The Siemens Community Catalyst program was co-created with our community to acknowledge technology leaders who consistently contribute to the Siemens Community. Nominations are accepted on a rolling basis.
Dear all,
I have following doubts in meshing:
You can NOT get 'good' results with 'poor' mesh, sure!
But you can make a 'fine' mesh within critical area for 'better' results.
Hi Amar,
I think for 'good mesh' you are meaning a fine mesh. Fine mesh does not mean good mesh.The purpose of meshing is to get solutions in discrete locations. Good mesh is the mesh that serves your project objectives. So, as long as your results are accurate enough for your project, your mesh is sufficiently good. The most fundamental and accurate method for evaluating mesh quality is to refine the mesh until a critical result, such as the maximum stress in a specific location converges (i.e. it doesn’t change significantly with each refinement).
Normally if a mesh is too dense, it will require a large amount of computer memory and long run times, especially for nonlinear and transient analyses. In such cases the critical regions are meshed fine so that the results at those region are well captured. The user has to judge on this based on the model, analysis and experience.
Please go through Practical Aspects of Finite Element Simulation (A Study Guide) ebook which contains all practical concepts on FEA with examples.
Hi Amar, I think for 'good mesh' you are meaning a fine mesh. Fine mesh does not mean good mesh.The purpose of meshing is to get solutions in discrete locations. Good mesh is the mesh that serves your project objectives. So, as long as your results are accurate enough for your project, your mesh is sufficiently good. The most fundamental and accurate method for evaluating mesh quality is to refine the mesh until a critical result, such as the maximum stress in a specific location converges (i.e. it doesn’t change significantly with each refinement). Normally if a mesh is too dense, it will require a large amount of computer memory and long run times, especially for nonlinear and transient analyses. In such cases the critical regions are meshed fine so that the results at those region are well captured. The user has to judge on this based on the model, analysis and experience. Please go through Practical Aspects of Finite Element Simulation (A Study Guide) ebook which contains all practical concepts on FEA with examples.
Thank you sir for your reply! But I mean what I wrote. Also I have gone through the book you suggested but I was unable to get what I need to know. I am putting my question once again here -
1) Does the meshing in one portion of a single component affects the results in other portion of the same component?
2) Does the meshing in one component of an assembly affects the results in other components of the same assembly?
What do I want is to mesh critical portions with good mesh quality and remaining portions with the mesh having quality only good enough to capture the features of the component. Please give me guidance for the approach I am thinking of.
A low quality mesh lowers the accuracy of FEM results. Since we maintain continuity between components a poor mesh can affect other components also.
In general, poor element shapes can cause convergence issues in analyses and can produce inaccurate results.
Join us for a community conversation on how High-Performance Computing (HPC) and Simcenter PSIM work together to meet the increasing demands of modern power electronics simulation. During this one-hour technical session, you'll discover how leveraging HPC can speed up simulations, improve scalability, and empower engineers…
Join us for a community conversation on accelerating your motor simulation workflow with Simcenter Simlab. In this beginner-friendly session, we'll introduce the platform's automated model-building capabilities and show how easy it is to set up your first electric motor analysis. You'll see the basic steps of geometry…
Join us for a Community Conversation where we'll discuss practical approaches to analyzing complex electromagnetic models using hybrid solver techniques. This session will provide a general overview of how different computational methods can be combined within a single simulation to address models containing varied…
