch
- Automated ballasting
Generalised degrees of freedom
Flexible bodiesWhen the structure's own deformation matters.
- Deformation effects on buoyancy
- Effects on frequency response
- Effects on loadout calculations
The MOSES toolset
- MOSES ModelerA 3D environment for building hydrodynamic and structural models.
- MOSES ExecutiveManages simulations: run singly, in batches or across computing resources.
- MOSES SolverComputes hydrostatic, hydrodynamic, inertial and mooring forces.
- MOSES scriptingAutomates models, scenarios, reports and parametric studies.
Loads MOSES accounts for
In frequency-domain and time-domain simulation:
Simulate every stage before it happens offshore
Find stability, clearance, motion and loading problems on the screen, not on the barge.
- LoadoutStructure and vessel behaviour while moving a structure onto its transport vessel.
- TransportationVessel motions, stability, environmental loads and cargo behaviour during the tow.
- Heavy liftsCrane-assisted lifts from a floating vessel, including slings and vessel response.
- Float-oversTopside installation and mating using floating vessels.
- UpendingRotating a structure from horizontal to vertical.
- Jacket launchSix-degree-of-freedom launch of a jacket from its barge.
- Subsea operationsInstallation of pipelines, cables and other subsea equipment.
Which edition? Static installation checks start in MOSES. Time-domain simulation needs Advanced, and complex jacket launches, advanced heavy lifts and float-overs need Ultimate.
From hydrodynamics to code checks, in two Bentley tools
MOSES Advanced and Ultimate share models with SACS, so floating structures can be designed to code without rebuilding them.
- 1
Import the SACS model
MOSES Advanced and Ultimate read your SACS structural model directly.
- 2
Analyse in MOSES
Hydrodynamic, structural and fatigue analysis of the floating structure.
- 3
Check in SACS
Run the design code checks on the floating structure in SACS.
We supply and train SACS, Bentley's offshore structural software, with 1,200+ engineers trained.
About SACSFloating offshore wind, platform to turbine
MOSES Wind Turbine, formerly OpenWindPower Floating Platform, combines MOSES Ultimate with OpenFAST solvers, so the platform, mooring and turbine are analysed together.
What it adds
- Platform, mooring and turbine analysed together
- Hydrodynamic and aerodynamic interaction in 3D
- Waves, wind, current and mechanical loads
- OpenFAST turbine solvers
- Platform stability and dynamic response
- Platform and mooring optimisation
- Checks against international offshore standards
From your first licence to a trained team
- 1
Tell us your operations
The vessels, structures and marine operations you need to analyse.
- 2
We recommend the edition
MOSES, Advanced, Ultimate or Wind Turbine, and nothing you don't need.
- 3
Quote or buy online
We send a quote, or you order through our store and we call to confirm.
- 4
Licence delivered
Your MOSES licence is delivered and your team can start.
- 5
Train your team
Our MOSES course, from engineers who use it on their own projects.
Licensing
- SubscriptionEach MOSES edition is a 12-month subscription with one licence, plus Bentley Keys for expert services and training.
- Larger teamsEnterprise and other licensing options are available for organisations.
- Students and educatorsFree access to Bentley software for academic use, through Bentley Education.
Training from Aryatech
Our 3-day MOSES course takes new users from a hull model through stability, motions and RAOs to a mooring analysis, with a certificate from Aryatech and Bentley.
We sell MOSES, train it and use it
We are offshore engineers as well as a Bentley partner. MOSES is part of our own toolkit on floating structure projects.
- AuthorizedBentley channel partner for MOSES and MOSES Wind Turbine in India and the Middle East
- We use itMOSES was used on all 3 of our floating solar projects in India
- We train ita 3-day MOSES course, from hull modelling to mooring analysis
- SACS toowe supply and train SACS, for the code checks MOSES Advanced and Ultimate hand over
What engineers ask us about MOSES
What is MOSES used for?
Hydrostatic and hydrodynamic analysis of offshore floating systems across oil and gas, renewable energy and marine construction, from jacket and topside transport and installation to floating wind turbines.
What is the difference between MOSES, Advanced and Ultimate?
MOSES covers 3D hull models, frequency-domain stability and motions, mooring forces, connectors and static installation analysis. Advanced adds time-domain multi-body analysis, riser and pipeline dynamics, strength and fatigue, and SACS code checks. Ultimate adds complex jacket launches, structural deformation effects and advanced heavy lift and float-over.
What is MOSES Wind Turbine?
MOSES Wind Turbine, formerly OpenWindPower Floating Platform, combines MOSES Ultimate with OpenFAST solvers for coupled analysis of a floating platform, its mooring and the turbine.
How does MOSES work with SACS?
MOSES Advanced and Ultimate can import a SACS structural model. After hydrodynamic, structural and fatigue analysis in MOSES, SACS runs the design code checks on the floating structure.
Can MOSES simulate jacket launches and float-overs?
Yes. MOSES Ultimate handles complex jacket launches, with six-degree-of-freedom time-domain simulation and automated ballasting, and advanced heavy lift and float-over operations.
Does MOSES analyse mooring and risers?
Yes. MOSES models catenary moorings, nonlinear springs and connectors, and Advanced adds large-deflection dynamics of mooring lines, TLP tendons, risers and pipelines.
Which structural codes does MOSES check against?
The structural solver assesses beam and plate strength and fatigue following AISC, DNV, ISO and NORSOK, with MOSES versions of SACS Post, Joint Can and Fatigue.
Does MOSES do frequency-domain and time-domain analysis?
Yes. Every edition covers frequency-domain stability and motions, through strip theory and 3D diffraction. Advanced and above add time-domain simulation of multi-body systems.
Can MOSES be automated?
Yes. The MOSES scripting language automates model creation, multiple scenarios, reports and parametric studies, and MOSES Executive runs analyses in batches.
How is MOSES licensed?
Each edition is sold by Bentley as a 12-month subscription with one licence. Enterprise options are available, and students and educators can get free academic access.
Can you train our team in MOSES?
Yes. Our 3-day MOSES course covers hull modelling, stability, motions and RAOs, and mooring analysis, with a certificate from Aryatech and Bentley.
Have you used MOSES on your own projects?
Yes. We used MOSES on all three of our floating solar projects in India, including anchoring and mooring design with Stewart Technology Associates (USA).
Need MOSES for your offshore team?
Tell us the operations you analyse and how many engineers need it. We will recommend the edition and send a quote.