Automotive Compound Epicyclical gear system

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The discussion revolves around calculating a 1:12 gear ratio using epicyclical gears, with participants sharing resources and equations. A helpful link to a PDF on planetary gear systems was provided, emphasizing the complexity and variety of configurations in epicyclical gear trains. The original poster ultimately found an alternative solution due to time constraints. The community expressed interest in learning about the alternative method used. Overall, the conversation highlights the challenges of working with epicyclical gears and the collaborative nature of problem-solving in engineering.
Imhotep ME Student
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Trying to calculate how to produce a 1:12 ratio gear train with epicyclical gears. Can anyone send some equations or links to help explain how to do this? I have looked in textbooks and online and found many examples of achieving this with a simple compound spur gear train with 3 or less stages but nothing on how it works with epicyclical gears in series.
 
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There are many possible configurations for a planetary train, and no single description fits them all. Baluncore has sent you a good link, but it is not exhaustive. You need to narrow the range of what you want to investigate, then maybe ask more questions if necessary.
 
Thanks to all who took time out to reply.
In the end we ran out of time and found another way to solve the issue
Figured i'd keep you updated :)
 
Imhotep ME Student said:
...and found another way to solve the issue
Would you be so kind as to let us know what you did? Afterall, we like to learn too. Thanks.
 
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