CalculiX CrunchiX USER’S MANUAL version. Guido Dhondt. March 2, Contents. 1 Introduction. 2 How to perform CalculiX. CalculiX USER’S MANUAL – CalculiX GraphiX, Version -. Getting Started with CalculiX. Jeff Baylor – Convergent Mechanical Solutions LLC. CGX Tutorial based on a tutorial by Guido Dhondt. Additional contributions by.

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CalculiX is a package designed to solve field problems. So I tried to find out, if it is possible to do some basic physics with it. The calculations were done to determine the burst-speed and the highest allowable rotational speed concerning low cycle fatigue and creep.

The solver is able to do linear and non-linear calculations. Like my FreeCAD work? The jet engine was build around a turbo-charger rotor in the early 90’s by Andreas Funke and Klaus Wittig.

Click Manusl to see the example of the turbo-charger compressor.

After some trial and error I got a working bouncing pendulum with aclculix two finite elements. The models are meshed with 20 noded brick elements with reduced integration.

The surface behavior parameter is way off from the recommendation in the Calculix manual. One degree of freedom is left, so they can rotate about their fix-point. Read more about what I do at my blog. Click HERE for the jet-engine-model and documentation.


A simple step reader is included. The input file is given together with two scripts, in order to create an animation with cgx. In addition the eigenfrequencies were calculated to determine possible resonances with the vanes. The driving force is gravity.

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For a quick overview of the capabilities of CalculiX the results of an investigation of a small jet engine are presented. Do you think this could be extended to do kinematics-type stuff, like animate a four-bar linkage and show the time-dependent stress concentrations throughout the members?

Put all files into one directory. Click HERE to see the example of the turbo-charger turbine. The right and left side of the disks are connected by cyclic symmetry equations which allow to calculate eigenvalues and mode-shapes for certain nodal diameters of a rotational symmetric volume based only on a segment of the structure. Both programs can be used independently.

The contact feature did need tuning. You do not have the required permissions to view the files attached to this post. The method used is the finite element method. Contact information can be found at the bottom of the “Download” page.

The compressor is made of casted aluminum alloy AlSi – C and the turbine of a high temperature alloy Inco C. The FE-model was build from scratch with CalculiX and the compressor- and turbine models together with solver input files can be found in the distribution.


Last edited by makkemal on Wed Feb 08, 1: The CalculiX package was developed by a calcuilx of enthusiasts in their raw spare time. I’m still pretty new to this, can you expand on these instructions a little more? The rigid body concept is used to fix the two bodies in space.

Exploring Calculix – FreeCAD Forum

Because the solver makes use of the abaqus input format it is possible to use commercial pre-processors as well. Static, dynamic and thermal solutions are available. Open the results with cgx and there type Calculiix I’d appreciate any level of support via PatreonLiberapayor PayPal! Anyone for making an importer cwlculix the animation workbench?

CalculiX FE-Model of a jet engine with turbo-charger compressor blue and turbine red. Did not know that this is possible in CalculiX.