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Research Papers

Enumeration of Feasible Clutching Sequences of Epicyclic Gear Mechanisms

[+] Author and Article Information
Shaker S. Hassan

 University of Technology, Baghdad, 0964 Iraqshaker.sakran@yahoo.co.uk

J. Mech. Des 132(7), 071002 (Jun 09, 2010) (8 pages) doi:10.1115/1.4001527 History: Received April 05, 2009; Revised March 30, 2010; Published June 09, 2010; Online June 09, 2010

A new methodology for enumeration of feasible clutching sequences of epicyclic gear mechanism (EGM) composed of two or more fundamental gear entities is presented. The method relies on previous work on algorithmic technique. It improves on existing techniques used for automatic transmission mechanisms in its ability to accurately solve the kinematics of geared mechanisms and estimating their velocity ratios and arranging them in a descending order in a simpler manner without depending on certain gear sizes. Twelve velocity-ratio-relations are derived for any four coaxial links of an epicyclic gear train. These velocity-ratio-relations are three more than the nine relations given in literature. In addition, the velocity ratios can be arranged in a descending sequence without using complicated artificial intelligence technique or complicated computer algorithm. The present methodology is judged to be more efficient for enumeration of all feasible clutching sequences of an EGM.

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Copyright © 2010 by American Society of Mechanical Engineers
Topics: Velocity , Gears , Trains
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Figures

Grahic Jump Location
Figure 1

A typical transmission mechanism

Grahic Jump Location
Figure 2

Type-8001 gear train

Grahic Jump Location
Figure 3

Functional representation of type-8001 gear train, family 3

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