Learning Forum

[Furkan Yuşa Kılınç]

Hello, I would like to design a simple basic pulley and this is what I have done so far:

Also, I have created contacts and joints like these:

I am trying to simply simulate a rotation. I have given the frictional coefficient as 0.5 and the joint - rotational velocity is 0.1 rad/sec. But the result looks like this:

The rope has turned with the pulley and I dont understand why. There is earth gravity I have added so that shouldnt happen, right? The materials I have chosen for pulley and rope is structural steel and resin epoxy, respectively. Any help is appreciated.

[Ashish Khemka]

Hi,

Can you share the snapshots of how each joint and contact is defined? I tlooks that all the parts are deforming under gravity. Please refer to the following link as well:

How to model pulley systems and bollards with ropes under friction (ansys.com)

Regards,

Ashish Khemka

[Furkan Yuşa Kılınç]

These are the definitions:

I want to again emphasize that the rope is turning with the pulley, I expected it to slide on it.

thank you.

[Ashish Khemka]

Hi,

You can try giving displacement to the rope and pulley should turn with rope moving.

Regards,

Ashish Khemka

 

[Ashish Khemka]

Also, please refer to the following posts:

How to Model a Rope in Ansys for a Mechanical Analysis

Issues with Mesh on “Beam, Model Type: Cable” Element (ansys.com)

 

Regards,

Ashish Khemka