2-DOF Tuned Mass Damper (TMD)

Vibration absorption via harmonic tuning of a secondary mass.

Mass ($m_1$) 100 kg

Stiffness ($k_1$) 2000 N/m

Damping ($c_1$) 10 Ns/m

Natural Freq (ω_n1): 4.47 rad/s

Mass ($m_2$) 10 kg

Stiffness ($k_2$) 200 N/m

Damping ($c_2$) 5 Ns/m

Natural Freq (ω_n2): 4.47 rad/s

Excitation Freq ($\omega$) 4.5 rad/s

Force Amplitude ($F_0$) 500 N

Tip: Tune m_2 and k_2 so that ω_n2 ≈ ω to minimize building vibration.