Gear Box
Gearbox.
Description
The Gear Box represents an ideal, non-planetary gearbox with a fixed gear ratio. The gear ratio is defined as the ratio of the angular speed of the input shaft to the angular speed of the output shaft.
The gearbox is described by the following equations:
,
Where:
-
- is the angular speed of the input shaft.
-
- is the angular speed of the output shaft.
-
- gear ratio.
-
- torque on the input shaft.
-
- power at the input shaft.
-
- power at the output shaft.
Note the minus sign when calculating . One rule of thumb for compiling mechanical models is that power flowing through a port is positive if it is dissipated and negative if the component generates power into the system.
The S and O connections represent mechanical rotational ports associated with the input and output shaft of the box, respectively. The positive directions of the block are from S to the reference point and from the reference point to O.
Ports
S - input shaft
`rotational mechanics
Mechanical rotary port, corresponds to the input shaft.
O is the output shaft
`rotational mechanics
Mechanical rotary port, corresponds to the output shaft.
Parameters
Gear ratio - gear ratio
5.0 (by default)
The ratio of input shaft angular velocity to output shaft angular velocity. It can be either positive or negative.
Initial value of input shaft incoming torque, N-m - initial value of input shaft torque
0.0 (by default)
Initial value of input shaft incoming torque.
Initial value of output shaft incoming torque, N-m - initial value of output shaft torque
0.0 (By default)
Initial value of output shaft incoming torque.