Bursting Oscillation Mechanisms of a Desktop Medical Shaker with Eccentric Turntables Affected by Dry Friction

Table 2

Physical significance of each mathematical symbol related to the governing equations.

Mathematical symbol	Physical meaning
M	Mass of the oscillator
x	Displacement of the oscillator
c	Damping coefficient
	Stiffness parameters of nonlinear spring
	Horizontal component force of eccentric shaft acting on the rotary table
m	Mass of the eccentric rotary table
	Horizontal component of friction force exerted by the eccentric rotary table on the oscillator
	Acceleration of mass center of the rotary table
	Horizontal component of acceleration of mass center of the rotary table
	Acceleration of point O
	Relative acceleration of point O to centroid C
	Tangential components of
	Normal components of
	Angular acceleration of the turntable
	Angular velocity of the turntable