Numerical optimization of tuned mass absorbers attached to strongly nonlinear Duffing oscillator

• We show the optimization of tuned mass absorbers attached to Duffing oscillator.
• We consider three different types of tuned mass absorbers.
• Careful choice of parameters leads to a decrease of Duffing system’s amplitude.
• The best damping properties can be achieved with dual-pendulum tuned mass absorber.

We investigate the dynamics of the vertically forced Duffing oscillator with suspended tuned mass absorber. Three different types of tuned mass absorbers are taken into consideration, i.e., classical single pendulum, dual pendulum and pendulum-spring. We numerically adjust parameters of absorbers to obtain the best damping properties with the lowest mass of attached system. The modification of classical case (single pendulum) gives the decrease of Duffing system amplitude. We present strategy of parameters tuning which can be easily applied in a large class of systems.