flexible dynamic
flexible dynamic
(OP)
I am simulating a wheel in workbench in flexible dynamic analysis, I applyed a rotational velocity to the wheel axis, But the wheel is not moving forward!!!
Is there other set up I must do to make the wheel going forward?
Thanks
Is there other set up I must do to make the wheel going forward?
Thanks





RE: flexible dynamic
RE: flexible dynamic
In flexible dynamic set up, there are standard earth gravity, rotational velocity and fixed support( for the bottom face of ground).
in solution, i want to find out what is the reaction force between ground and wheel.
but after simulation I can not see any wheel movement in the animation.
Many thanks for your help
RE: flexible dynamic
2) What type of analysis is this? ANTYPE,TRANS?
Remember that you can't apply a rotational velocity directly to the model, not in a transient dynamic analysis which I assume you are undertaking (ANTYPE,TRANS).
Instead, if this is the case, you will need to apply a rotational displacement with respect to time.
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RE: flexible dynamic
It worked for rigid wheel at the hard ground perfectly.
but for flexible wheel (which has deformation) gave me this error massage"The solver engine was unable to converge on a solution for the nonlinear problem as constrained. Please see the Troubleshooting section of the Help System for more information"
I checked the help and
changed:
mesh>>>>>>>> "mechanical fine" or also "Explicit Fine"
analysis settings>>> "weak springs" and "large deformation" on
Connection>>>>>>Rough with "Asymmetric" Behavior
But I still got the same error!
Does any body have a thought or suggestion?
many thanks.
RE: flexible dynamic
I'm working too on a contact's problem. When the analysis don't converge, you can modify the stiffness of the contact (in the differents options of the contact)
good luck
RE: flexible dynamic
Check also the status of your contacts with:
CNCHECK, Option, RID1, RID2, RINC
this will give you detailed feedback on what ANSYS is seeing.
------------
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RE: flexible dynamic
should I use "Rough connection" for initial contact as well?
or must be another connection option?
RE: flexible dynamic
if it is:
rough wheel-ground... contact side>>>>" contact" and status>>>closed
rough wheel-ground.....contact side "target" and status>>>Inactive.
I have done simulations for "frictional" as well.
with the same initial information in contact tool.
I got error and no deformation on wheel outer ring!! with both setting.
I could not find out what the problem is:((