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Invalid RJOINT with Non-Coincident Grids for universal joint ?

Dear Team,
I am getting the “invalid RJOINT with none coincident grids” error in OptiStruct, even after I made sure that both nodes specified in the RJOINT card are completely coincident (i.e., have identical coordinates). I have double-checked their locations in my pre-processor, but the error persists. What else can cause this issue, and how can I resolve it?

Thanks,
Mugundhan J.

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Accepted answers

solon

Hello,

the two grid points used in the RJOINT are not coincident.

The grid locations should be exactly the same

All comments

solon

Hello,

the two grid points used in the RJOINT are not coincident.

The grid locations should be exactly the same

Mugundhan03

Dear @solon,

Thank you for your reply. While changing the grid ID to be coincident, I do not get the rotation as applied in the HyperView (universal joint using RJOINT card).

02.fem

02.h3d

Thank

Mugundhan03

Dear @solon ,

Thank you for your reply. I changed that issue but got an error in solving

02.out

02.stat

02.fem

Please check this!
Thanks,
Mugundhan J.