AnsweredAssumed Answered

Solidworks Simulation : Need to know the force for an imposed displacement

Question asked by Antonin Raffarin on Oct 19, 2014
Latest reply on Oct 24, 2014 by Jared Conway

Like • Show 0 Likes0
Comment • 7

Hi all,

I am workingv on an simple project but I need your help. I enclosed a picture of my project. I have two plastic cylinders(contact with friction). I would like to know the force I need(2 pointers) in order to my orange cylinder does a displacement of 5 cm long. I fixed my blue cylinder and imposed the displacement to the orange cylinder. The simulation looks working(Large displacement) but how I can know the force?

Moreover I take advantage of that to ask you another question. Usually when I do a FEA analysis with other softwares I check if my results don't depend on my mesh. But apparently here Solidworks does it by itself, right?

Thanks !

Attachments

Image1.jpg22.5 KB

No one else has this question

Outcomes

Jared Conway Oct 20, 2014 1:51 AM

output force with the reaction force tool

and no, solidworks doesn't automatically check for convergence. there is adaptive meshing that helps but is not automatic.

im also not sure if this analysis is a good fit for fea since the components are just moving, not deforming

Actions

Antonin Raffarin @ Jared Conway on Oct 20, 2014 1:54 AM

Thanks a lot for answering Jared ! I think you re right, I don't want to check the deformation. Maybe Solidworks Motion would be enough?

Actions

Greg Fowler @ Antonin Raffarin on Oct 21, 2014 5:40 PM

I don't think you can use both the "Large Displacement" solver mode + the calculation of reaction/free-body forces. It's either one or the other. Motion might be your bet but I've never touched it and not sure how it's gonna handle the friction force...

Actions

Shaun Densberger @ Greg Fowler on Oct 21, 2014 6:47 PM

"I don't think you can use both the "Large Displacement" solver mode + the calculation of reaction/free-body forces. It's either one or the other."

I don't think it should be an issue; the only thing that might change is the direction and magnitude as a function of the load factor.

Actions

Sean Screws @ Shaun Densberger on Oct 23, 2014 2:08 PM

Large Displacement + Reaction forces OKAY

Large Displacement + Free Body Forces, One or the other.

Actions

Jared Conway @ Antonin Raffarin on Oct 24, 2014 1:40 PM

very likely.

Actions

Shaun Densberger Oct 21, 2014 6:53 PM

" I have two plastic cylinders(contact with friction). I would like to know the force I need(2 pointers) in order to my orange cylinder does a displacement of 5 cm long."

So the orange cylinder slides along the blue one and you want to know the frictional force needed to cause motion? If so, then this seems like a fairly straight forward hand calc that should take like 5 minutes (unless you expect the cylinder to deform significantly and change the contact pressure).

Actions

7 Replies

Jared Conway Oct 20, 2014 1:51 AM
Mark Correct
Correct Answer
output force with the reaction force tool

and no, solidworks doesn't automatically check for convergence. there is adaptive meshing that helps but is not automatic.

im also not sure if this analysis is a good fit for fea since the components are just moving, not deforming
Like • Show 0 Likes0
Actions
- Antonin Raffarin @ Jared Conway on Oct 20, 2014 1:54 AM
  Mark Correct
  Correct Answer
  Thanks a lot for answering Jared ! I think you re right, I don't want to check the deformation. Maybe Solidworks Motion would be enough?
  Like • Show 0 Likes0
  Actions
  - Greg Fowler @ Antonin Raffarin on Oct 21, 2014 5:40 PM
    Mark Correct
    Correct Answer
    I don't think you can use both the "Large Displacement" solver mode + the calculation of reaction/free-body forces. It's either one or the other. Motion might be your bet but I've never touched it and not sure how it's gonna handle the friction force...
    Like • Show 1 Like1
    Actions
    - Shaun Densberger @ Greg Fowler on Oct 21, 2014 6:47 PM
      Mark Correct
      Correct Answer
      "I don't think you can use both the "Large Displacement" solver mode + the calculation of reaction/free-body forces. It's either one or the other."
      
      I don't think it should be an issue; the only thing that might change is the direction and magnitude as a function of the load factor.
      Like • Show 1 Like1
      Actions
      - Sean Screws @ Shaun Densberger on Oct 23, 2014 2:08 PM
        Mark Correct
        Correct Answer
        Large Displacement + Reaction forces OKAY
        Large Displacement + Free Body Forces, One or the other.
        Like • Show 1 Like1
        Actions
  - Jared Conway @ Antonin Raffarin on Oct 24, 2014 1:40 PM
    Mark Correct
    Correct Answer
    very likely.
    Like • Show 0 Likes0
    Actions
Shaun Densberger Oct 21, 2014 6:53 PM
Mark Correct
Correct Answer
" I have two plastic cylinders(contact with friction). I would like to know the force I need(2 pointers) in order to my orange cylinder does a displacement of 5 cm long."

So the orange cylinder slides along the blue one and you want to know the frictional force needed to cause motion? If so, then this seems like a fairly straight forward hand calc that should take like 5 minutes (unless you expect the cylinder to deform significantly and change the contact pressure).
Like • Show 1 Like1
Actions

Solidworks Simulation : Need to know the force for an imposed displacement

Attachments

Outcomes

Related Content

Recommended Content