1. WORKSHOP 1 Planetary Gear Sets Modification

3. Workshop Objectives: Software Version: Files Required:
Modify the current planetary model and compare results in post-processor
Get familiar with wizard interface
Software Version:
Adams
Files Required:
Planetary Gear 2.cmd

4. Suggested Exercise Steps
Import start file and run the simulation
Change the number of planet gears
Change the number of teeth and run the simulation
Compare results

5. Step 1. Import start file and run the simulation
To get started: import the initial model:
Open cmd file “Planetary Gear 2”
Run simulation with 10 seconds and 1000 steps.
Save simulation results as “P1”.

6. Step 2. Change the number of planet gears:
Right click “Planet_set_1” in “Gear systems” in model browser, and choose “Modify”.
Click “Next” until you get to the “Geometry” setup window.
Change the number of planet gears from 4 to 3” and then re-create the system to just see the visual effect.

7. Step 3. Change the number of teeth
Next, change the number of teeth for Planetary gear set 1. To do this:
Modify “Planet_set_1” again and change the Number of Teeth, follow the rule:
For example:
Run the simulation with 10 seconds and 1000 steps
Save simulation results as “P2”.

8. Step 4. Compare results
Go to post processor, change Source to “Result Sets”.
Compare results of “GFO_SIMPLIFIED_Ring_Pla_1_Pnanet_set_1” between “P1” and “P2” (which means the contact force between Ring gear and one of the planet gears in Gear set 1).

9. Step 4. Compare results
c. Zoom in the time duration from “0.0 – 0.4” seconds. And compare results of P1(4 planet gears) and P2(3 planet gears)