Potential of a vibro-impact nonlinear energy sink for energy harvesting

• A new energy harvester using vibro-impact nonlinear sink is proposed. Vibro-impact induced targeted transfer improves significantly the efficiency. The optimal harvesting efficiency resides in regimes with 1–2 impacts per cycle. VINES provides high density and robust over a certain level of noise. potential (VINES) investigated. Applying Signorini’s contact law, non-smooth dynamics first formulated measure differential complementarity problem treated Moreau-Jean scheme adapted an energy-conserving integration method. resulting thus shows good preservation property, allowing one to calculate flow system precision. Exhaustive discussions are then carried out regarding performance proposed harvester, as well their dependence on underlying response regimes, under both transient steady-state responses. It demonstrated that responsible for achieving or controlling response, improve Moreover, properly designed VINES, working cycle, capable effective broadband wide amplitude frequency range. Two specific considerations also performed evaluate further generality efficacy it proved can provide higher than classical linear cubic NES harvesters, its effectiveness could be low