Experimental and Numerical Vibration Analysis of Hydraulic Pipeline System under Multiexcitations

Table 1

The specification of testing instruments and experimental apparatus.

System	Item	Description	Remarks
Experimental apparatus	Motor	YX3-180M	Power 18.5 kW
	Pump	MCY14-1B	Pressure rating 31.5 MPa; Rotational speed 0–2000 r/min
	Shaker	ES-10G	Force range 0–10 kN; Frequency range 5–5000 Hz
	Frequency converter	SD100-4T-18.5 GC	Power 18.5 kW
	Throttle valve	DVP16-1-10B	Pressure range 0–35 MPa
	Relief valve	ZDB10VP-1-40B	Pressure range 0–31.5 MPa
Measuring instruments	Accelerometer	PCB-352C22	Resolution 0.004 ,; Frequency range 1–13000 Hz
	Pressure pulsation sensor	CY-YD-205	Pressure range 0–30 MPa,; Resolution 1 Pa
	Amplifier	YB5850	Gain 0.01–1000 mV/pC; Output ±10 V
	Dynamic analyzer	NI PXIe-4499	16 inputs, 24 bits,; 204.8 kS/s