This open-source tool used from the command window is really nice (and frequently updated so it shouldn't be a problem when YT changes something to block downloads in various ways - that's the problem with most websites offering YT downloads): https://github.com/yt-dlp/yt-dlp It may look complex wit...

KaMei wrote: ↑Thu May 04, 2023 9:45 ameprAF8Y.jpeg

What about the Canadian potatoes in Bohemian Rhapsody style ?
It's from a cartoon ;-)

bnemec wrote: ↑Thu Mar 23, 2023 10:54 am Can the .FCStd files be opened/edited in either of the branches or are they exclusive?

They are compatible but some features specific to Link Branch may not be recognized properly in the official version. For example, multiple separated solids within a single Body container.

Are you speaking of the branch that's mentioned in the long winded video "FreeCAD Fundamentally Broken..." that is linked at the bottom of the TNP documentation page? Yeah, that one. You can download it from here: https://github.com/realthunder/FreeCAD/releases It contains various other i...

Frederick_Law wrote: ↑Thu Mar 23, 2023 8:48 am Right hand drive.
One on far right is parking brake

Right, that would make sense. I'm not used to that configuration.

KaMei wrote: ↑Wed Mar 22, 2023 2:51 am premium-dad-jokes-6412d1fb38974__700.jpg

But why is he pushing the brake and the clutch instead ?

KaMei wrote: ↑Thu Mar 23, 2023 2:23 am premium-dad-jokes-6412d61628a1f__700.jpg

But it's the opposite when it comes to car cloth ;-)

Speaking about FreeCAD, TNP is particularly pronounced in that software. That's why they have that comprehensive description. However, there's already a fix for that created by a user and it's currently available in his branch called Link Branch. They are working on implementing this fix in the main...

Thank you for the replies. mgibeault The problem is that CAD software operates on relative constraints between multiple parts and not directly on degrees of freedom of geometric entities belonging to individual parts. So, for example, I can't constrain a vertex in only 2 global directions. Unless I ...

Hi, I'm looking for software capable of simulating mechanical degrees of freedom. Basically, what I need is the possibility to apply constraints on selected degrees of freedom (mainly translational but rotational could be also helpful) of vertices, edges and faces. Those constraints would have to ut...

Thank you guys for your help. FreeCAD now features concentric constraint. Not as a separate constraint type but they added the possibility to select circles, arcs and ellipses when applying coincident constraint. FreeCAD's sketcher supports only 2D sketches so this solution should be sufficient for ...

Welds are rarely modeled in stress analysis (usually only when calculating fatigue) but it might be necessary to include the geometry of welds in the model. Here you can find an interesting comparison of different approaches to weld modeling: https://apolloedge.com/2018/07/19/model-welds-for-finite-...

Thank you for all the replies, they helped me convinced others that coincidence can be helpful.

Frederick_Law wrote: ↑Tue Oct 04, 2022 5:20 pm Make sure it can do multithread processing.
Most, if not all CAD now are suck in single thread world.

It's FreeCAD, it supports multithreading partially.

Thank you for the reply. Really I don't know what your question is. I guess that I should explain what the source of this question is. I'm helping with the development of open-source CAD software. It already features a coincident constraint tool in the sketcher but concentric constraints are missing...

Hi, I wonder what the differences are between concentric and coincident (applied to centers of circles/arcs) constraint in sketches. Both in terms of applications and the way they work. When it comes to applications, I'm looking for cases when the concentric constraint is superior to coincident. One...

We've reached a point in FEA history where differences in platforms are little more than cosmetic. Every simulation software does what you ask. Learn to ask better. Right, at least in terms of GUI and basic types of analyses. In each FEA software you can perform linear (and simple nonlinear) static...

KaMei wrote: ↑Mon Nov 22, 2021 1:45 am E9FeEp9WQAEXH8M.jpg

So what you are looking for is a combination of pin connector with retaining ring (axial translation blocked) and bearing connector with self-alignment (off-axis shaft rotation allowed), right ? I’m afraid that you can’t create such custom connectors in SW Simulation. Advanced FEA software like Abaq...

I usually don't use inertia relief due to concerns of potential impact on results. However, I do realize that in some cases (like floating or flying structures) inertia relief is a very useful feature.

Great, thank you.

Hi,

if you don’t mind, it would be useful to have the SW Motion Analysis forum as well. There is already one topic that could be moved to this forum as it doesn’t really fit the SW Simulation forum: viewtopic.php?f=50&t=838

matt wrote: ↑Wed Jul 07, 2021 11:50 amok, done

Great, thank you very much. I'll definitely contribute to these subforums as it's my field of interest.

Could you move the existing topics about SW Simulation to its new subforum and maybe also rename the Simulation and Analysis to CAE ?

You can also do this manually if you wish, like that:

[…]users_name[/…]

just replace … with mention

Result:
@mattpeneguy

Hi matt , I think that it would be good to add Simulation (and maybe also Flow Simulation) subforum to SolidWorks forum like it was done in the original SW community. But I would leave the current Simulation and Analysis subforum in Other Engineering Technology so that non-SW users may discuss their...

In SolidWorks Simulation there are two options that you can use to limit the search for natural frequencies: - "Upper Bound Frequency" - solver calculates only the natural frequencies below the value specified here - "Calculate frequencies closest to (frequency shift)" - solver s...

These values are just selected natural frequencies of the structure (it’s not possible to find them all). You should search for natural frequencies around the frequencies of expected excitations. In fact, you can specify the range in Hz to be searched by the eigensolver.

There is a trivially easy solution to this, two actually come to mind. The first is to fix just one vertex. This is my favorite as then I can check to see that the forces on this point (sometimes I use an edge if it would be a little more convenient in preventing rotation) tend to be very small. Th...

Thank you both for replies. With the help of forum members, I’ve found out that in order to correctly model this analytical problem using FEA (regardless of the software), different boundary conditions should be used than just fixed constraints. Slider/roller BCs on the side faces are a good idea. T...

It depends on the requirements and operating conditions of this machine. For example your structure shouldn’t have a natural frequency around 150 Hz if vibrations of this magnitude are expected during operation. Otherwise, the structure may fail due to resonance.

Hi, it's a rather simple issue but I'm not sure what actually happens here. Consider a rectangular plate meshed with 3D solid elements. The plate is placed between two rigid planes and I model it by simply constraining two opposite faces in all directions. The plate is subjected to uniform compressi...

Not at the same time but in many cases they can be used interchangeably. It depends if you can estimate equivalent force or displacement. Generally the rule is to use the type of control that occurs in real life for the structure. However, in some cases displacement control might be necessary to ove...

Displacement control simply means that you apply prescribed displacement (for example make some nodes move 5 mm downwards) instead of force.

It's better to avoid any gaps, define contact pairs manually and use displacement control whenever possible.