WOLFRAM SYSTEMMODELER

LossyGearDemo1

Example to show that gear efficiency may lead to stuck motion

Diagram

Wolfram Language

In[1]:=
SystemModel["Modelica.Mechanics.Rotational.Examples.LossyGearDemo1"]
Out[1]:=

Information

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

This model contains two inertias which are connected by an ideal gear where the friction between the teeth of the gear is modeled in a physical meaningful way (friction may lead to stuck mode which locks the motion of the gear). The friction is defined by an efficiency factor (= 0.5) for forward and backward driving condition leading to a torque dependent friction loss. Simulate for about 0.5 seconds. The friction in the gear will take 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
gear.mode  :  1 = forward rolling
              0 = stuck (w=0)
             -1 = backward rolling

Components (8)

gear

Type: LossyGear

Inertia1

Type: Inertia

Inertia2

Type: Inertia

torque1

Type: Torque

torque2

Type: Torque

DriveSine

Type: Sine

load

Type: Ramp

fixed

Type: Fixed