Experimental Investigation of Vibration Characteristics in a Centrifugal Pump with Vaned Diffuser

Table 2

Vibration intensity at monitoring points M3 and M4 (unit: mm/s).

Direction	Flow rate	M3	M4
X	0.8Qd	0.63	1.27
	1.0Qd	0.56	0.85
	1.2Qd	0.53	0.74
Y	0.8Qd	0.59	0.62
	1.0Qd	0.52	0.53
	1.2Qd	0.41	0.45
Z	0.8Qd	0.63	0.93
	1.0Qd	0.64	0.88
	1.2Qd	0.59	0.83