Development and Parametric Analysis of Vibration System Controlled by Hydraulic Shock Rotary Vibrator

Table 3

Characteristic physical quantities of the vibration waveforms.

Physical quantity	Experiment	Model without pipeline effect		Model with pipeline effect
		Value	Error ratio (%)	Value	Error ratio (%)
Double amplitude	14.77 mm	24.07 mm	62.9	18.67 mm	26.4
Vibrating center	63.59 mm	48.69 mm	23.4	61.13 mm	3.8
Wave peak	70.97 mm	60.72 mm	14.4	70.46 mm	0.7
Wave trough	56.20 mm	36.65 mm	34.8	51.79 mm	7.8
Maximum upward velocity	0.89 m/s	1.33 m/s	49.4	1.02 m/s	14.6
Maximum downward velocity	0.99 m/s	1.33 m/s	34.3	1.01 m/s	3.0