Planetary Gear Testrig

This example models a planetary gear with three planets. The planetary gear has three mechanical connections: sun gear, carrier, and ring gear. Driving and locking different pairs of shafts will produce different movements.

Contents

Model

Planetary Gear Subsystem

This subsystem shows the parts, joints, and gear constraints used to model the planetary gear.

Open Subsystem

Carrier Gear Subsystem

This subsystem shows the used to model the carrier, which connects the planets.

Open Subsystem

Sun Shaft Input Subsystem

This subsystem models the input to each shaft. Signals control the torque applied to the shaft and the enabling of a brake.

Open Subsystem

Simulation Results from Simscape Logging

The plot below shows the speeds of the three shafts attached to the planetary gear as different pairs of shafts are driven and locked.