Learning Forum

[s_singh2]

Hello Everyone, 

I work on a project in which I want to find the stress in Planet Gear Train. I keep the frictionless contact between teeth.Body-Ground Revolute joint in sun gear. Body-Body revolute joint between Planet Gear and Carrier. Body-Ground Fixed joint in Ring Gear. I applied Joint Load on Sun Gear in form of input  torque. Joint rotation in Planet Carrier 0 to 37degree. Whenever i try to solve it say "Solver engine was not able to converge the solution".

I also see the previous discussion on this topic but it will give me same convergence problem. Please help to solve this.

Thank You

[peteroznewman]

The connections between the parts seems correct. The configuration you describe has a fixed ring gear. You applied a torque to the revolute joint between the planet gear and the carrier. How is that achieved in reality since the planet gear circles around the sun gear?  I can see either 1) applying a torque to the sun gear relative to ground and controlling rotation of the carrier axle relative to ground or 2) applying a torque to the carrier axle and controlling the rotation of the sun gear.

Under Analysis Settings, did you turn on Large Deflection?

[s_singh2]

Hi Peter

My input is Sun Gear and my Output is Planet Carrier, so, I applied joint moment in Sun Gear and joint rotation in Planet Carrier.

In Frictionless Setting I set Formulation - Augmented Lagrange; Update Stiffness - Each Iteration; Interferance Treatment - Adjust to touch.

Yes, I turned Large Deflection ON. Please Help me.

If possible will you please check what I have done wrong? My ansys file link

https://drive.google.com/file/d/1QF7RH9s32sJdJaz7nmDgNHPcStejXpSm/view?usp=sharing

[s_singh2]

Hello sir, Please help me to solve this