Error message in the msg file -

[RGX124]

Hello,

I do not understand one of the the error message given in the *.msg output. Especially the SDI word. See below.

A REPETITIVE SDI PATTERN OCCURS. CONVERGENCE IS JUDGED UNLIKELY


Any help?

Thanks

Rage

 

[bassmanjax]

SDI = Severe Discontinuity Iteration

Usually means that the solver is struggling to cope with contact somewhere in the model. Check your contact definitions, and maybe look at adding either some contact damping or stabilisation.

Regards

Martin Stokes CEng MIMechE