Orcina news

Here you will find the latest news on the development of OrcaFlex. Alongside our LinkedIn page, it is a valuable source of information about what we are up to!

OrcaFlex 11.1

The latest release of OrcaFlex 11.1 is OrcaFlex 11.1b.

The new features introduced in OrcaFlex 11.1 can be viewed online in the OrcaFlex help file. The OrcaFlex 11.1 help file can also be downloaded:

OrcaFlexHelp.zip

To upgrade to OrcaFlex 11.1b from any previous version, download the install program from your company’s Orcina software download page. A link to this page was sent to your software administration contact when we released 11.1a. If you do not have access to this page, please contact us.

A more in depth discussion of the major new features introduced in OrcaFlex 11.1 is available in the news section.

Known bugs in version 11.1b

OrcaFlex

  • The line feeding payout rate was not taking into account the new ramp start time and ramp finish time data that was added in 11.1a. Instead, the ramp of payout rate would always have occurred between the simulation start time and time 0, this interval always being the build-up period in previous versions of OrcaFlex.
  • In versions 11.1a and 11.1b, seabed friction for line drag chain attachments was mistakenly excluded during static analysis of standard model types. Seabed friction was correctly applied during dynamics, and during static analysis of a restart for drag chains that are present in the parent model.
  • The line expansion factor was not being applied for models with dynamics disabled.

These bugs will be fixed in 11.1c.

OrcaWave

  • A floating point overflow error may have occurred during a full QTF calculation if the model had infinite water depth and contained sufficiently short waves.
  • Performing a calculation that uses intermediate values would erroneously mark the data as having changed since it was last saved.

These bugs will be fixed in 11.1c.

OrcaFlex 11.0

The latest release of OrcaFlex 11.0 is OrcaFlex 11.0g.

The new features introduced in OrcaFlex 11.0 can be viewed online in the OrcaFlex help file. The OrcaFlex 11.0 help file can also be downloaded:

OrcaFlexHelp.zip

To upgrade to OrcaFlex 11.0g from 11.0a or 11.0b, download the following ZIP file:

OrcaFlex-Patch-11.0a-or-11.0b-to-11.0g.zip

and execute the .msp patch file that it contains.

To upgrade to OrcaFlex 11.0g from 11.0c or 11.0d, download the following ZIP file:

OrcaFlex-Patch-11.0c-or-11.0d-to-11.0g.zip

and execute the .msp patch file that it contains.

To upgrade to OrcaFlex 11.0g from 11.0e or 11.0f, download the following ZIP file:

OrcaFlex-Patch-11.0e-or-11.0f-to-11.0g.zip

and execute the .msp patch file that it contains.

To upgrade to OrcaFlex 11.0g from 10.3 or earlier, download the install program from your company’s Orcina software download page. A link to this page was sent to your software administration contact when we released 11.0a. If you do not have access to this page, please contact us.

A more in depth discussion of the major new features introduced in OrcaFlex 11.0 is available in the news section.

Known bugs in version 11.0g

OrcaFlex

  • For models containing a line with a nonlinear stress-strain relationship and an additional bending stiffness, if the solution method had changed from frequency domain to time domain, then running statics would fail with an invalid floating point operation error.
  • OrcaFlex would fail to solve statics, presenting a floating point exception on the statics progress window, when line contact was applied to a stiffener attachment line without torsion included.
  • Turbine models using the specified torque generator control mode with free blade DOFs and very stiff segments at root, could fail to converge once the generator had undergone a large number of rotations. The solver has now been adapted to be more robust to such cases.
  • Rayleigh damping effects were not being included in the connection and total loads on the summary results spreadsheets for vessels and lines.
  • Using the analytic catenary line reset representation for lines with free top ends could have affected the subsequent calculation by changing the effective initial position of the top end. This discrepancy was generally very small and did not usually lead to any noticeable effects. However, in some rare cases this could lead to models converging when run from the GUI, but not the API, or vice versa.

These bugs will be fixed in version 11.1a.

OrcaWave

Bodies with moon pools were handled incorrectly, affecting results for second-order loads. Specifically, the results for water plane area, centre of floatation and water plane moments were incorrect. These quantities are used directly for calculating quadratic loads. Second-order loads were also affected in an indirect way if an extended mesh was used to remove irregular frequency effects (the water plane affects the source formulation in this case). First-order loads are not affected.

This bug will be fixed in version 11.1a.

OrcaFlex 10.3

The latest release of OrcaFlex 10.3 is OrcaFlex 10.3e.

The new features introduced in OrcaFlex 10.3 can be viewed online in the OrcaFlex help file. The OrcaFlex 10.3 help file can also be downloaded:

OrcaFlexHelp.zip

To upgrade to OrcaFlex 10.3e from 10.3a, 10.3b, 10.3c or 10.3d, download the following ZIP file:

OrcaFlex-Patch-10.3a-or-10.3b-or-10.3c-or-10.3d-to-10.3e.zip

and execute the .msp patch file that it contains.

A more in depth discussion of the major new features introduced in 10.3 is available in the news section.

OrcaFlex 10.2

The latest release of OrcaFlex 10.2 is OrcaFlex 10.2d.

The new features introduced in OrcaFlex 10.2 can be viewed online in the OrcaFlex help file. The OrcaFlex 10.2 help file can also be downloaded:

OrcaFlexHelp.zip

To upgrade to OrcaFlex 10.2d from 10.2a, 10.2b or 10.2c, download the following ZIP file and execute the .msp patch file that it contains:

OrcaFlex-Patch-10.2a-or-10.2b-or-10.2c-to-10.2d.zip

A more in depth discussion of the major new features introduced in 10.2 is available in the news section.

OrcaFlex 10.1

The latest release of OrcaFlex 10.1 is OrcaFlex 10.1e.

The new features introduced in OrcaFlex 10.1 can be viewed online in the OrcaFlex help file. The OrcaFlex 10.1 help file can also be downloaded:

OrcaFlexHelp.zip

To upgrade to OrcaFlex 10.1e from 10.1c or 10.1d, download the following ZIP file and execute the .msp patch file that it contains:

OrcaFlex-Patch-10.1c-or-10.1d-to-10.1e.zip

To upgrade to OrcaFlex 10.1e from 10.1a or 10.1b, download the following ZIP file and execute the .msp patch file that it contains:

OrcaFlex-Patch-10.1a-or-10.1b-to-10.1e.zip

A more in depth discussion of the major new features introduced in 10.1 is available on our news page.

OrcaFlex 10.0

The latest release of OrcaFlex 10.0 is OrcaFlex 10.0e.

The new features introduced in OrcaFlex 10.0 can be viewed online in the OrcaFlex help file. The OrcaFlex 10.0 help file can also be downloaded:

OrcaFlexHelp.zip

To upgrade to OrcaFlex 10.0e from 10.0c or 10.0d, download the following ZIP file and execute the .msp patch file that it contains:

OrcaFlex-Patch-10.0c-or-10.0d-to-10.0e.zip

To upgrade to OrcaFlex 10.0e from 10.0a or 10.0b, download the following ZIP file and execute the .msp patch file that it contains:

OrcaFlex-Patch-10.0a-or-10.0b-to-10.0e.zip

A more in depth discussion of the major new features introduced in 10.0 is available on our news page.

OrcaFlex 9.8

The latest release of OrcaFlex 9.8 is OrcaFlex 9.8e.

The new features introduced in OrcaFlex 9.8 can be viewed online in the OrcaFlex help file. The OrcaFlex 9.8 help file can also be downloaded:

OrcaFlexHelp.zip

To upgrade to OrcaFlex 9.8e from 9.8c or 9.8d, download the following ZIP file and execute the .msp patch file that it contains:

OrcaFlex-Patch-9.8c-or-9.8d-to-9.8e.zip

To upgrade to OrcaFlex 9.8e from 9.8a or 9.8b, download the following ZIP file and execute the .msp patch file that it contains:

OrcaFlex-Patch-9.8a-or-9.8b-to-9.8e.zip

A more in depth discussion of the major new features introduced in 9.8 is available on our news page.

OrcaFlex 9.7

The latest release of OrcaFlex 9.7 is OrcaFlex 9.7e.

The new features introduced in OrcaFlex 9.7 can be viewed online in the OrcaFlex help file. The OrcaFlex 9.7 help file can also be downloaded:

OrcaFlexHelp.zip

To upgrade to OrcaFlex 9.7e from 9.7b, 9.7c or 9.7d, download the following ZIP file and execute the .msp patch file that it contains:

OrcaFlex-Patch-9.7b-or-9.7c-or-9.7d-to-9.7e.zip

To upgrade to OrcaFlex 9.7e from 9.7a you must first upgrade to 9.7d, and then apply the patch above. To upgrade to OrcaFlex 9.7d from earlier 9.7 releases, download the following ZIP file and execute the .msp patch file that it contains:

OrcaFlex-Patch-9.7a-or-9.7b-or-9.7c-to-9.7d.zip

A more in depth discussion of the major new features introduced in 9.7 is available on our news page.

OrcaFlex 9.6

The latest release of OrcaFlex 9.6 is OrcaFlex 9.6c.

The new features introduced in OrcaFlex 9.6 can be viewed online in the OrcaFlex help file. The OrcaFlex 9.6 help file can also be downloaded:

OrcaFlexHelp.zip

To upgrade to OrcaFlex 9.6c from 9.6a or 9.6b, download the following ZIP file and execute the .msp patch file that it contains:

OrcaFlex-Patch-9.6a-or-9.6b-to-9.6c.zip

A more in depth discussion of the major new features introduced in 9.6 is available on our news page.

OrcaFlex 9.5

The latest release of OrcaFlex 9.5 is OrcaFlex 9.5d.

The new features introduced in OrcaFlex 9.5 can be viewed online in the OrcaFlex help file. The OrcaFlex 9.5 help file can also be downloaded:

OrcaFlexHelp.zip

To upgrade to OrcaFlex 9.5d from 9.5a, 9.5b or 9.5c, download the following ZIP file and execute the .msp patch file that it contains:

OrcaFlex-Patch-9.5a-or-9.5b-or-9.5c-to-9.5d.zip

A more in depth discussion of the major new features introduced in 9.5 is available on our news page.