OPTIMIZATION OF NON-LINEAR MASS DAMPER PARAMETERS FOR TRANSIENT RESPONSE

Jakob Søndergaard Jensen, Boyan S. Lazarov

We optimize the parameters of multiple non-linear
mass dampers based on numerical simulation of transient
wave propagation through a linear mass-spring
carrier structure. Topology optimization is used to obtain
optimized distributions of damper mass ratio, natural
frequency, damping ratio and nonlinear stiffness
coefficient. Large improvements in performance is obtained
with optimized parameters and it is shown that
nonlinear mass dampers can be more effective for wave
attenuation than linear mass dampers.

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