I want to simulate two elastically connected beams. The first beam is hinged to the ground with a rotation spring. The second beam is pinned with the first beam with a roation spring as well. The schematic diagram is shown below.
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I use the pinned joint and spring foundation to simuate the first joint. For the second joint, I add two attachment in the two beams' end. The first attachment is at the right end of the first beam. The second attachment is at the left end of the second beam. The setting of my model is in the Attachments of this post.
When I solve this model, the error message shows that
Undefined variable. - Variable: comp1.beam.att1.phi - Global scope Failed to evaluate Jacobian of expression. - Expression: comp1.mbd.hgj1.uc_src-comp1.mbd.hgj1.uc_dest -
Could you please tell me the possible reason for the error?
With best regards.
