WOLFRAM SYSTEMMODELER

LossyGearDemo2

Example to show combination of LossyGear and BearingFriction

Diagram

Wolfram Language

In[1]:=
SystemModel["Modelica.Mechanics.Rotational.Examples.LossyGearDemo2"]
Out[1]:=

Information

This information is part of the Modelica Standard Library maintained by the Modelica Association.

This model contains bearing friction and gear friction (= efficiency). If both friction models are stuck, there is no unique solution. Still a reliable Modelica simulator should be able to handle this situation.

Simulate for about 0.5 seconds. The friction elements are in all modes (forward and backward rolling, as well as stuck).

You may plot:

Inertia1.w,
Inertia2.w          : angular velocities of inertias
powerLoss           : power lost in the gear
bearingFriction.mode:  1 = forward rolling
                       0 = stuck (w=0)
                      -1 = backward rolling
gear.mode           :  1 = forward rolling
                       0 = stuck (w=0)
                      -1 = backward rolling

Note: This combination of LossyGear and BearingFriction is not recommended to use, as component LossyGear includes the functionality of component BearingFriction (only peak not supported).

Components (9)

gear

Type: LossyGear

Inertia1

Type: Inertia

Inertia2

Type: Inertia

torque1

Type: Torque

torque2

Type: Torque

DriveSine

Type: Sine

load

Type: Ramp

bearingFriction

Type: BearingFriction

fixed

Type: Fixed