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Table 1 Hydraulic parameters and structure parameters of height control system

From: Integrated Optimization of Structure and Control Parameters for the Height Control System of a Vertical Spindle Cotton Picker

Parameter Value Unit
Engine rated speed 2200 r/min
Rated displacement of pump 90 mL/min
Rated pressure of pump 40 MPa
Speed of pump 2000 r/min
Rated current of servo valve 200 mA
Rated flow of servo valve 75 mL/min
Natural frequency 50 Hz
Damping ratio 1  
Servo amplifier gain 250  
Overflow pressure of overflow valve 16 MPa
G 20000 N
L2 850 mm
L3 750 mm
L4 1000 mm