Modal Analysis problem
Modal Analysis problem
(OP)
Hello everyone,
I'm trying to build a modal model, which I will solve and finish. I will then begin a spectrum analysis to apply a vibration.
However to do this I need file and database requirments with the same model which the modal solution was calculated.
So far I only have .db files. I need .MODE, .RST, .LN22, .EMAT, .ESAV, and .FULL files.
So I went into:
file<save as< jobname.db
file<save as< jobname.MODE
file<save as< jobname.RST
file<save as< jobname.LN22
etc.
When I then try to solve my program I get this, "unexpected error(SIG$SEGV) has occurred. ANSYS unable to recover and terminates".
I'm pretty sure this is happening due to saving the .RST, .MODE etc, files. So how do I get these files as database requirements without causing termination of program.
I would appreciate any help available.
I'm trying to build a modal model, which I will solve and finish. I will then begin a spectrum analysis to apply a vibration.
However to do this I need file and database requirments with the same model which the modal solution was calculated.
So far I only have .db files. I need .MODE, .RST, .LN22, .EMAT, .ESAV, and .FULL files.
So I went into:
file<save as< jobname.db
file<save as< jobname.MODE
file<save as< jobname.RST
file<save as< jobname.LN22
etc.
When I then try to solve my program I get this, "unexpected error(SIG$SEGV) has occurred. ANSYS unable to recover and terminates".
I'm pretty sure this is happening due to saving the .RST, .MODE etc, files. So how do I get these files as database requirements without causing termination of program.
I would appreciate any help available.





RE: Modal Analysis problem
www.priamengineering.co.uk
RE: Modal Analysis problem
RE: Modal Analysis problem
www.priamengineering.co.uk
RE: Modal Analysis problem
I was using black lancoz but have now changed to supernode, I completed my modal solution and began a spectrum analysis with no problems today but when I solved the the spectrum analyses the program crashed. I have to enter a power spectrum density(psd) vs frequnecy table to complete the vibration signal, if this was incorrect could that cause the error previously mentioned and termination of program?
I havn't changed the jobname throughout the analyses.
Again, many thanks for your help.