How to make the rigid body move in the analysis result using SOL400

lagae over 3 years ago

I try to run the assembly analysis using SOL 400

I have made two contact bodies

One is a deformable body whose application region has tetra mesh

The other is the rigid body whose application region has 2d quad mesh

The deformable body's material is rubber.

I have used the force/moment for the rigid body's motion control,

then applied the translation to the first control node under the LBCs displacement

After the run, I got the correct deformed rubber shape which looks the same as the Marc result.

but there is no movement for the rigid body on the result, even though the analysis has been completed correctly. ( the rigid body movement has reflected the rubber shape)

Is there some method that makes the rigid body move on the analysis result?

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0 Zach Fata over 3 years ago

Thanks for sharing the database. I recreated the issue and it is a known issue in patran (PAT-25655)

When you use the 2d elements to define the rigid surface. Patran will write BCPATCH entries to the bdf to define the surface of the contact body. Patran is currently unable to display the motion of rigid bodies defined using BCPATCH

When you use the surface to define the rigid body Patran will write the BCNURBS entry. When post-processing, patran uses the global variables of the contact body to move the rigid body for the animation.
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0 Zach Fata over 3 years ago

Thanks for sharing the database. I recreated the issue and it is a known issue in patran (PAT-25655)

When you use the 2d elements to define the rigid surface. Patran will write BCPATCH entries to the bdf to define the surface of the contact body. Patran is currently unable to display the motion of rigid bodies defined using BCPATCH

When you use the surface to define the rigid body Patran will write the BCNURBS entry. When post-processing, patran uses the global variables of the contact body to move the rigid body for the animation.
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