yasaraw
Structural
- Apr 1, 2011
- 6
Hi all,
I try to use constraint equations to connect 2 nodes(actually to give relative displacement) using constraint equations.
This is a transient analysis,which i am restarting the analysis to introduce several load steps.
I can use constraint equations in one load step, and then I try to restart the analysis and program gives a error massage saying "constraint equation 1 does not exist. CECMOD is ignored"
whats the meaning of this?how can I overcome this?even I delete the constraint equation I can not restart it after that.
what can I do?
Thank you
I try to use constraint equations to connect 2 nodes(actually to give relative displacement) using constraint equations.
This is a transient analysis,which i am restarting the analysis to introduce several load steps.
I can use constraint equations in one load step, and then I try to restart the analysis and program gives a error massage saying "constraint equation 1 does not exist. CECMOD is ignored"
whats the meaning of this?how can I overcome this?even I delete the constraint equation I can not restart it after that.
what can I do?
Thank you