×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Efficiency of 2 d.o.f. planetary gear trains

Efficiency of 2 d.o.f. planetary gear trains

Efficiency of 2 d.o.f. planetary gear trains

(OP)
Hello all,
I need to calculate the theorical efficiency of some 2 degrees of freedom planetary gear trains. I have found some different methods, but all of them calculate the efficiency of the basic 2 dof planetary gear train in which the planet link is taken as an input or an output link.
I would like to calculate the efficiency of 2 dof planetary gear trains with 5 and 6 links.
Do you know wich methodology could I use to calculate it?
Regards

RE: Efficiency of 2 d.o.f. planetary gear trains

try "G. Henriot - Planetary gear trains".  He has a complete tratise on the subject.

RE: Efficiency of 2 d.o.f. planetary gear trains

(OP)
Thank you volpegrigia,
Henriot has a method to calculate the efficiency of simple 2 dof planetary gear trains.But unfortunately, the book I have found is in french.
I have calculated the efficiency of four 2 dof simple planetary gear trains using the method of Merritt. This method can be found in his books: Gears and Gear Trains.
A simple 2 dof planetary gear train, takes 2 sun gears and the carrier as the input/output links.
Now I need to calculate the efficiency of two compound 2 dof planetary gear trains. A compound planetary gear train is an assembly of two simple gear trains. On it, the carrier is not an input/output link and it belongs to both of the simple gear trains. I have thought to calculate the efficiency of the compound train, mutiplying the efficiency of the two simple trains independently, but I think that that can`t be done.
Do you know of any method available to obtain the efficiency of 2 dof compound planetary gear trains?
Regards

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources