Hello,
I wonder how I can model a TMD (tuned mass damper) on my bridge?
The TMD as you know is composed of a mass, springs and dampers.
Should I model it simply by a spring and a concentrated mass? or there is a special function or some other rules to respect !?
In this situation how can we determinate eigenvalues considering the damping of the structure + that of TMD ?
Can you send me please any example of TMD study?
Thanks,
Hello
Yes, a tuned mass damper can be modeled by a spring (SOFiMSHA SPRI) and a mass (SOFiMSHA MASS). The damping of the spring can be defined in lateral (DT) or axial direction (DP).
The eigenvalues can be calculated with the command “EIGE” in DYNA.
Here a short example for a passive TMD:
https://sofistik-my.sharepoint.com/:u:/g/personal/jfh_nbg_sofistik_de/EVTv0v-PZadJl56SgUPMGbIBR6lFKSjJ2c4dLPc-qtqCjg?e=wq4BRA
Best regards
Frederik Höller
Your SOFiSTiK Support Team
Dear Frederic, please repeat link for your example.
Present is not available.
Thanks,
Regards,
Yuri Ilyin
Dear Frederik, this is exactly, what I’m looking for to compare to my model. Can you please share again the link? Thank you, Konrad