Study on Nonlinear Energy Pumping of the Vibration System with Cubic Damping Absorber
The nonlinear energy pumping in a two-degree-of-freedom system comprising a damped linear oscillator coupled to cubic damping absorber is studied. It is verified that the nonlinear pumping energy can be performed by cubic damping absorber besides cubic stiffness absorber. The resonance capture is verified by time-frequency analysis (Hilbert Transform). The energy pumping efficiency is put forward for quantitative analysis, and the optimal parameters of system are obtained. The amplitude of main oscillator can be attenuated in a very short duration. The result may be significative for engineering implementation.
Shengyi Li, Yingchun Liu, Rongbo Zhu, Hongguang Li, Wensi Ding
S. M. Tang et al., "Study on Nonlinear Energy Pumping of the Vibration System with Cubic Damping Absorber", Applied Mechanics and Materials, Vols. 34-35, pp. 1243-1247, 2010