2.1 COUPLE v2.1

Table of Contents

COUPLE v2.1.1

14 May 2024

Features and changes:

  • Plots that depend on entities that no longer exist in the project, are now automatically removed while warning the user.
  • When creating variants by dropping models onto the design area, these variants are named after the dropped model.
  • Easier renaming of variation studies and variants.
  • Analysis: the user is now notified through toasts whenever errors get added to the notification center.
  • CTRL+S for saving now also works from the analysis window.
  • Studies section now claims more space when the library is opened.



  • Fixed some preference inputs that were not active in previous versions.
  • Fixed an issue that prevented graph pages from persisting in the project when starting from a new project.
  • When saving changes to the license manager, COUPLE restarts instead of closing.


1 May 2024

New features:

Variation studies

On the bottom of the design area, you now find a pop-out panel called Studies. Here, you can set up variation studies, which allow to change the model in one or more components/links/loads, and as such create degrees of variation to your assembly. This offers a far more modular way to exchange components, and study the effect of changing for instance bushing stiffnesses, receiver models and also load cases. The states of each
variation study are shown in Analyze, and can be filtered on to easily navigate through dozens of potential designs.

The design area tabs, previously called Variants, have now been renamed to Assemblies. We suggest to use the new variation studies feature to control different models within a similar assembly configuration, and use tabs only for assemblies with different configurations (e.g. two-stage or three-stage assembly).


Improved Punch file (PCH/BDF/ECD) reader

  • Increased flexibility in reading different PCH formats.
  • Ability to configure units.
  • Improved channel parsing & grouping, supporting typical formats for the subcase IDs.
  • Ability to add BDF files, providing additional meta-data to aid in creating the right channels and interfaces.
  • User feedback during import.


Unit conversions

  • Ability to specify a unit system. Datasets with different units will be converted to comply with the set unit system in the Preferences.
  • Ability to choose which time-derivatives are used in presenting motion and FRFs, i.e. displacements / velocities / accelerations (over force).


Other features & changes

  • It is now possible to store Synthetic stiffness models in a library.
  • Revamp of analysis: results are now grouped by Assembly.
  • Reworked the interface mapper for better understandability.
  • Reworked the property inspector to show contained models.
  • Reworked the presentation of DoFs in inspector.
  • Add Variation Study tokens to the plot labels.
  • Simplified the process of deleting items on the design area.
  • Increased the width of scroll bars.
  • Double clicking an item on the design area now opens it in the model library.
  • Improved context menus in the Design Area.
  • Warn about unmapped/partially mapped models in property inspector.
  • More flexibility in parsing units when importing Excel datasets (e.g. for mount stiffness).


Bug fixes

  • Fixed an issue where the legend in Analysis doesn’t update when renaming an assembly in Design Area.
  • Fixed an issue where DoF settings behaved strangely.
  • Fixed an issue where the Y-value of the datacursor in graphs is incorrect.

    Contact us for more VIBES

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