Research on the Effects of Hydropneumatic Parameters on Tracked Vehicle Ride Safety Based on Cosimulation

Table 2

Suspension initial value of the design variables.

Variable	Symbol	Unit	Value
Length of axle arm		m	0.40
Crank radius		m	0.21
Road wheel diameter		m	0.60
Angle of the axle arm from at the static position		deg	−14.0
Initial angle of the axle arm from		deg	−28.0
Angle of the axle arm from at the top end		deg	30.0
Designed displacement of the road wheel		m	0.39
Designed stroke of the actuation cylinder		m	0.20
Section area of the actuation cylinder		m^2	4.4 × 10^−3
Working pressure of the actuation cylinder		Pa	Variable
Standard atmosphere pressure		Pa	1.01 × 10^5
Displacement of the road wheel		m	Variable
The axis position of the piston		m	Variable
Velocity of the actuation cylinder		m/s	Variable
Differential pressure of the hydraulic restrictor		Pa	Variable
Angle of the axle arm from		deg	Variable
Angle of the crank from		deg	Variable
The angle between the crank and the actuation cylinder		deg	Variable
The gas polytrophic exponent		—	1.3