Search found 395 matches
- Thu Aug 27, 2015 8:32 am
- Forum: FEM
- Topic: Updating the wiki page
- Replies: 42
- Views: 7741
Re: Updating the wiki page
Ahh but you can allready use loads in any direction by defining the direction vector in force constraint. I now see you can, I missed that, But it is not easy to use. Can work but I think simplifying this to a Visible direction on the screen will make very user friendly. Do you really need a rotati...
- Wed Aug 26, 2015 8:31 am
- Forum: FEM
- Topic: Updating the wiki page
- Replies: 42
- Views: 7741
Re: Updating the wiki page
What would be really cool if someone could make a little tutorial on FEM Tutorial Extending the one there or make a totally new one. Arch tutorial is a great example but a small one which just shows how to make a simple analysis would be great too. I can help with this. I have been making some powe...
- Wed Aug 26, 2015 7:34 am
- Forum: FEM
- Topic: Frequency analysis
- Replies: 64
- Views: 18600
Re: Frequency analysis
This is good work ! PrzemoF wrote: ... I'm also considering making ccxDatReader as there are some interesing information in the CalculiX .dat files. That will be very useful. Maybe Reading the outputs from the "*.dat" file to the Spreadsheet module ? That way manipulation of data as discus...
- Mon Aug 24, 2015 12:11 pm
- Forum: FEM
- Topic: Frequency analysis
- Replies: 64
- Views: 18600
Re: Frequency analysis
Now the only point of plotting a mode shape is to create a pretty animation that help you understand how the part is deforming. If you use this analysis in a report you will only report the frequencies and mass participation factors. All the mass participation factors will be smaller than one. If yo...
- Mon Aug 24, 2015 11:10 am
- Forum: FEM
- Topic: Frequency analysis
- Replies: 64
- Views: 18600
Re: Frequency analysis
Sorry a typo from me, the displacement value has no real meaning A friend of mine wrote this page to explain it to users of commercial software. https://esteq.co.za/2014/11/25/modal/ Read the section of what a mode shape is and what it is not What a mode is not: As mentioned before, a mode has a sha...
- Mon Aug 24, 2015 6:49 am
- Forum: FEM
- Topic: Frequency analysis
- Replies: 64
- Views: 18600
Re: Frequency analysis
A frequency analysis is merely a eigenvalue solution to the stiffness matrix. The stiffness matrix is updated due to the constraints applied and the eigenvalue analysis applied to that matrix. The actual magnitude of the displacements have no real value except for interpretation relative to each oth...
- Mon Aug 24, 2015 5:54 am
- Forum: FEM
- Topic: How approachable is the FEM development if starting from zero?
- Replies: 6
- Views: 2100
Re: How approachable is the FEM development if starting from zero?
Hi mviljamaa Personally I had No C++ experience, I have plenty of fortran/Matlab etc. I do however have plenty of FEA experience and know what features will be very useful etc. I have spent about 30 hours on my implementation over the last three months. (most of the time reading programming tutorial...
- Wed Jul 29, 2015 4:57 am
- Forum: FEM
- Topic: Thermal FEM Analysis
- Replies: 9
- Views: 7902
Re: Thermal FEM Analysis
Except for node, elements, etc. This is what goes into the caculix input deck for steady state analysis To change it to a transient coupled analysis Change the following lines ** Coupled Temperature Solves Temperature and Stress field simultaneously *COUPLED TEMPERATURE-DISPLACEMENT 0.2,3000.0 ** Ma...
- Tue Jul 14, 2015 4:45 am
- Forum: FEM
- Topic: Howto add a FEM constraint help please !
- Replies: 2
- Views: 1417
Re: Howto add a FEM constraint help please !
Thanks
That clearly shows what needs to be changed.
Learning how to change it will take time but like i said I have to start at some point
Michael
That clearly shows what needs to be changed.
Learning how to change it will take time but like i said I have to start at some point
Michael
- Mon Jul 13, 2015 8:41 am
- Forum: FEM
- Topic: Howto add a FEM constraint help please !
- Replies: 2
- Views: 1417
Howto add a FEM constraint help please !
I have been trying to add a constraint to the FEM workbench. I am however finding difficult to figure out all the components I need to add and how to do this. I am also not understanding the classes and definition ? (I am a Newby and have done Fortran coding but not C++ or object orientated) The onl...