An Experimental Investigation of Churning Power Losses of a Gearbox

[+] Author and Article Information
Joseph Polly

The Ohio State University, Columbus, OH 43210

David Talbot

The Ohio State University, Columbus, OH 43210

Ahmet Kahraman

The Ohio State University, Columbus, OH 43210

Avinash Singh

General Motors Powertrain, Pontiac, MI 48390

Hai Xu

General Motors Powertrain, Pontiac, MI 48390

1Corresponding author.

ASME doi:10.1115/1.4038412 History: Received September 08, 2017; Revised October 30, 2017


In this study, load-independent (spin) power losses of a gearbox operating under dip-lubrication conditions are investigated experimentally using a final-drive helical gear pair from an automotive transmission as the example system. A dedicated gearbox is developed to operate a single gear or a gear pair under given speed and temperature conditions. A test matrix that consists of sets of tests with (i) a single spur, helical gears, or disks with no teeth, and (ii) helical gear pairs is executed at various temperatures, immersion depths and pinion positions relative to its mating gear. Power losses from single gear and gear pair at identical operating conditions are compared to quantify the components of the total spin loss in the form of losses due to gear drag, gear mesh pocketing, and bearings and seals.

Copyright (c) 2017 by ASME
Your Session has timed out. Please sign back in to continue.






Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In