General

General

  1. All Categories
  2. Structures - General
  3. Model with many joints fails to converge with many ‘LAG Multiplier not satisfied’ messages. Any suggestions for overcoming this issue.

Model with many joints fails to converge with many ‘LAG Multiplier not satisfied’ messages. Any suggestions for overcoming this issue.

Tagged: 18.2, General, mechanical, structural-mechanics
    • April 5, 2023 at 2:32 pm
      FAQFAQ
      Participant

      Assuming the model is not over constrained (no shared entities between multiple joints), try relaxing the joint tolerance with the command: CNVTOL,JOINT, The default value is 1.e-7. In one customer case, 1e-4 proved to resolve a convergence issue. As with all adjustments to convergence tolerances, be sure to check results carefully.

Featured Articles

Introducing Ansys Electronics Desktop on Ansys Cloud

The Watch & Learn video article provides an overview of cloud computing from Electronics Desktop and details the product licenses and subscriptions to ANSYS Cloud Service that are...

How to Create a Reflector for a Center High-Mounted Stop Lamp (CHMSL)

This video article demonstrates how to create a reflector for a center high-mounted stop lamp. Optical Part design in Ansys SPEOS enables the design and validation of multiple...

Introducing the GEKO Turbulence Model in Ansys Fluent

The GEKO (GEneralized K-Omega) turbulence model offers a flexible, robust, general-purpose approach to RANS turbulence modeling. Introducing 2 videos: Part 1 provides background information on the model and a...

Postprocessing on Ansys EnSight

This video demonstrates exporting data from Fluent in EnSight Case Gold format, and it reviews the basic postprocessing capabilities of EnSight.

© 2024 Copyright ANSYS, Inc. All rights reserved.