Performance of a New Fine Particle Impact Damper

Figure 7

Tip displacement of the cantilevered beam with single unit impact damper (▴), FPID with r_p  =  10% of copper particles (◊), FPID with r_p  =  20% of copper particles (■), FPID with r_p  =  40% of copper particles (◆), FPID with r_p  =  60% of copper particles (◊) and FPID with r_p  =  80% of copper particles (△), at the same harmonic excitation.