Random response analysis performance and functionality improvements

You can now take advantage of the substantially improved nodal results output performance in a random response analysis procedure. This new feature:

• Speeds up the nodal output phase of the random response analysis by 2–500 times
• Reduces wall time of a typical random response analysis by 2–20 times
• Enables using more eigenmodes in a random response procedure and obtaining output for a large number of nodes
• Supports history, field, and printed output

The following functionality is first available in the Abaqus 2022 FD02 (FP.2214) release.

In a random response analysis procedure, the performance is improved substantially in element output and computation of output variables MISES and RMISES in Abaqus/Standard.

Improved element results output performance in the random response analysis procedure:

• Speeds up the element output phase of the random response analysis by 2–70 times
• Reduces wall time of a typical random response analysis by 2–20 times
• Supports history, field, and printed output

Starting from this release, computation of output variables MISES and RMISES in a random response procedure is performed in Abaqus/Standard. You can request computation of von Mises and RMS von Mises stresses at integration nodes, element centroids, element nodes, as well as averaging at nodes. The computed values of von Mises and RMS von Mises stresses are saved in the ODB and SIM databases.