MOSES 2024 (24.00.00.722)

Changes: All Applications

Updates to Sample Files
The following sample files have been updated/added to MOSES in this release:

- hdesk/runs/tests/install/man_launch.cif: The geometry has been altered to allow for better definition of the launch legs. There are a number of changes to this file and its associated data file to support this.
- hdesk\runs\tests\conn\winch.cif: Changed to metric units and added a second winch assembly.
- hdesk\runs\samples\wind_turbine\Hywind_AD.cif: This new sample is a model of the Hywind spar coupled with the NREL 5MW reference wind turbine. The sample demonstrates how to use the integrated AeroDyn solver (from OpenFAST) within a MOSES time domain analysis to determine the motions due to the coupled hydrodynamic and aerodynamic loading.
- hdesk\runs\samples\verify\pipelay.cif: Fixed a dimension statement and improved formatting.
- hdesk\runs\samples\mooring\winch.cif: Added post processing of connector length and forces.
- hdesk\runs\samples\mooring\int_turret.cif: Added statistics when post processing connector forces and improved formatting.
- hdesk\runs\samples\install\up_lowr.cif: Added more detailed comments and density to sling connector classes.
- hdesk\runs\samples\install\two_blk.cif: Improved load case generation and selection. The SACS tools are now used for post processing the structural analysis.
- hdesk\runs\samples\how_to\sidelift.cif: The SACS tools are now used for post processing the structural analysis.
- desk\runs\samples\data\tow_jacket.dat: New holes and tube tanks have been added to this model.
- hdesk\b_run\b_run.cif: Allowable stress option added to the MOMENT command when producing longitudinal strength results.
- Sample Designs\Examples\VolturnUS: This new sample demonstrates the Modeler COM interface. Parametric models of the VolturnUS-S are generated through a Python script or a macro in Microsoft Excel.

Changes: MOSES Executive and the MOSES Solver

900943: Quadratic Transfer Function (QTF) Export
As floating wind turbines and other systems are installed in relatively shallow water, more accurate drift modeling methodologies become of increasing importance. MOSES now has the option to compute the quadratic transfer function (QTF) for drift forces. This takes place in the HYDRODYNAMICS menu as an option added to the G_PRESSURE command:

G_PRESSURE -MD_TYPE QTF

Where -MD_TYPE has the usual range of options plus an additional selection, QTF. If QTF is specified here, MOSES will use the standard near field drift computation method, supplementing the usual calculations with the difference frequency drift terms for the super and sub-diagonals of the full drift QTF matrix. This computation will be extended in a future release to include the entire matrix.

MOSES can emit this QTF matrix in the WAMIT file format. This is accomplished with a new option on the
EMIT_WAMIT macro as follows:

EMIT_WAMIT -QTF YES/NO

Where -QTF can be NO (default) or YES. If YES is chosen, then MOSES will emit a WAMIT .12 file to the output directory. This enables the QTF to be read by other programs with a suitable WAMIT file interface.

This feature is available with all MOSES and OpenWindPower licenses and requires an active SELECT Entitlement

Bug fixes and minor changes
- 900307: When modeling more than one winch off a single drum using a winch assembly the actual speed of the winch was the defined speed multiplied by the number of lines present in the assembly. This behaviour is incorrect. This issue has been fixed by ensuring winches can only have one connector attached. Warnings are issued if this requirement is not met.
- 900379: Fixed an issue where the second node of a part connector created with PCONNECT was deleted if it was immediately followed by a part connector with a beam.
- 900391: In some cases flow was reported at vent valves and flood valves when no flow should be present. This issue has been fixed.
- 900844: An error found in the horizontal force on one of the two launch legs during a LAUNCH analysis has now been fixed.
- 900925: Extraneous characters were appearing in NORSOK joint check reports. This issue has been resolved.
- 914694: Discrepancies between the drag force calculation of segmented and non-segmented tubes with the same properties have been fixed.
- 1074397: Users will now see a detailed warning message if nodes are missing from a beam definition.
- 1103494: Inconsistencies found in some results while using the CONVOLUTION option for connectors have been fixed.
- 1153143: Winches attached to bottom catenaries controlled with &CONNECTOR -L_DYNAMIC were not working. This issue has been fixed.
- 1172906: A dialog informing the user of a failure when writing Post member results stopped MOSES from running. This dialog has been removed and replaced with a detailed message in the MOSES log file.
- 1177160: Fixed an issue where the EXP_ALOAD command was writing a * character to SACS cards when using the &EMIT-SACS option.
- 1180190: A discrepancy between input and output units when exporting to the CSF with the -GAP option has been fixed.
- 1186578: Multiple warnings were printed to the log file when SSOLVE was run for the second time in the same analysis. The warnings were due to MOSES automatically applying water springs with the same name as those used in the previous SSOLVE. These warnings have been removed.
- 1195859: The MOSES Executive Model Properties window now displays the units for ring spacing.
- 1201722: The Common Solution File (CSF) was not accepting models with beam ring (transverse) stiffeners. This issue has been fixed.
- 1201749: The CSF settings dialog box was not updating the Joint Can settings. This issue has been fixed.
- 1207456: RAO results produced with generalized degrees of freedom were incorrect. This issue has been resolved.
- 1209890: If a TDOM command is issued and the body/part has a hydrodynamic database, but does not have RAOS, a message will be printed to the log file informing the user that radiation and Coriolis forces will not be included.
- 1224660: The ML_PROP macro has been updated to handle unit conversions.
- 1239975: Microsoft Edge is now supported for viewing command specific help documentation via the F1 key.
- 1239963: Users will now see a warning message if zero elements are exported to the Common Solution File (CSF).
- 1259156: The TIP-HOOK report has been updated to show accurate tip and hook locations in a time domain analysis.
- 1260779: The POST -ELEMENT selection didn’t export un-selected geometry to Postvue. This issue has been fixed.
- 1267768: Some changes have been made to the headers in the Righting Arm Results table. Column headings 'Heeling Arm' and ‘Heeling Arm Area’ have been updated to 'Wind Healing Arm' and ‘Wind Arm Area’.
- 1269262: The OpenFAST auto import tool did not include the -ELEV_NAME option to define the name of the wave elevation file. This issue has been fixed.
- 1276378: The SACS Joint Can crushing check is now available from MOSES via the CSF.
- 1277771: The CSF POST Restraint Reaction Report now includes element and class information as well listing all restraint reactions. Previously summed reactions at each restrained joint were shown.
- 1279599: MOSES now provides a detailed explanation on why some errors occurred while running commands that interact with the CSF. These new messages will appear in abbreviated form in the log window and in detailed form in the log file.
- 1282364: The MOSES Executive model view now respects the image type setting on &PICTURE -RENDER when the command is issued from the input window.
- 1295506: A new option, -FILE, has been added to the EMIT_WAMIT macro. This allows users to specify a file name for all results produced by EMIT_WAMIT instead of the default command input file name.
- 1324281: MOSES can now position Jackets at a distance XB from the bow of the cargo barge as specified in the ASSEMBLY LLEG command.
- 1326828: A crash was detected in Joint Can when setting the yield stress limit. This issue has been fixed.
- 1338434: Documentation on the TOW_AUTO macro has been updated

Changes: MOSES Modeler

COM interface Automation
Many additions have been made to the Modeler COM Automation interface, please refer to the ModelerAutomation.chm file installed with the application documentation for full details. Some of these additions include:

- Import and export of additional mesh formats including OBJ, OFF, and WAMIT
- Surface Meshing with greater control over mesh parameters
- Mesh repair
- Direct manipulation of NURB surface control point locations
- NURB surface bonding

Bug fixes and minor changes
- 898244: A problem with the rendered display of surfaces in certain specific models containing trimmed surfaces has been fixed.
- 900955, 1044549: The CM2 meshing library has been updated.
- 900960: Right-click selection and behavior in the Assembly pane has been improved.
- 901069: Marker sorting when fitting a surface edge to the markers had been improved.
- 901105: A bug which deleted more than the selected surfaces when pressing the Delete key has been fixed
- 901115: A bug which prevented bonded edges from being used to create a structural plate under certain circumstances has been fixed.
- 901135: A bug in the Save As command when the model had structural components has been fixed. The bug did not create a new version of the .wsd file to go with the .msd file.
- 901139: Improperly drawn scroll bars in the Structure Data table window have been fixed.
- 959965: A problem with MOSES BEAM objects created from Curves whereby the beam nodes were not correctly exported has been fixed.
- 985477: A bug which prevented selection of contours on surfaces created by extrusion has been fixed.
- 1167539: A crash when opening a model file which could occur under certain specific conditions has been fixed.
- 1177408, 1185333, 1186173: 1186174: Optimize of some of the mesh manipulation algorithms has resulted in considerable improvements in performance when working with models containing large meshes.
- 1211093, 1271669: Several improvements have been made to the Mesh from Surfaces dialog.
- 1226477: A crash which could occur under certain circumstances when creating a Mesh from Planar Markers has been fixed.
- 1265952: A problem which could potentially cause a crash for models with complex bonded surfaces has been fixed.
- 1266108: A new automation sample using python, VolturnUS, has been added to the Sample Designs/Examples folder.
- 1266127: Several new features have been added to the COM automation interface, these include NURB Surface bonding and Mesh repair and Mesh generation from a selection of NURB surfaces.
- 1269091: A problem which under certain circumstances cause the orientation of a Mesh generated from a NURB Surface to had its orientation opposite to that of the Surface has been fixed.
- 1275911: A problem due to a section library containing sections of a certain shape which would subsequently cause Modeler to crash when opening a model containing stingers using this section has been fixed.
- 1286473: A crash on exit, which could occur under some circumstances when terminating when called from a COM automation scrip has been fixed.
- 1291605: False color rendering showing curvature has been fixed. This was broken due the addition of Zebra mapping in an earlier version.
- 1321615: A problem which occurred with models containing surfaces with customized surface parametric spacing has been fixed. The problem caused Motions to crash when using these models.
- 1322887: The Save As feature for tables, no longer includes any hidden columns in the saved file.
- 1322949: A problem in Windows 11 which meant that toggle menu items did not show their selection state has been fixed. This also means that for some applications a Ribbon interface is available (see Window | Interface menu)