Using Adaptive Convergence with Ansys Mechanical — Lesson 5

Ansys Mechanical can solve a variety of complex real-world mechanical problems. But how do you determine the accuracy of the solution? Is there a rule to determine the level of accuracy? In this video, we will answer these questions using adaptive convergence. It helps users discover mesh-independent solutions so the results don’t change noticeably with further mesh refinement. This can help define better mesh controls for future models to ensure numerical accuracy.

Alternate video link.

Video Highlights

1:22 – Definition of Adaptive Convergence

2:08 – Definitions of Relative Accuracy and Relative Error

3:20 – Difference between Adaptive Convergence and Convergence in Solving a Nonlinear Problem

5:06 – Using Large Deflection

6:21 – Using Adaptive Convergence

7:47 – Defining Allowable Change for Adaptive Convergence

8:15 – Defining Refinement Depth

9:04 – Defining Max Refinement Loops

9:25 – Procedure for Adaptive Convergence

10:51 – Using Adaptive Convergence for Stress Results on a Specified Region

11:58 – Definition of Stress Singularities

12:21 – Resolving Stress Singularities for Adaptive Convergence

13:45 – Factors that Influence Analysis Accuracy

Simulation Files

Download the accompanying geometry and archived project file used in the video lesson here. Download Ansys Student for free here.