Shock and Vibration / 2020 / Article / Fig 14

Research Article

Investigation of Piezoelectric Energy Harvesting via Nonlinear Friction-Induced Vibration

Figure 14

The displacement versus velocity phase trajectory of the friction system in tangential direction (a) and normal direction (b). The velocity versus voltage trajectory of the friction system in tangential direction (c) and normal direction (d) when μk = 1 and μs = 1.2.
(a)
(b)
(c)
(d)

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