Skip to main content

Z88 Aurora : Open Source FEA

When reviewing papers for a conference, someone referenced Z88 Aurora (http://www.z88.org) which is an Open Source, cross-platform (Linux, Windows, OSX) Finite Element Analysis software. It is quite extensive and comes with examples and documentation. There is also Z88 (without the Aurora) which is also Open Source. I'm not fully sure about the difference between both... but AFAIK, Aurora contains the more user-friendly GUI with more interactivity, whereas Z88 is more limited in scope.

It contains a pre-processor (load geometry and FEA files, meshing, materials), FE-solver (calculates displacements, stresses and node forces) and a post-processor (visualization of results, export to CSV).

For once, this software is (quite) easy to use on OSX as well, provided you have the X11 system installed, which usually comes with installing the Apple Developers packages, which are included with your OS system disk. It relies on a few external libraries, but even those are embedded or included as a separate download. I had little problem to launch it. But getting something calculated requires more effort ;)

There are even video tutorials included and the read-me PDFs are of quite good quality (even explaining how to configure your trackpad and magic mouse for Mac users).

Screenshot borrowed from Z88 homepage
Edit: after I tested a bit more, I tried to recreate an existing example from another software tutorial to this software, reading alongside with the main userguide, which is quite extensive. Having two screens or at least one large helps a lot (I have a 25 inch + the 15 inch laptop screen).

I started manually defining the nodes (x,y,z), the elements/trusses (from/to node), add a material form the extensive included database, apply the different constraints (fixed nodes, forces) and then run the solver (which was finished before I even noticed something happening). The following screenshot shows onf of the results from the post-processor.

Post-processor results


Comments

  1. Anonymous10 May, 2011

    looks good, have been looking for an opensource FEA...

    keep us posted if get something to calculate.

    regards,

    corneel

    ReplyDelete
  2. I was able to get through an example (see edit in post). Not a clue if it is anywhere close to being realistic (my FEA knowledge is quite dusty), but at least getting through from start to finish is a good first step.

    ReplyDelete
  3. can this z88 aurora open source FEA can simulate welding operation?...which is for example to get the welding displacement??

    ReplyDelete
  4. I don't have a clue. I never even calculated this (unless I was sleeping during our steel-courses) so I wouldn't know how to start.

    But I'd try to look at the documentation. It seems quite open and flexible to do "any" FEA analysis, if I understand it correctly.

    ReplyDelete

Post a Comment

Popular posts from this blog

Improve usage of BIM during early design phases

When I was collecting ideas for a book chapter on BIM (that seemed to never have emerged after that), I collected 10 ideas, which I believe still reflect good recommendations to improve the usage of BIM during the early design phases. These ideas are related to BIM software, but you can apply them in any flavor, as long as you can model with Building Elements, Spaces and have control over representation. Introduction This article gives an overview of several recommendations and tips, to better apply BIM applications and BIM methodologies, in the context of the early design phases. Many of these tips are applicable in any BIM application and they are based on experience gathered from teaching, researching and using BIM software. Sometimes they could help software developers to improve the workflow of their particular BIM implementation. Tip 1 : Gradually increase the amount of information In the early design phases, the architect makes assumptions and lays out the main design in...

Getting BIM data into Unity (Part 0 - Introduction)

This post reflects on work that I carried out, elaborated during my guidance of a few Master thesis students, to better integrate BIM models into Unity. This will be a multi-part post. This makes each article a bit shorter to read, but allows more in-depth information overall. Hope you like it. Please comment with feedback and further improvements. Basic methodology Unity can import geometry from FBX and Collada (DAE) files primarily. There are a few other formats, but these are the preferred ones. When integrating CAD or BIM files into a realtime environment, you have to convert the geometry. During my Unity teaching and the writing of the book Unity for Architectural Visualization ( buy from Packt ), I’ve come up with a basic diagram explaining geometry exchange between CAD and BIM software and Unity. Throughout these posts, we’ll go more into detail. We start with ArchiCAD, but will tackle Revit in a follow-up post. Promised!

PythonOCC : Open Source interactive CAD shell (and how to run it on OSX)

What is PythonOCC? PythonOCC is an Open Source (LGPL) Python-wrapper for OpenCASCADE. So what is OpenCASCADE (OCC)? This is an advanced Open Source (custom license) modeling kernel, comparable to commercial engines, such as ACIS or Parasolid, which are used in quite some commercial CAD programs. When you want to develop CAD software, you could use OCC and write programs in C++. And why using Python? With this wrapper, you can create CAD and geometry scripts in Python, which is an interpreted Object-oriented scripting language. You can write almost "on-the-fly" and seriously reduce the implementation effort, by skipping the compiling-phase. You can even interact with a running program in the Python interpreter. Want to read more about this? The OpenCASCADE official website  (currently Linux and Windows are officially supported) The PythonOCC website/blog  (beware that the core of the actions happen in the development repositories). So far so good. Now the nasty, techn...