• PERIODIC MOTION
• PLATE DEFORMATION
• HOOP STRESS IN A CYLINDRICAL SHELL
• STRESS CONCENTRATION DUE TO A CIRCULAR HOLE
• GENERALIZED DEGREES OF FREEDOM
• BEAM RESIZING
• SIMPLE HYDROSTATICS
• STRIP THEORY HYDRODYNAMICS
• THREE DIMENSIONAL DIFFRACTION HYDRODYNAMICS
• WIND AND CURRENT FORCES
• PIPELAYING
• HORIZONTAL OSCILLATION OF A TANKER
• WAMIT TO MOSES COMPARISON

A Verification Document is available where MOSES results are compared with results for the same problem obtained by other means. This document is available as a pdf file which can be viewed with Adobe Acrobat Reader. Hint: Use the zoom tool in Acrobat to better view the equations.

The source of the MOSES results is a set of samples listed below.

PERIODIC MOTION:

There are two periodic motion samples:

• spmass data
• spmass commands
• spmass log
• spmass output
• pend data
• pend commands
• pend log
• pend output

PLATE DEFORMATION:

There are three plate deformation samples:

• plate1 data
• plate1 commands
• plate1 log
• plate1 output
• slice data
• slice commands
• slice log
• slice output
• dice data
• dice commands
• dice log
• dice output

HOOP STRESS:

There are four hoop stress samples:

• b_simple data
• b_simple commands
• b_simple log
• b_simple output
• b_detail data
• b_detail commands
• b_detail log
• b_detail output
• r_simple data
• r_simple commands
• r_simple log
• r_simple output
• r_detail data
• r_detail commands
• r_detail log
• r_detail output

HOLE:

There samples looks at the stress concentration factor of a circular hole in a rectangular plate.

• hole data
• hole commands
• hole log
• hole output

GENERALIZED DEGREES OF FREEDOM:

There are four generalized of freedom samples:

• F_pole data, used by all
• f_pole1 commands
• f_pole1 log
• f_pole1 output
• f_pole2 commands
• f_pole2 log
• f_pole2 output
• f_pole3 commands
• f_pole3 log
• f_pole3 output
• f_pole4 commands
• f_pole4 log
• f_pole4 output

BEAM RESIZING:

There are five beam resize samples:

• resiz1 data
• resiz1 commands
• resiz1 log
• resiz1 output
• resiz2 data
• resiz2 commands
• resiz2 log
• resiz2 output
• resiz3 data
• resiz3 commands
• resiz3 log
• resiz3 output
• resiz4 data
• resiz4 commands
• resiz4 log
• resiz4 output
• resiz5 data
• resiz5 commands
• resiz5 log
• resiz5 output

STRIP THEORY:

This sample is used to verify strip theory calculations. Answers from this analysis are used in a comparison with model test results.

• ndai data
• ndai commands
• ndai log
• ndai output

3D DIFFRACTION THEORY:

This sample performs a Three Dimensional Diffraction analysis in the frequency domain of the semisubmersible Balder. Results of this analysis are used in comparison with model test results.

• 3ddif data
• 3ddif commands
• 3ddif log
• 3ddif output

WIND AND CURRENT FORCES:

This sample performs looks at different ways of computing wind and current forces. It also looks at the damping produced by these "current force" attractors.

• wind_curr data
• wind_curr commands
• wind_curr log
• wind_curr output

PIPELAYING:

This sample computes the configuration of a pipe being layed in 1600 meters of water. Results of this analysis are used in comparison with results from the computer program OFFPIPE.

• pipelay data
• pipelay commands
• pipelay log
• pipelay output

TANKER MOTIONS:

This sample analyzes the horizontal oscillation of a single point moored tanker exposed to head wind and current.

• fishtail data
• fishtail commands
• fishtail log
• fishtail output

WAMIT TO MOSES COMPARISON:

J.Ray McDermott prepared a comparison of the hydrodynamic results computed by WAMIT and MOSES using 3D Diffraction. Five different models were studied: a simple box, a vertical cylinder (SPAR), a general ship form, a TLP and a semisubmersible. Added mass, damping, wave excitation and RAO information is presented. results show favorable agreement between the two programs, click here to view the report (PDF)