Angle of deformation in ANSYS Workbench

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Discussion Overview

The discussion revolves around using ANSYS Workbench for modeling and analyzing deformation, specifically focusing on applying rotations and calculating moments and forces in a structural analysis context. Participants share their experiences and seek solutions to technical challenges related to the software.

Discussion Character

  • Technical explanation
  • Debate/contested
  • Mathematical reasoning
  • Homework-related

Main Points Raised

  • One participant seeks guidance on how to set a rotation of 8 degrees in ANSYS after importing a model from SolidWorks, noting issues with the "Fixed rotation" option being grayed out.
  • Another participant suggests creating a local coordinate system rotated by 8 degrees to achieve the desired effect.
  • There are inquiries about calculating moments and forces after applying linear deformation and rotation, with confusion about the absence of these options under the Solution section in ANSYS Workbench.
  • Participants discuss the process of obtaining nodal reactions for forces and moments, indicating steps to evaluate results in the software.
  • One participant mentions encountering a solution failure due to an undefined moment load, prompting discussions on how to resolve this issue.
  • A beginner in ANSYS asks about performing a torsion analysis on a thin copper specimen, seeking to calculate the resulting twists and the maximum amount of twist before bending occurs.

Areas of Agreement / Disagreement

Participants express varying levels of understanding and experience with ANSYS, leading to multiple competing views on how to approach the problems presented. The discussion remains unresolved regarding the best methods for applying forces and moments in the context of the specific modeling challenges.

Contextual Notes

Some participants reference specific features and settings within ANSYS Workbench, but there are limitations in the clarity of instructions and the assumptions made about the users' familiarity with the software. The discussion includes unresolved technical steps and dependencies on user-defined settings.

Who May Find This Useful

This discussion may be useful for users of ANSYS Workbench, particularly those interested in structural analysis, deformation modeling, and torsion analysis in materials. It may also benefit beginners seeking practical advice on navigating software challenges.

dacorsa
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Hi everyone,

I'm here to ask you one thing of ansys, I made this model with solidworks and I imported into ansys as STEP files (which is the difference in how import solidworks file?), I defined the part that will be studied and applied as you can see in the attached photo, a linear deformation at the edges, that is, the entry of this flexible stainless steel. Now the problem is , how can i set in ANSYS the rotation of the edges, a rotation of 8 °, how? I have found in "displacement remote" the possibility of entering a corner but then the simulation model is deformed in an incredible way and unrealistic. How can I do?

After i realized that the bar Environment and clicking Supports there is an option "Fixed rotation" but it is grayed out ... why?

I tried to select an edge, a point, but it remains a gray area ... I do not know how to do.

I hope some of you know, thanks in advance

ugo
 

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Engineering news on Phys.org
I am an APDL user but have you tried creating a local coordinate system that is rotated 8 degrees in the direction that you desire?
 
Thanks CFDFEAGURU,

i have already made that! now i want to calculate the moment and the force on an area if i apply deformation linear and a rotation. Do u know how to do that?

Why under Solution in ansys workbench there isn't moment and force?

thanks in advance!
 
If you are in the Static Structural section of the tree on the left hand side of the screen, there is a force and a moment input that you can select.

upload_2014-10-3_14-14-21.png
 
Oh, you must be looking for the nodal reactions if you are in the solution. Here is how you can get the reactions at the supports you have defined.

upload_2014-10-3_14-26-6.png


Just pick, Force Reaction and then Moment Reaction. You will have to right click on them once they are in the tree and select "Evaluate Results"
 
Excuse me ,
but i want to find the value of the moment, so i have to find in "Solution"

Isn't true? thanks!
 
And you will get this

upload_2014-10-3_14-28-5.png
 
dacorsa said:
Excuse me ,
but i want to find the value of the moment, so i have to find in "Solution"

Isn't true? thanks!

See the update posts with screenshots of how you can get the reactions.
 
ok that's it!

u are more fast than me! the problem now it's if i go to press Solve, doesn't go to solve...ask me other thing!
 
  • #10
Can you post a screenshot of what it is asking you when you click on solve?
 
  • #11
here it is:
 

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  • #12
Well, the solution has failed, that is what the red lightning bolts indicate. You have an undefined Moment load (the one with the ? in front of it) Suppress the undefined moment load or delete it and the solve the model. I am assuming you have the model constrained properly so rigid body motion will not occur.
 
  • #13
ok CFDFEAGURU!

i have made what i want to do! THANKS!
 

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  • Like
Likes   Reactions: CFDFEAGURU
  • #14
I am glad it all worked out for you. :)
 
  • #15
hi CFDFEAGURU,

i want to ask you if you can send me a pdf to better use ANSYS , can u help me?

please if u can use my email utomei @ tiscali.it
 
  • #16
Unfortunately, there isn't a single pdf that could allow you to fully understand ANSYS. What type of problem are you trying to solve? The real power of ANSYS is in APDL.
 
  • #17
Hi,
Is there a way (a user defined results expression) to plot a moment v rotation curve??
Thanks
 
  • #18
CFDFEAGURU said:
I am an APDL user but have you tried creating a local coordinate system that is rotated 8 degrees in the direction that you desire?

Hi CFDFEAGURU, hope you can answer my question. I already create the local coordinate system that is rotated at certain degrees, but how I want to put a force or moment to get the rotation ?
 
  • #19
dacorsa said:
Thanks CFDFEAGURU,

i have already made that! now i want to calculate the moment and the force on an area if i apply deformation linear and a rotation. Do u know how to do that?

Why under Solution in ansys workbench there isn't moment and force?

thanks in advance!

Hi dacorsa, I hope you can answer my question. How you apply force to rotate your part at 8 degrees using the local coordinate system ? Tq
 
  • #20
Hi CFDFEAGURI,

I am a beginner in ANSYS and i was looking to do a torsion analysis on a thin copper. The geometry is rectangular - 4 mm by .075 mm and 150 mm length.
I have fixed one end and applied moment on the other. I want to calculate how many twists will result based on given moment value. I also wanted to know what is the max amount of twist before the material (im using copper alloy) starts to bend instead of twisting. (Basically the minimum twist pitch)

Thanks
 

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