Analysis on Multimode Nonlinear Resonance of an Asymmetric Rolling Bearing Rotor with the Application of a Squeeze Film Damper

Table 2

The quasi-periodic frequency with different numbers of balls.

Number of balls	Quasi-periodic frequency
	(1) , ; (2) , ; (3) , ; (4) ,
	(1) , ; (2) , ; (3) , ; (4) , ; (5) , ; (6) , ; (7) ,
	(1) , ; (2) , ; (3) , ; (4) , ; (5) ,