Epicyclic gear transmissions have many applications. The internal power flow of epicyclic systems is highly related to the power loss of the system. A systematic method and generic formulas based on kinematic constraints are derived to conduct the power flow analysis, by means of Lagrange multipliers and newly introduced selection matrices. The method and formulas can be readily applied to complicated epicyclic systems. The graphic representation of the power flow of two examples verifies the balance of the power flow and virtual power flow. In the example of the Dual-E powertrain for hybrid electrical vehicles, an estimation of the total efficiency is derived. The pattern of contour maps of the total efficiency indicates the operational ranges of the powertrain with relatively low power losses.
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e-mail: chao.chen@monash.edu
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November 2012
Research Papers
Power Analysis of Epicyclic Transmissions Based on Constraints
Chao Chen
Chao Chen
Department of Mechanical and Aerospace Engineering,
e-mail: chao.chen@monash.edu
Monash University
, Clayton, Victoria, 3800 Australia
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Chao Chen
Department of Mechanical and Aerospace Engineering,
Monash University
, Clayton, Victoria, 3800 Australia
e-mail: chao.chen@monash.edu
J. Mechanisms Robotics. Nov 2012, 4(4): 041004 (11 pages)
Published Online: September 4, 2012
Article history
Received:
December 19, 2011
Revised:
March 31, 2012
Published:
August 31, 2012
Online:
September 4, 2012
Citation
Chen, C. (September 4, 2012). "Power Analysis of Epicyclic Transmissions Based on Constraints." ASME. J. Mechanisms Robotics. November 2012; 4(4): 041004. https://doi.org/10.1115/1.4007308
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