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ASTM Manuals
Automotive Lubricants and Testing
By
Simon C. Tung,
Simon C. Tung
EDITOR
1Dr. Simon C. Tung has become an internationally recognized
leader in the field of tribology and lubrication engineering
as a result of 26 years of industrial applied research and project management with General Motors
and through his service to the tribology technical community. Tung has been involved in the original engine manufacturers (OEM) and automotive industry since joining General Motors Research laboratories
in 1982. While there he led pioneering research and development on automotive powertrain tribology and lubrication engineering and was appointed a technical fellow
at the General Motors Research and Development Center
in 2003. In 2008, he joined the Industrial Technology Research Institute (ITRI)
as General Director
, where he was responsible for managing all research and development programs in the green energy and environmental research laboratories. He made significant contributions in the research areas of green energy, energy storage systems, hydrogen energy, energy efficient fuels and lubricants, and greenhouse emissions reduction. Dr. Tung's technical expertise includes energy technology, environmental engineering, lubrication, and automotive systems. He has over 180 published works and holds more than 30 U.S. and international patents on novel methods of improving energy efficiency and environmental protection. Dr. Tung has received many distinguished honors, including being named Fellow of the Society of Automotive Engineers (SAE)
and Fellow in the Society of Tribologists and Lubrication Engineers (STLE)
, as well as receiving the highest honor of Gold Award from the Engineering Society of Detroit (ESD)
. In addition, he has received 25 professional outstanding achievements awards during his career. He was recently honored with SAE International's Edward N. Cole Award for Automotive Engineering Innovation during the SAE 2011 World Congress. In August 2011, Dr. Tung was appointed the global OEM industry liaison manager
by R.T. Vanderbilt
. In this new capacity, Dr. Tung leads global OEM liaison activities by developing and disseminating global OEM advanced lubricant requirements and energy resources technologies. In addition, he assists in advancing tribology and lubricant technology programs at R.T. Vanderbilt
. He is also responsible for developing methods and providing technical input for the testing and evaluation of fuel efficient lubricant products for potential commercialization. Dr. Tung holds a Ph.D. in chemical engineering from Rensselaer Polytechnic Institute. He also received an MBA from University of Michigan-Ann Arbor.
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George E. Totten
George E. Totten
EDITOR
2Dr. George E. Totten is
president
of G.E. Totten & Associates, LLC
, a research, sales, and consulting firm specializing in thermal processing, industrial lubrication problems, and equipment supply. In addition, he is a visiting professor
at the University of Sao Paulo
, an adjunct professor
at Texas A&M University
, and a research professor
at Portland State University
. Until his retirement in 2001, Dr. Totten was a senior research scientist at Union Carbide Corporation, where he was responsible for their research and development programs in metalworking quenchants, hydraulic fluids, and exploratory research programs in lubrication fundamentals. Dr. Totten is the section chairman
of ASTM D02 L.06 on Non-Lubricating Oils and is a member of the ASTM committee on publications. Dr. Totten has published over 600 patents, technical papers, and books, including: Handbook of Quenchants and Quenching Technology, Steel Heat Treating Handbook (volumes 1 and 2), Handbook of Residual Stress and Deformation of Steel, Fire Resistance of Industrial Fluids (ASTM STP 1284), Tribology of Hydraulic Pump Testing (ASTM STP 1310), Handbook of Hydraulic Fluid Technology and Hydraulic Failure Analysis: Fluids, Components and System Effects (ASTM STP 1339), Bench Testing of the Lubrication and Wear Properties of Industrial Fluids Used in Machinery Applications (ASTM STP 1404), and Handbook of Aluminum: Physical Metallurgy and Processes (Volumes 1 and 2, and volume one of Handbook of Lubrication and Tribology: Application and Maintenance, Second Edition. Dr. Totten received B.S. and M.S. degrees in chemistry from Fairleigh Dickinson University
in New Jersey
and a Ph.D. in physical organic chemistry from New York University
. Dr. Totten is past president
of the International Federation for Heat Treatment and Surface Engineering (IFHTSE)
, a fellow
of ASM International, SAE International, and IFHTSE
, and a founding fellow
of AMME (World Academy of Materials Manufacturing Engineering)
. Currently, Dr. Totten is the co-editor
of ASTM's Journal of Materials Performance and Characterization (MPC)
with Professor Richard Neu.
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ISBN:
978-0-8031-7036-0
No. of Pages:
502
Publisher:
ASTM International
Publication date:
2012
eBook Chapter
Elastohydrodynamic Lubrication Film Tests and Tribological Bench Tests
By
Q. Wang
,
Q. Wang
1
Northwestern University
, Evanston, IL,
US
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Simon C. Tung
,
Simon C. Tung
2
RT Vanderbilt Company
, Norwalk, CT,
US
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Y. Liu
,
Y. Liu
3
Northwestern University
, Evanston, IL,
US
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Y. Zhang
,
Y. Zhang
4
Beijing University of Chemical Technology
, Beijing,
CN
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D. Zhu
D. Zhu
5
State Key Laboratory of Mechanical Transmission, Chongqing University
, Chongquing,
CN
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Page Count:
20
-
Published:2012
Citation
Wang, Q, Tung, SC, Liu, Y, Zhang, Y, & Zhu, D. "Elastohydrodynamic Lubrication Film Tests and Tribological Bench Tests." Automotive Lubricants and Testing. Ed. Tung, SC, & Totten, GE. 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959 : ASTM International, 2012.
Download citation file:
Elastohydrodynamic lubrication (EHL) film thickness suggests the capability of a lubricant to support load under a set of hydrodynamic conditions. It is related to the rheological properties of a lubricant, contact geometry, materials properties, and operating conditions such as load, speed, and temperature. Film thickness variation with speed or load may follow the prediction made with the theory of EHL. Experimental techniques based on capacity [1-3]; electrical conductivity and contact resistance [4-6]; discharge voltage [7]; X-ray transmission [8]; indirect laser transmission [9,10]; R-C oscillation technique [11]; and optical interferometry [12–35] have been used in EHL experiments for film- thickness measurement. On the other hand, as a result of the rapid development of high-speed computers, in-depth and detailed numerical analyses of EHL problems intend to become a routine practice. More influential factors can be considered now in EHL calculations: several non-Newtonian properties of a lubricant [30,31,36–38], surface roughness [32,33,37,38], the thermal effect [34,39,40], and non-steady-state transitions [35,41,42] have been included in a number of simulation models. Moreover, mixed lubrication simulations based on digitized real rough surfaces have been conducted in wider ranges of speed and load [36,37]. This section reviews and discusses the existing techniques for EHL film-thickness measurements, views of measurement data, and comparisons of measurement results with EHL simulation solutions.
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