new workbench for structural engineers
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- ebrahim raeyat
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new workbench for structural engineers
Hello, as discuss here, i think we must create new WB that inherit some property from FEM and BIM WB to suite for structural engineering.
for example in structural analysis we assume Z direction to be gravity load, only 1D and 2D elements and so on.
I think we must create new objects that inherits some Arch objects. like line for 1D element and add some properties to it, like loads, section, ends release and so on. how do you think about it?
@bernd
for example in structural analysis we assume Z direction to be gravity load, only 1D and 2D elements and so on.
I think we must create new objects that inherits some Arch objects. like line for 1D element and add some properties to it, like loads, section, ends release and so on. how do you think about it?
@bernd
Re: new workbench for structural engineers
I think @bernd is with you on this onebernd wrote: ↑Mon Apr 06, 2020 10:42 amI am totally with you. Something between Arch (BIM) and FEM. Something which uses the Arch structural nodes and makes in put of loads an load combinations very easy. There is just one little problem with this. TIME ... I have this in mind for years, but never started to do some serious code in this regard.ebrahim raeyat wrote: ↑Mon Apr 06, 2020 9:51 am @bernd, i think if we create another workbench that specially suite for structural engineering is useful, because FEM workbench is very general workbench. like csiamerican products sap2000 and etabs. sap2000 is a general FEM program, while etabs is suite specifically for structural engineering. in real word we only need beam-column and shell element and later for nonlinear analysis some additional element that thos also has 1D or 2D dimensions. what is your opinion?
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Re: new workbench for structural engineers
excellent idea. check this topic https://forum.freecadweb.org/viewtopic.php?f=23&t=17909 The nodes exist already.
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Re: new workbench for structural engineers
Dear everyone,
Are you looking for a workbench that looks like CypeCAD? Maybe you can take some ideas...
http://cypecad.cype.es/
best regards,
Ekaitz.
Are you looking for a workbench that looks like CypeCAD? Maybe you can take some ideas...
http://cypecad.cype.es/
best regards,
Ekaitz.
- ebrahim raeyat
- Posts: 619
- Joined: Sun Sep 09, 2018 7:00 pm
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Re: new workbench for structural engineers
yes, it is very complete software, i mean a simpler like CSI ETABS.EkaitzEsteban wrote: ↑Mon Apr 13, 2020 7:40 am Dear everyone,
Are you looking for a workbench that looks like CypeCAD? Maybe you can take some ideas...
http://cypecad.cype.es/
best regards,
Ekaitz.
Re: new workbench for structural engineers
biggest difference from this new workbench to FEM would be the attribute definition. In this new work bench the attributes would be defined in the objects. For example a column would know its cross section. In FEM it is the other way around. In FEM a cross section object knows his members. the output of this new workbench would be a FreeCAD FEM analysis with FEM objects.
The big question is, should this happen directly inside the Arch objects, on the Arch structure axis, or should there be some in between geometric object may be parametrically connected to the Arch object.
The big question is, should this happen directly inside the Arch objects, on the Arch structure axis, or should there be some in between geometric object may be parametrically connected to the Arch object.
- ebrahim raeyat
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- Joined: Sun Sep 09, 2018 7:00 pm
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Re: new workbench for structural engineers
exactly this is only furthermore properties for Arch objects. for this, I think we must inherit Arch objects. I will try it for the 1D element soon.bernd wrote: ↑Mon Apr 27, 2020 5:54 am biggest difference from this new workbench to FEM would be the attribute definition. In this new work bench the attributes would be defined in the objects. For example a column would know its cross section. In FEM it is the other way around. In FEM a cross section object knows his members. the output of this new workbench would be a FreeCAD FEM analysis with FEM objects.
The big question is, should this happen directly inside the Arch objects, on the Arch structure axis, or should there be some in between geometric object may be parametrically connected to the Arch object.
Re: new workbench for structural engineers
I have a request regarding the Structural WB and FEM.
I think that both of you have a building kind of background. What i want to propose is a more general situation.
A structure is basically everywhere: It could be a building; a bridge; a machine frame; etc.
I assume that the different appllications have different workflows. A machineframe is mostly designed in 3D(the beams are the exact shape they are for production) also because all the parts that have to fit with this.
For buildings or briges probably 1D or both.
I think it would be great if FreeCAD has some methods for creating structures (3d sketches - would be great). preferable also with (optional) 3D shapes since cross section is known.
And for FEM i would say that it can read the crossection of a object. If a object don't have a crossection creating one afterwards.
This because a structural WB in the way you are looking to it is just a FEM with a slightly different workflow.
I would say make a double workflow for FEM (pre and post creation of cross sections) and create a structure WB.
What in my opinion the most difficult part could be of the structure WB is that it should work for both Part design and arch WB sinceit could be the base of both probably.
I think that both of you have a building kind of background. What i want to propose is a more general situation.
A structure is basically everywhere: It could be a building; a bridge; a machine frame; etc.
I assume that the different appllications have different workflows. A machineframe is mostly designed in 3D(the beams are the exact shape they are for production) also because all the parts that have to fit with this.
For buildings or briges probably 1D or both.
I think it would be great if FreeCAD has some methods for creating structures (3d sketches - would be great). preferable also with (optional) 3D shapes since cross section is known.
And for FEM i would say that it can read the crossection of a object. If a object don't have a crossection creating one afterwards.
This because a structural WB in the way you are looking to it is just a FEM with a slightly different workflow.
I would say make a double workflow for FEM (pre and post creation of cross sections) and create a structure WB.
What in my opinion the most difficult part could be of the structure WB is that it should work for both Part design and arch WB sinceit could be the base of both probably.
- ebrahim raeyat
- Posts: 619
- Joined: Sun Sep 09, 2018 7:00 pm
- Location: Iran
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Re: new workbench for structural engineers
thanks bernd, i will have a look as soon as possible.bernd wrote: ↑Fri Jun 12, 2020 5:19 am related https://forum.freecadweb.org/viewtopic.php?f=39&t=47506