Realization of the Ultrasonic Motor Speed Control System Based on H-Bridge

Table 1

Vibration particle parameters.

Name	Meaning	Value	Name	Meaning	Value
m	Equivalent mass	0.112 kg	A	Stiffness coefficient	1.76 × 10^−10
ds	Damping coefficient	580.8 Ns/m	c1	Modal hardness	5.0371 × 10^9
e	Asymmetry factor	0.02	c2	Modal hardness	4.991 × 10^9
cc	Elastic coefficient of PZT	2.3589 × 10^9