Product(s):	MOSES, MAXSURF
Version(s):	all
Area:	Product information

	MOSES	MAXSURF
Type of design	Used for: Workboats Barges Floating cranes	Used for ships and boats: Workboats Fast Ferries Patrol Defense Offshore supply vessels Yachts Ships Catamarans
Workflow	Command-driven Graphical Modeling Interface in MOSES are the MAXSURF technology.	GUI-based
Analysis types	More advanced analysis: Transportation Launch Upend Lift Floating Wind Turbine Floatover Floaters Pipelining Mooring Global Performance Includes most MAXSURF ship design features.	Simpler analysis, focused on ship design: Hull modeling Strength Seakeeping Stability Weight and Balance Initial Structure Resistance Hydrostatics
Multi/Single body analysis	Multi-body analysis i.e. Ship and floating dock.	Single body analysis.
Stability	Intact and damage. Transverse and Longitudinal stability.	Intact, damage and probabilistic damage. Stability calculated in transverse direction.
Seakeeping	More advanced analysis. For example in Panel method, MOSES can have a different damping matrix for each encounter frequency.	Simpler analysis. For example, in Panel method, the user can only specify one damping matrix that is applied to all frequencies.
Structure	Structural analysis as well as spectral fatigue analysis of topsite and cargo structures. Import structures from SACS. Dedicated SACS technology for code checking.	Multiframe - simple tool suited to sectional models.
Additional features	More advanced analysis.	MAXSURF Resistance MAXSURF VPP

Overlaps: They share components for creating models and stability layouts that are nearly the same. Any hull form that you can create in MAXSURF, you could also create in MOSES.

Example of how MOSES, MAXSURF and SACS can work together:

While this scenario, a crane barge lifting a module on to a turret-moored FPSO, might not be a common offshore operation, it does highlight the interoperability between SACS, MOSES, and MAXSURF. Each body/part in this simulation can be described as follows:

The red FPSO hull was modeled using NURB surfaces in MAXSURF Modeler. The NURB surfaces have been meshed and exported to the MOSES format.
The yellow topsides on the FPSO are SACS structural models that have been converted by MOSES into a MOSES readable format.
The black and orange crane barge is available in the MOSES library.
The grey module suspended from the crane is a structural model created with MOSES.

All of these parts have been joined together using MOSES connectors (slings, bottom catenaries, fenders etc) and then the operation has been simulated with the MOSES Executive.

Differences between MOSES and MAXSURF

See Also