MATLAB: Where is the planetary gear block in simulink/how can i make one

Question

Hello,

I'm trying to replicate this example: https://nl.mathworks.com/videos/modeling-losses-in-a-planetary-gear-68819.html . The problem is that I can't find the planetary gear block (see 1) and don't know how to make it with other blocks. If it's possible it'd be great to have one with 3 planet gears instead of 4. (sun and planet 17 teeth and the ring 51) The goal is to compare the efficiency of our normal gearbox with a planetary system with the same ratio's.

Thanks in advance, Kevin

(I have matlab r2018a and matlab r2016a)

(1) (https://nl.mathworks.com/help/physmod/sdl/ref/planetarygear.html)

Answer 1

Hi,

you find the gear (and some other types of gears) in the model library:

.

Another way is to build it by yourself using the components like described in the documentation link you provided:

You find the needed components like shown in the attached picture and you find how to mount them in the documentation link above (also in the picture at the bottom).

Best regards

Stephan