Investigation of Piezoelectric Energy Harvesting via Nonlinear Friction-Induced Vibration

Table 2

The values of friction coefficients and the corresponding Eps in these three cases.

Case				Eps (xe, ye)
1	0.4	0.6	0.85	(−0.00216, −0.0258)
2	0.7	0.9	0.85	(0.00104, −0.0246)
3	1	1.2	0.85	(0.00397, −0.0235)