How Do I Speed Up Motion Analysis in SolidWorks?

In this tutorial, we will explore various techniques to speed up motion analysis in SolidWorks. SolidWorks is a powerful software that allows engineers and designers to create and simulate mechanical systems. Motion analysis is a key feature of SolidWorks that helps users analyze the kinematic and dynamic behavior of their designs.

Why is Motion Analysis Slow?

Before we dive into the optimization techniques, let’s understand why motion analysis can be slow in the first place. There are several factors that can contribute to slow performance:

  • Complexity of the Assembly: Assemblies with a large number of components or complex geometry can significantly impact the performance of motion analysis.
  • Contact Detection: When there are contact interactions between components, SolidWorks needs to calculate these interactions during the simulation, which can be computationally expensive.
  • Motion Study Settings: The settings chosen for the motion study can also affect its performance. If you have selected high accuracy or a large number of frames, it will take more time to compute the results.

Optimization Techniques

To speed up motion analysis in SolidWorks, you can utilize the following techniques:

1. Simplify Geometry

If your assembly has complex geometry that is not crucial for the analysis, consider simplifying it. Remove unnecessary details or replace them with simplified representations like blocks or cylinders. This will reduce computational load and improve performance.

2. Use Lightweight Components

In some cases, you may have components with intricate details that are not vital for motion analysis. Replace these components with lightweight representations using SolidWorks’ Simplified Configurations feature. This will help reduce computational complexity and speed up the analysis.

3. Optimize Contact Interactions

If your assembly involves contact interactions, you can optimize them to improve performance. Use the Interference Detection tool to identify unnecessary or unrealistic contacts and eliminate them. You can also adjust the contact settings for more efficient calculations.

4. Adjust Motion Study Settings

Review the motion study settings and make adjustments according to your requirements. If high accuracy is not necessary, consider reducing it to a level that still provides reliable results but improves performance. Similarly, reducing the number of frames can significantly reduce computational time.

5. Utilize Subassemblies

If your assembly has multiple subassemblies, consider breaking it down into smaller subassemblies. This allows SolidWorks to perform calculations on smaller subsets of the overall assembly, resulting in faster analysis.


In conclusion, optimizing motion analysis in SolidWorks requires a combination of simplifying geometry, using lightweight components, optimizing contact interactions, adjusting motion study settings, and utilizing subassemblies. By implementing these techniques, you can significantly improve the speed of your motion analysis and enhance your overall design workflow.