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Constraint degrees of freedom of SPC with respect to local coordinate system and importance of CURVE option in constraint panel

Altair Forum User

Hi sir/Madam,

in constraints panel i do not find any option to select local coordinate,

how can i constraint only one degree of freedom with respect to local coordinate system ?

and

what is use of curve option in constraint panel ?

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tinh

Please refer to this post

curve option is for varying displacement constraints. it is not possible in optistruct perhaps, but available for certain solver

Altair Forum User

Tank you @tinh for your instant reply.

can you please elaborate more on curves, or give some external link for the same.

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tinh

sorry because i do not use it yet.

do you know about BOUNDARY PRESCRIBE MOTION (like in lsdyna)?

curve SPC is something like that. You should read some solver manuals to understand detail