Maxsurf V8i Release 20.01 Notes

The following section describes the changes in Maxsurf 20.01 V8i suite of software. This is a patch to known issues in 20 V8i.

• 32-bit versions will run on Windows XP/Vista/7, and

• 64-bit versions will run on Windows 7 64-bit.

The following fixes and changes that have been made to fix known problems with release 20 V8i. It is highly recommended that you install the updated version of the software.

As of Maxsurf v20.01 our installers now fully support silent installation.

 

Silent installation can be used to allow deployment of Maxsurf suites across multiple machines and enterprise environments easily.

 

In order to use Silent Installation – you must pass the parameter ‘-q’ to the appropriate setup.exe on the command line. In addition, because we do no longer select any suites by default though, you must also specify the suites you’re interested in installing using the SUITE=xxx option.

 

Where xxx can be replaced with MaxsurfSuite, MaxsurfAdvancedSuite or MaxsurfEnterpriseSuite.

 

See the examples below:

 

MaxsurfSetup.exe -q SUITE=MaxsurfSuite

MaxsurfSetup.exe -q SUITE=MaxsurfAdvancedSuite

MaxsurfSetup.exe -q SUITE=MaxsurfEnterpriseSuite

 

You can specify multiple suites at the same time too, just separate the suites you’re interested in with a comma (,).

 

For example the following line would install every Maxsurf suite at once:

 

MaxsurfSetup.exe -q SUITE=MaxsurfSuite,MaxsurfAdvancedSuite,MaxsurfEnterpriseSuite

 

Please note that during normal installation we ask whether the default libraries and report templates should be updated. With a silent install we always install the latest libraries and templates, so if you have custom libraries or templates then you will want to back them up and restore them yourself after installation.

 

These are:

%PUBLIC%\Documents\Maxsurf\MaxsurfXX\WorkshopLibrary.slb

%PUBLIC%\Documents\Maxsurf\MaxsurfXX\Stability Criteria Library.hcr

%PUBLIC%\Documents\Maxsurf\MaxsurfXX\Report Templates\StabilityBooklet.dot

%PUBLIC%\Documents\Maxsurf\MaxsurfXX\Report Templates\HMReportTemplate.dot

 

Where XX should be replaced by the major version number of Maxsurf. e.g. 20

 

As the installation occurs in the background you will not be given any indication of progress of when the installation has fully finished. Please check the task manager to ensure the process has completed or ensure you allow sufficient time.

 

• 6897: Dragging a surface using the Move Surface | Freeform option allowed symmetrical surfaces to be dragged over the centerline when the ctrl key was not down. This has been fixed.

• Importing Rhino models: We have recently found that prior to importing a trimmed-surface rhino model into Maxsurf Modeler it is often very useful to run the ShrinkTrimmedSrf command on all the trimmed surfaces in Rhino. This generally creates a much more robust model and reduces the size of the file.

• 7457: Importing Rhino v5.0 file trimming fail – model specific. Fixed.

Several new tags have been added that may be placed in a MS Word report template to insert tank plan drawings into the report. These are as follows:

<Global-TankPlan>

<Global-TankBodyPlan>

<Global-TankProfile>

 

• 7456: A problem in the “Forces heeling arm” where the vertical centres (mean draft / 2; vert. centre of projected lat. u'water area; and waterline) were always zero has been fixed.

• 7387: Some problems with criteria using the newly added “Velocity Profile” wind heeling arm have been fixed. A warning is now also given if a heeling arm which uses the actual inclined-vessel projected lateral plane windage areas has been selected, but the calculation of these areas has been turned off in the Preferences.

• 7358: An automatic recalculate and update of all loadcases now occurs immediately after changing the “Empty damaged tanks” status. Previously this only occurred when starting an analysis or manually choosing the “Update Loadcase” command.

• 7346: The Sounding pipes must be defined from the top down. Color coding has now been added if an error in the definition has been made.

• 7343: For models without the new definitions of windage and immersed lateral plane area surfaces, errors in the reported windage and immersed areas and vertical centers in the stability results occurred (the areas used for criteria evaluation remained correct, however). These problems have now been fixed.

• 7323: A problem when using both “Simulate fluid movement” and not “Empty damaged tanks” when doing a damaged analysis for an analysis using a loadcase has been fixed. The problem was that the tanks would not damage greater than the volume of fluid specified in the tank. This problem only occurred when both options: “Simulate fluid movement” and not “Empty damaged tanks” were selected.

• 7319: A problem with the animation of Equilibrium analysis results of the vessel in a wave which prevented the wave profile or immersed sections from updating has been fixed.

• 7295: Comparable numbers of sections are now used between Modeler, Stability and Motions when computing vessel hydrostatics; the number of sections used depends on the model/surface precision. Some minor differences are due to the fact that Modeler places sections only over the length of the immersed hull at the DWL whereas Stability places then over the entire length of the model. A problem with Stability indentifying the immersed length for some models with trimmed underwater surfaces has also been fixed.

• 7236: A problem when trying to run a KN analysis via COM (e.g. VBA automation) using a draft range (rather than a displacement range) has been fixed. The problem manifested itself by indicating that no displacements had been set and terminating the analysis.

• 6956: A problem when accessing the Loadcase mass or center of gravity via COM (e.g. VBA automation) after a trimmed or heeled analysis had been completed which caused the tanks’ soundings and ullages to be recalculated for the inclined vessel has been fixed.

• 7290: When opening a design with a NURB surface with a non-uniform knot vector a dialog box was displayed with no message. This has been fixed.

• 7397: Plate contours were sometimes not expanding correctly when plate ran across a surface feature line. This has been improved.

• 7281: For plates on long skinny surfaces, sometimes the expanded contours (eg section/buttock/water lines) were inaccurate on the developed plate in the part view. This has been fixed.

• 6981: Maxsurf structure can now export trimmed surface plates to Rhino file format.

• 7414: A problem when setting heel and trim for the panel method has been rectified. A COS(heel) factor was omitted when calculating the specified trim, this meant that when applying a heel angle, the actual vessel trim was slightly different that that requested (by the COS of the heel angle – thus for small heel the difference in trim was quite small). Also trim and heel results have been added to the Hydrostatics dialog table.

• 7406: KR Barge methods now indicates which data are used for the analysis.

• 7399: Slender body resistance results are now flagged as needing recalculating in the results table if the speed range or other analysis parameters are changed.

We greatly appreciate any bug reports or suggestions you may have. Please report any bugs or anomalies you find through www.bentley.com/serviceticketmanager