Precisely defined nonzero initial conditions

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ssami
Posts: 68
Joined: Tue Dec 17, 2013 5:10 am

Precisely defined nonzero initial conditions

Post by ssami » Thu Dec 07, 2017 6:52 am

Hi everyone
I have a two degree of freedom system with nonzero initial displacements and velocities different at the two degrees of freedom. How I can analyze the free vibration of the system using time history analysis by defining Precisely initial conditions in OpenSees? Many thanks for your kind attention.
Best Wishes,
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selimgunay
Posts: 913
Joined: Mon Sep 09, 2013 8:50 pm
Location: University of California, Berkeley

Re: Precisely defined nonzero initial conditions

Post by selimgunay » Thu Dec 07, 2017 9:48 pm

First you can do a pushover analysis that takes you to the initial displacements and run the free vibration analysis afterwards.
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