Efficiency analysis of two degrees of freedom epicyclic gear transmission and experimental validation

Chao Chen, Jiabin Chen

Research output: Contribution to journalArticleResearchpeer-review

Abstract

A complete method based on constraint analysis and virtual power is developed in this work. The method is applied to a two-dof epicyclic gear transmission for efficiency modelling and prediction. The power flow diagrams are constructed to obtain possible power flow patterns and to verify the balance of normal power flow and virtual power flow within the system. The theoretical efficiency formulas were derived for the full working range, and further verified by experimental data. It was found that two local loss factors are always coupled together in this device under test, and the same speed ratio may yield different efficiencies depending on the directions of the input angular velocities.
Original languageEnglish
Pages (from-to)115 - 130
Number of pages16
JournalMechanism and Machine Theory
Volume87
DOIs
Publication statusPublished - 2015

Cite this

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Efficiency analysis of two degrees of freedom epicyclic gear transmission and experimental validation. / Chen, Chao; Chen, Jiabin.

In: Mechanism and Machine Theory, Vol. 87, 2015, p. 115 - 130.

Research output: Contribution to journalArticleResearchpeer-review

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AB - A complete method based on constraint analysis and virtual power is developed in this work. The method is applied to a two-dof epicyclic gear transmission for efficiency modelling and prediction. The power flow diagrams are constructed to obtain possible power flow patterns and to verify the balance of normal power flow and virtual power flow within the system. The theoretical efficiency formulas were derived for the full working range, and further verified by experimental data. It was found that two local loss factors are always coupled together in this device under test, and the same speed ratio may yield different efficiencies depending on the directions of the input angular velocities.

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