Spring orientation

Altair Forum User

Hi,

Im working with some mass-spring systems, at the spring element creation panel i must select a  DOF for the spring, but it seems that i can only orient the spring parallel to the global axes. How can i define the DOF of a spring oriented in a different direction that the global axes.
 

Thanks.

Altair Forum User

Hi,

 

please tell us, which solver and which element type.

Normaly you choose 2 nodes for spring x-direction.

 

Regards,

Mario

evsm1982

Hi,

 

Try this:

-you must create a local coordonate system (Analisys->systems->create by axis orientation or by node referance)with the orientation that you want

-after you have the system press card edit->elems(choose spring and his type)->edit->press CID and select the local system that you created earlier

 

Hope this will help you!

Altair Forum User

Altair Forum User said:

Hi,

 

Try this:

-you must create a local coordonate system (Analisys->systems->create by axis orientation or by node referance)with the orientation that you want

-after you have the system press card edit->elems(choose spring and his type)->edit->press CID and select the local system that you created earlier

 

Hope this will help you!

Thank you. I was looking for a similar question/answer.

 

For anyone searching:

In a Dyna deck, after making a series of beam elements (which are defined by 3 nodes - the from node, the to node, and the orientation node), the default in hypermesh seems to create the beam with a the orientation node coincident with the from node. This causes an error during simulation because the 'k node' lies on the element's X-axis (ie, it doesn't define an orientation at all).

 

I could get the simulation to run by manually changing the orientation node, but couldn't find how to get hypermesh to recognise this. The Analysis > System panel got it working for me.

 

Thanks,

Sven.