Hello; I would like to do a static study on a welded mechanical part

Simulation Generality
1

I would like to do a static study only as soon as I run the mesh I have interference that prevents me from continuing

Do you have an idea

Thank you

I put a fixed geometry in the holes on the right flange

I put a gravity and a force of 1000N on the top of the reducer

I removed the screws from the annalysis

and I have this problem

I want to do this study to see if my lantern will resist and I will want to see if the screws will resist (otherwise I will take 12.9)


vireur_capture.jpg
2

Good evening

 

Could you tell us which version of SolidWorks you are using and whether you are on Simulation or Simulation Express?

 

Are you doing the simulation at the assembly or part level (the transparent flange)?

 

If you are on Simulation Express, your part must have a single body! Multi-body is not supported on this version.

3

I do a simulation at the assembly level

I'm on simulation and I'm using version14

4

See these tutorials among others

http://www.lynkoa.com/tutos/3d/type-de-maillage-possible-avec-simulation

http://www.lynkoa.com/tutos/3d/importer-des-connection-avec-solidworks-simulation

http://www.lynkoa.com/tutos/3d/le-maillage-dans-solidworks-simulation

A good basis for simulation understanding

@+ ;-)

2 Likes
5

Hello

Every time the interference is at the level of the screws, since they appear in your screenshot.

On the other hand, for your study, in my opinion, you will have to simplify the model, such as putting a remote mass load instead of the engine

3 Likes
6

Hello

 

As @fthomas says, you shouldn't keep the engine for the study (too many details that will prevent the meshing at the same time imposing a very very fine mesh and therefore a very very long study).

The motor must indeed be replaced by a remote ground. 

If there is real interference, either they must be eliminated or they are logical (tight mounting for example) and therefore it is necessary to define "Tight Fit" contacts between the faces concerned.

If there are screws, replace them with connectors, pins or bolts to be even more precise and to be able to check the strength of these screws.

 

@+

 

2 Likes
7

What version is your file in if not confidential?

 

A good soul will take a look and maybe the walkthrough who knows ;-)

 

@+;-)

8

Why not start with interference detection to check where they are.

They may be in the engine assembly which can be removed as mentioned before.

 

Is it to check the resistance of the screws between the flange and the reducer? Or also the editor?

If the reducer is not to be checked, you might as well replace it with a remote force.

 

1 Like
9

Looking at the image better, we can see that the "ribs" are interfering on the flange. There is a discrepancy.

10

The straps are adjusted H7 

The 4 reinforcements are in the slide and rest on the tube

I want to do a simulation with the complete set (bending = see if the screws hold enough and twist for starting)

Apparently it's the screws that interfere

I don't know how to replace the engine with a remote mass

 

11
you have to replace the screws with bolt connectors... This allows the forces to be recovered in the bolts... shearing, bending... you won't get any of this if you model your screws.... For the engine, you can retrieve the moments of inertia of the engine, and enter the values in Remote Loading/Mass... You can find this function in the loads... right-click on the folder loading... The best way is to define a system of coordinates at the center of gravity and to enter the inertia values taken from the center of gravity... We can also enter the mass rather than the moments of inertia...
12

- add a marker to the DI CDG level of the engine.

- in external loading: choose remote loading/mass

- add the load/mass by selecting the motor mounts on the gearbox

- position on the previously defined coordinate system (or value x, y, z if known)

- engine mass

 

And that's it for remote charging.

 

Otherwise for the reinforcements, here is my previous remark in pictures.

 

And if the reducer is not to be calculated (e.g. element cots), you might as well put it as a load too. We will always have the values for the fixing screws of the reducer on the flange.


2014-03-17__vireur_capture__renforts.jpg
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I am sending you the file 


assemblage_vireur_fini_15.03.2014.sldasm
14

Make a takeaway composition, otherwise the pieces point to a location and cannot be opened.

15

Sorry fthomas it's not the screws that interfere

It's the reinforcements with the central tube

16

I made a simulation of each piece

That's all ok

Thank you all for your help