Hi, Mohammad

When you use "static, general" step, You can't use dynamic boundary conditions such as velocity and angular velocity.

Best regards.

Dear Mohammad,

What is the objective of analysis and what is the outcome expected? If you want to find stress distribution due to inertia load (angular velocity), apply it as a load (rotational body force) and specify angular velocity or acceleration as desired.

Regards,

Chandrashekhar

Thank you for your help,

Which boundary conditions do you think should be selected?

in #abaqus

Dear Mohammad,

It seems the disc is hollow as I can see gap between inner edge and the axis. In such case, no need to apply radial BC. On the bottom point of the inner edge apply UZ=0 (along axial/vertical direction) through BC - Displacement/rotation - check U2 and enter 0. This will arrest rigid body motion of disc along axial direction.

Regards,

Chandrashekhar

thanks mr Chandrashekhar Hiremath ,

But I do not understand what you mean

1- On the bottom point of the inner edge apply UZ=0 (along axial/vertical direction) through ((( Apply to the point??))

2- BC - Displacement/rotation - check U2 and enter 0 ---

this for point or vertical line?

I know that the tension at the beginning and end of the disk should be zero

Best regards.

Dear Mohammad,

1. Yes. In this simulation, the disk is assumed to rotate freely without any constraint. To avoid rigid body motion, UZ or displacement along vertical direction at a point (node) need to be restrained as shown in attached file.

2. See attached images in word file.

Regards,

Chandrashekhar

thanks mr Chandrashekhar Hiremath too,

can you help me for create refrence point,or send the abaqus file

Thank you very much for your reply