Modeling and Analysis on Cushion Characteristics of Fast and High-Flow-Rate Hydraulic Cylinder

Table 1

Main parameters in simulation calculation.

Parameters	Value
Density of oil (kg/m^3)	850
Dynamic viscosity of oil (Pa⋅s)	0.025
Bulk modulus of elasticity (MPa)	700
Supply pressure of oil (MPa)	32.6
Diameter of main pipeline (mm)	0.04
Discharge coefficient of the sudden contraction of the flow channel	0.731
Discharge coefficient of the sharp edge throttling	0.67
Initial volume of cushion chamber (m^3)	0.0033
External diameter of piston (m)	90
Diameter of piston (m)	45
Stroke of cylinder (m)	0.23
Effective bearing pressure area of working chamber (m^2)	0.0048
Effective bearing pressure area of cushion chamber (m^2)	0.0035