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modeling a damper with COMBIN37

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andreamordini

Structural
Jun 2, 2006
34
Hi all,

I model a damper for a time history analysis with the law F=C v^0.015 with the COMBIN37 element.
Therefore, I insert in the real constants C1=C and C2=-0.985.
the analysis doesn't converge. If I use C2>=0 the analysis works.
Any idea or previous experience on the topic?

andrea

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Dr. Andrea Mordini
Civil Engineer
Ph.D. in Structural Mechanics
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