Altair Squeak and Rattle Director 2025.1 Release Notes

Flexible Connection Module

The new SnRModelBuild ribbon provides tools and workflows to convert rigid connections from an NVH model into flexible connections for squeak and rattle assessment. Connections play an important role in squeak and rattle models. There are multiple types of clips and snaps across the model that need to be addressed differently.

Appending Modal Contribution Study

Now, every time you perform a modal contribution study, the pages will be appended to the session instead of being deleted from the previous study. A modal sensitivity study will be available only for the latest modal contribution study conducted.

Sensitivity Analysis Selection in Automatic Report

When creating an automatic report, you can now select which E-lines should be included in the report for sensitivity analysis.

Miscellaneous Enhancements

The middle mouse button now can be used to move between the steps in a workflow to speed up the process.

E-Lines should always be created in the main include. Now, you will receive a warning message if another include is set as current.

In post processing, summary page windows will be synchronized if you change the plots between x, y, z, and mag plots.

Tool Tips have been reintroduced in the workflows.

The following known issues will be addressed in a future release as we continuously improve the performance of the software:

• Post-processing of two loadcases simultaneously is not supported.