Wheel Axle
Converts rotational motion to translational motion
Description
Connections
Variables
Parameters
Initial Conditions
See Also
Important: The Wheel Axle component has been deprecated. Instead, use Ideal Rolling Wheel component.
The Wheel Axle component models an ideal wheel, without mass or inertia, that transforms 1-D rotational motion into 1-D translational motion depending on the wheel radius.
τR = r ⋅fT ⋅ dir
s.T = r ⋅ φ.R ⋅ dir
The value of the parameter dir is equal to 1 if a positive rotation produces a positive displacement at tflange . If the direction is reversed, dir is equal to -1.
Name
Modelica ID
rflange
Rotational connection
tflange
Translational connection
Symbol
Units
τR
N⋅m
Torque at rflange
φR
rad
Angle of rflange
fT
N
Force at tflange
sT
m
Position of tflange
Default
r
0.05
Radius of the wheel.
dir
1
-
Direction of the wheel. This is either 1 or -1.
ω0
Initial or guess value of the angular velocity, ω=derφ
omega(0)
sr0
Initial position of tflange
sr(0)
Fr0
Initial force out of tflange
Fr(0)
Tc0
Initial torque at rflange
Tc(0)
Common Rotational Components
1-D Mechanical Overview
Download Help Document