engleski

OPTIMAL SELECTION OF A TWO-SPEED TWO-CARRIER PLANETARY TRAIN

This paper considers two-speed planetary gear trains with four external shafts, composed of two simple planetary gear trains. A method of optimal selection of a two-speed two-carrier planetary train according to several criteria is presented. The shown methodology enable quick determining of structure and base parameters of two-speed PGT which can satisfy transmission requirements. These transmissions have significant application in systems which require speed change under load. The example of selection of optimal two-speed PGT is given and its structural and kinematic scheme is formed. The shown methodology enable next step in PGT optimization: application of multicriteria optimization to the chosen PGT in order to define design parameters.

two-speed planetary gear trains, transmission ratio, ideal torque ratio

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