Relaxing DOFs
Altair EmployeeI have a problem regarding the modelling of a ball joint. I would like to relax the three rotations of a node shared by two beam elements but couldn't find out how.
If I try to use the command 'joint' then I have to solve the simulation as a multibody dynamic problem and that looks more complicated as I need to set up more control cards like MBSIM and set up other options which I do not understand.
What's the best strategy to solve my problem?
Answers
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Altair Forum User said:
I have a problem regarding the modelling of a ball joint. I would like to relax the three rotations of a node shared by two beam elements but couldn't find out how.
If I try to use the command 'joint' then I have to solve the simulation as a multibody dynamic problem and that looks more complicated as I need to set up more control cards like MBSIM and set up other options which I do not understand.
What's the best strategy to solve my problem?
Hi
two beams connect together with full 6 dofs
if you want to release some dofs, just update 'pin flag'
enter panel 1d>bar>update to do this
and be careful that these 'pin flag' dofs are in beam coordinate system, not basic system
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Altair Forum User said:
Hi
two beams connect together with full 6 dofs
if you want to release some dofs, just update 'pin flag'
enter panel 1d>bar>update to do this
and be careful that these 'pin flag' dofs are in beam coordinate system, not basic system
Hi tinh, can I use the same procedure in radioss ??
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Multibody Dynamics Simulation is only available with OptiStruct.So Radioss will not work here.
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