How can opensees extract the mass matrix and the stiffness m

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xiaojack
Posts: 16
Joined: Thu Oct 12, 2017 7:42 pm

How can opensees extract the mass matrix and the stiffness m

Post by xiaojack »

How can opensees extract the mass matrix and the stiffness matrix? Vibration mode？
How do I use the leadrubberx unit in the 2 dimension 3 degrees of freedom in opensees?
This question has been bothering me for days. Thank you for your help.
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