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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