Warning/error table

[matos11]

Hello.

Could anyone help me with my problem? What should I do when workbench lists always this warnings/errors.


Thank you.

 

[Dave442]

Hello matos11,

It looks like your solution failed to converge because your constraints were inadequate and/or conflicting. You should recheck your constraints and investigate the partial results from your analysis to see if you can determine exactly what went wrong. Alternatively, if you provide a more detailed description of your analysis you may get more focused advice here on the forums.

Good luck,
Dave

 

[matos11]

Ok, so.

I need to investigate the stress- and deformation analysis of pliers.

I have pliers (see pic.). I set this boundary conditions:
1. forces on handles
2. forces on cutting edges
3. joints (reference-mobile): revolute - DOF only around z-axis
3.1. revolute: right handle-left handle with centre of rotation in the centre of the
pin
3.2. revolute: pin-upper cutting edge with centre of rotation in the centre of the
pin
3.3. revolute: left handle-pin with centre of rotation in the centre of the
pin
3.4. revolute: right handle-pin with centre of rotation in the centre of the
pin
3.5. revolute: pin-lower cutting edge with centre of rotation in the centre of the
pin
4. contacts (all bonded):
4.1. between handles
4.2. between handles and cutting edges
4.3. between handles and pin

forces applied to the handles are 400N, forces acting on the cutting edges 1200N...principle of lever.
I set iterative solver and large deflection.
I dont know what I did bad.

Please, help

Thanks

Martin