In this paper, results from an experimental study on power losses of planetary gear sets are presented. The experimental setup includes a specialized test apparatus to operate a planetary gear set under tightly controlled speed, load and oil temperature conditions, and instrumentation for an accurate measurement of power losses. The test matrix consisted of gear sets having three–six planets under loaded and unloaded conditions in order to separate load independent (spin) and load dependent (mechanical) power losses. The test matrix also included tests with planet gears having two levels of tooth surface roughness amplitudes as well as tests at varying oil inlet temperature. The results clearly indicate that spin power loss decreases with both reduction of number of planets and increase in oil temperature. Meanwhile, the mechanical power loss decreases with a decrease in oil temperature and reduction in gear surface roughnesses. Results also indicate that mechanical losses can be described by the power transmitted and lost by each planet branch.
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e-mail: talbot.11@osu.edu
e-mail: kahraman.1@osu.edu
e-mail: avinash.singh@gm.com
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February 2012
Research Papers
An Experimental Investigation of the Efficiency of Planetary Gear Sets
David C. Talbot,
David C. Talbot
Department of Mechanical and Aerospace Engineering,
e-mail: talbot.11@osu.edu
The Ohio State University
, 201 W 19th Avenue, Columbus, OH 43210
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Ahmet Kahraman,
Ahmet Kahraman
Department of Mechanical and Aerospace Engineering,
e-mail: kahraman.1@osu.edu
The Ohio State University
, 201 W 19th Avenue, Columbus, OH 43210
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Avinash Singh
Avinash Singh
General Motors Powertrain,895 Joslyn Avenue, Building C,Pontiac, MI 48390
e-mail: avinash.singh@gm.com
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David C. Talbot
Department of Mechanical and Aerospace Engineering,
The Ohio State University
, 201 W 19th Avenue, Columbus, OH 43210e-mail: talbot.11@osu.edu
Ahmet Kahraman
Department of Mechanical and Aerospace Engineering,
The Ohio State University
, 201 W 19th Avenue, Columbus, OH 43210e-mail: kahraman.1@osu.edu
Avinash Singh
General Motors Powertrain,895 Joslyn Avenue, Building C,Pontiac, MI 48390
e-mail: avinash.singh@gm.com
J. Mech. Des. Feb 2012, 134(2): 021003 (7 pages)
Published Online: February 3, 2012
Article history
Received:
June 14, 2011
Revised:
November 1, 2011
Published:
February 3, 2012
Citation
Talbot, D. C., Kahraman, A., and Singh, A. (February 3, 2012). "An Experimental Investigation of the Efficiency of Planetary Gear Sets." ASME. J. Mech. Des. February 2012; 134(2): 021003. https://doi.org/10.1115/1.4005599
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