Compound Epicyclical gear system

  • Context: Automotive 
  • Thread starter Thread starter Imhotep ME Student
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    Gear System
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Discussion Overview

The discussion centers around the challenge of calculating a 1:12 gear ratio using a compound epicyclical gear system. Participants explore the theoretical and practical aspects of achieving this ratio, particularly in the context of epicyclical gears as opposed to simpler gear trains.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested, Homework-related

Main Points Raised

  • One participant seeks equations or resources to understand how to create a 1:12 ratio gear train using epicyclical gears, noting a lack of examples in existing literature.
  • Another participant provides a link to a resource that may assist in understanding epicyclical gear systems, but acknowledges that it may not cover all configurations.
  • A third participant points out the variety of configurations possible in planetary gear trains and suggests that the original poster should narrow their focus for more effective inquiry.
  • A later reply indicates that the original poster found an alternative solution to their problem but does not elaborate on what that solution was.
  • Another participant expresses interest in learning about the alternative solution discovered by the original poster.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the best approach to achieve the desired gear ratio, and multiple perspectives on the complexity of epicyclical gear systems are presented.

Contextual Notes

The discussion reflects limitations in the available resources and the need for more specific inquiries regarding configurations of epicyclical gears. There is also an indication of unresolved steps in the original poster's problem-solving process.

Who May Find This Useful

Individuals interested in mechanical engineering, gear design, or those working on projects involving epicyclical gear systems may find this discussion relevant.

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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