Experimental Inter-Modal Targeted Energy Transfer in a cantilever beam undergoing Vibro-impacts

This work experimentally demonstrates inter-modal targeted energy transfer (IMTET) in a cantilever beam system with vibro-impacts. IMTET is known to achieve non-resonant rapid from low-to-high frequency structural modes mechanical systems. While previous works have computationally demonstrated the efficacy of IMTET, theory and methodology supporting still lacks experimental verification. To address this task, an experiment constructed whereby steel clamped at one end excited other, tips clearances anchored host fixture serve as vibro-impacts (VIs) which induce redistribution within modal space beam. The modeled Euler–Bernoulli discretized by finite element method, VI forces are simulated single-sided dissipative Hertzian contact model. time-responses, dissipation ratios, characteristic decay times measured compared computational models confirm validity theoretical predictions. It found for both model that VIs low high ones which, turn, results substantial reduction time thus confirms practice. diverse potential applications engineering practice then emphasized. • Vibro-impacts dissipation. studied domains. Computational findings support transfer.