A Method of Reducing Motor Vibration: Natural Frequency, Damping Ratio, and Vibration Analysis of CFRP Motor Frame

Table 5

Reduction rate of vibration acceleration of the CFRP frame motor.

Rotating speed (r/min)	Reduction of vibration acceleration
	Sensor 1 on the base (%)	Sensor 2 on the cylinder (%)	Sensor 3 on the cylinder (%)	Sensor 4 on the cylinder (%)
1000	132	197	34	66
1100	108	237	38	107
1200	159	519	22	45
1300	115	493	18	42
1400	156	268	35	30
1500	168	322	30	24