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hi moderators,
i have set up an experimental system like below in order to study vibration isolation characteristics of a specimen
in this system, there are specimen and a rigid plate of 1 kg was placed on the specimen. there are another rigid plate bottom specimen
the specimen was adhered to both rigid plate
at the bottom, there are electromagnetic shaker in order to give harmonic movement
I have to FE model of the system I have mterial parameters but there are some error in BC
I m waiting your suggestions
hi dear admins
Hi
Do they contact each other only, or is there any glue?
there are between adhesive specimen and rigid mass, also there are between specimen and base plate.
I have encountered this error ;
*** ERROR # 2985 *** Dependent DOF 1 of GRID 87578 cannot be converted to an independent DOF with AUTOMSET for this rigid configuration. There are not enough constraint equations to reformulate it. If RBODY is used in the model, it is getting overconstraint in the model. By adding 'DEBUG,REMOVRGD,1.', Optistruct would not create constraint on the dependend node of RBODY
Is there a solution?
Best Regards
<?xml version="1.0" encoding="UTF-8"?>
Unable to find an attachment - read this blog
Hi Do they contact each other only, or is there any glue?
please help
I see some modelling issues in above shared model..I believe this you corrected and shared in below post.
https://community.altair.com/community?id=community_question&sys_id=51464c761b2bd0908017dc61ec4bcb7f
I see some modelling issues in above shared model..I believe this you corrected and shared in below post. https://community.altair.com/community?id=community_question&sys_id=51464c761b2bd0908017dc61ec4bcb7f
this problem was solved in the topic
I have encountered this error ; *** ERROR # 2985 *** Dependent DOF 1 of GRID 87578 cannot be converted to an independent DOF with AUTOMSET for this rigid configuration. There are not enough constraint equations to reformulate it. If RBODY is used in the model, it is getting overconstraint in the model. By adding 'DEBUG,REMOVRGD,1.', Optistruct would not create constraint on the dependend node of RBODY Is there a solution? Best Regards <?xml version="1.0" encoding="UTF-8"?>
I cannot solve this problem for vibration isolation
best regards
hi mr @Rahul R
I need your suggestion on my model pls help me
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