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Applying SPC on a disk for the rotation of disk due to external force

Wani_22334

Hi,

I am new to Optistruct and I have a problem applying the correct method for SPC. I have a disk on the xz plane with a certain thickness and internal diameter. 3D meshing was done. I created RBE2 on the internal region with a master node at the center of it. To fix the disk, I created SPC with a free rotation around the y-axis (DOF 5) so that the disk can rotate. A tangential force is applied on the external of the disk. The result is very weird as the disk expands.

Please assist me with this.

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HyperMesh

OptiStruct

v2021.2

Accepted answers

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Adriano_Koga

this is only a visualization issue, as you're probably animation in linear mode.

Linear mode does not plot large rotations properly, as it considers small rotations.

In order to see this correctly, transient animation is better suited. (if it is a NL analysis, request NLOUT)