Results 41 to 50 of about 113,445 (204)

Research Progress on Surface Design and Solid-Liquid Composite Lubrication Technology of Friction Pairs in High-Pressure Plunger Pumps [PDF]

open access: yesCailiao Baohu
Plunger pumps, as one of the most critical power components in mechanical hydraulic systems, are widely used in aerospace, construction machinery and other fields due to their advantages of high rotational speed, high pressure, high transmission ...
CUI Bin, HOU Shanshan, ZHANG Rui, LI Panpan, LIU Xiaohong, JI Li, LI Hongxuan
doaj   +1 more source

Running-in wear modeling of honed surface for combustion engine cylinder liners [PDF]

open access: yes, 2013
The texture change during running-in alters the performance and efficiency of a tribo-mechanical system. During mass production of cylinder liners, a final finishing stage known as ‘‘plateau honing’’ is commonly added to reduce the running-in wear ...
DEMIRCI, Ibrahim   +3 more
core   +6 more sources

Development of the methodology for testing experimental oil pumps of a vertical spiral compressor

open access: yesОмский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение"
In the design vertical scroll compressors, engineers often need to calculate an oil pump that influences the compressor’s features, performance and reliability.
K. S. Sazonov   +3 more
doaj   +1 more source

Lubricant-free deep drawing using CO2 and N2 as volatile media injected through laser-drilled microholes

open access: yesManufacturing Review, 2019
Most metal forming processes use lubricants based on mineral oils as an intermediate medium to reduce friction and wear. To avoid the well-known drawbacks of oil lubrication, a novel and environment friendly lubrication system for deep-drawing processes ...
Zahedi Ehsan   +8 more
doaj   +1 more source

Considerations on the lubrication of spacecraft mechanisms [PDF]

open access: yes, 1983
Space tribology and a number of precepts to guide designers in its application are discussed. Of the many techniques available all, without exception, have limitations in performance.
Briscoe, M., Todd, M. J.
core   +1 more source

Gas-Phase Lubrication of ta-C by Glycerol and Hydrogen Peroxide. Experimental and Computer Modeling [PDF]

open access: yes, 2010
Tetrahedrally coordinated hydrogen-free amorphous diamond-like carbon coating (denoted as ta-C) presents ultralow friction under boundary lubrication conditions at 80 °C in presence of OH-containing molecules.
De Barros Bouchet, Maria-Isabel   +6 more
core   +1 more source

Research of Intelligent Centralized Lubrication System and Its Development

open access: yesGong-kuang zidonghua, 2010
In view of the problems that lubricating failure frequently took place in traditional single-strand and double-strand lubrication system because of their unreasonable design,a design scheme of intelligent centralized lubrication system was put forward ...
WANG Li, SU Bo
doaj  

Lubricant-free deep drawing using CO2 and N2 as volatile media injected through laser-drilled microholes

open access: yesMATEC Web of Conferences, 2018
Most metal forming processes use lubricants based on mineral oils as an intermediate medium to reduce friction and wear. To avoid the well-known drawbacks of oil lubrication, a novel and environment friendly lubrication system for deep-drawing processes ...
Zahedi Ehsan   +7 more
doaj   +1 more source

Characteristics Study of In-Situ Capacitive Sensor for Monitoring Lubrication Oil Debris

open access: yesSensors, 2017
As an essential part of engine health monitoring (EHM), online lubrication oil debris monitoring has recently received great attention for the assessment of rotating and reciprocating parts in aero-engines, due to its high integration, low cost and safe ...
Zhibin Han, Yishou Wang, Xinlin Qing
doaj   +1 more source

Passive hydrodynamic synchronization of two-dimensional swimming cells

open access: yes, 2010
Spermatozoa flagella are known to synchronize when swimming in close proximity. We use a model consisting of two-dimensional sheets propagating transverse waves of displacement to demonstrate that fluid forces lead to such synchronization passively ...
Elfring, Gwynn J., Lauga, Eric
core   +1 more source

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