Search found 2 matches

by gilgal77
Thu Jul 19, 2007 4:10 pm
Forum: OpenSees.exe Users
Topic: Response from uniformExcitaion
Replies: 1
Views: 2864

Response from uniformExcitaion

Dear Frank:

You mentioned in the last workshop that the displacement from Multiple Support Excitation is total one but that from uniform Excitation is the relative one.

How about the acceleration from Uniform Excitation?
Is it relative or total acceleration ?

Thank you.
by gilgal77
Fri Mar 23, 2007 8:16 am
Forum: OpenSees.exe Users
Topic: Stiffness proportional damping does not seem to work
Replies: 4
Views: 7781

eta value in uniaxialMaterial Elastic

I tried several times to find out what eta means.

My conclusion is k=(1+i* eta)K. That is the coefficient of histeric damping.

But I'm not sure.