Nonlinear-frequency-matching of the centrifugal distance for optimizing the rotating-frequency-range by stabilizing nonlinear oscillations

抄録

With the purpose of improving the capacity of energy harvesting, the nonlinear system has better advantages in terms of the effectively operational bandwidth, especially by considering the effect of centrifugal effect, and the bandwidth of the sustainable harvesting can be further expanded. However, the different centrifugal distances of the installation position have different effects for stabilizing the high-energy orbit oscillation, and the optimal installation centrifugal depends on the variety of the corresponding physical characteristics. Therefore, in this paper, the relationship of nonlinear-frequency-matching between the jump-down frequency of monostable state and the rotating frequency of external circumstance are utilized to theoretically solve the optimal location distance for different parameters. The simulation result of velocity responses demonstrates that the solution of optimal centrifugal distance is verified for effectively broadening the frequency range of energy harvesting.