The latest release of OrcaFlex 11.6 is OrcaFlex 11.6d.
The new features introduced in OrcaFlex 11.6 can be viewed online:
The documentation can also be downloaded for offline use:
To upgrade to OrcaFlex 11.6d, 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 first released 11.6. 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 11.6 is available in the news section.
Known bugs in version 11.6d
OrcaFlex
- Shadows can be clipped in shaded graphics views, particularly for certain sun directions and for models whose wire frames define edge diameters.
- Since 11.6d, OrcaFlex does not log the node azimuth, node declination and node gamma results of a line if you open the properties report for the general data after calculating statics and before running the simulation. An unexpected program error then occurs when you ask for one of these results.
- In a frequency domain analysis, the wave drift load (2nd order) results of a vessel whose low frequency motion is calculated (3 DOF) include the Lz force, Lx moment and Ly moment components. The wave drift load on such a vessel acts only on its three free degrees of freedom, so these components are never actually computed: the Lz force is reported as identically zero, and the two moments contain spurious values. They have been offered since version 11.6, despite the results being documented as available only for the free degrees of freedom of the vessel; they will no longer be available in a future release.
- The import process for multibody WAMIT data fails to apply the reference origin datum height from each individual vessel type to the corresponding bodies in the multibody group.
- Exporting a video of a custom replay with shaded graphics is slow if the 3D view, or any frame of the replay, uses wire frame graphics.
- Since 11.6a, OrcaFlex does not use the system DLL search order to find a native code external function DLL given by a file name alone, with no folder. If the DLL is not in the folder containing the OrcaFlex file, then OrcaFlex reports that it cannot open the DLL.
- For SHEAR7 version 4.6 and later, the area moment of inertia, \(I\), written to a SHEAR7 data file is wrongly calculated from the whole-line SHEAR7 Young’s modulus, rather than the per-section value. SHEAR7 uses \(I\) only to calculate modal frequencies, and an OrcaFlex modes file normally replaces that calculation. So the bug only affects scenarios where SHEAR7 is run directly and no modes file is used.
- When a wave time history is used and the samples needed to cover the simulation number exactly a power of two, OrcaFlex chooses a window of samples that starts one sample early and stops one sample short of the end of the simulation. Over the final sample interval, the wave is then taken from the start of the window rather than from the data.
- Creating or destroying a minimum bend radius variable data source with the C_CreateObject or C_DestroyObject functions of the OrcaFlex programming interface resets the model and discards its results. In the OrcaFlex user interface, the same change is allowed after statics or a simulation without a reset.
- Reading or writing the degree of freedom data of a calculated constraint through the OrcaFlex programming interface with an invalid index does not report an invalid index error. Instead, the call returns a meaningless value, writes outside the data, or reports an unexpected program error.
- In shaded graphics views, bright pixels from the sky are still sometimes visible underwater, along the horizon.