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CAD Validation & Meshing with OnScale Solve™

By Kevin Chan 17 December 2020
CAD Meshing

1: Mesh of an engine manifold part

Meshing is a key part of any simulation to allow not only your structure to be accurately represented but to determine the accuracy of your simulated outputs. It is important to understand key areas of the model that require finer meshes to allow for stress gradients for a mechanical analysis to converge for example.

The first step before meshing though is to obtain a suitable CAD file that can be meshed and whilst that sounds simple, not all CAD files are created equally. CAD files can range in complexity in terms of numbers of parts and level of detail .This can often lead to parts overlapping and gaps between ‘mated’ parts in the assembly which will affect if it can be properly meshed.

CAD

2: Overlapping parts in CAD files

OnScale Solve has been developed to overcome these common issues to make your life as simple as possible, allowing you to complete a full simulation without headaches.

CAD Validation Features

CAD

3:CAD Parts that have been repaired

  • Feedback to users on problematic parts (overlaps)
  • Check for closed parts to allow meshing
  • Automatic suppression of ‘bad’ parts 
  • Adjust minor gap between parts

Automatic Meshing Features

4:Refined meshes on loaded surfaces

  • Automatic optimization of mesh cell quality
    – Minimizing skewness and aspect ratio
  • Automatic mesh adjustments to areas of applied boundary conditions
  • Higher mesh densities for curved features
  • Automatic edge refinement
OnScale Solve

5: Automatic mesh of a bike frame

How to generate meshes

To utilize the automatic mesh generation, simply click on the Generate Mesh button to begin the process. Our mesh algorithm will perform the analysis to create 5 different meshes ranging from Coarse to Very Fine for you to use:

OnScale Solve

6: Using the automatic mesh feature

The different meshes densities can be selected using the mesh slider. Additional settings are available to view the selected mesh and also, to display a range of mesh metrics with the ‘Advanced Mesh Settings’.

7: Mesh panel and available settings

 

8: ‘View Mesh’ capability showing a Coarse Mesh

With all these features in place, it allows for a simple workflow enabling complex CAD geometries to be meshed and simulated with ease on the OnScale Solve platform.

Getting Started with OnScale Solve

Engineers, designers, analysts, and current OnScale users can learn more about OnScale Solve and run their first cloud engineering simulation study by accessing these resources:

  • Create your Free account here.
  • Watch a quick guided video tour of the software, from log in to simulation.
  • Run your first simulation by following a 10-minute online tutorial.
  • Ask for technical support by emailing support@onscale.com.

With OnScale Solve you can work, collaborate, and share from any location and device. Ready to go? Create your free account today and start simulating with OnScale Solve! If you have any questions please contact us at info@onscale.com!

Kevin Chan
Kevin Chan

Kevin is a Senior Application Engineer at OnScale. He tests and helps with the development of OnScale. His background and experience with the solvers has allowed him to work on a wide range of projects with a big focus on MEMS & RF. Kevin holds a MEng in Electronic and Electrical Engineering at the University of Strathclyde.