Results 221 to 230 of about 363,743 (292)

Experimental test rig for oil film thickness study

Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies XI, 2023
The paper presents some aspects regarding the conception and construction of an experimental test rig used for studies concerning friction phenomenon of threads immersed in oil, maintained in a state of motion with constant velocity. The structure of the
Ionuţ Cristian Românu, Ioan-Cozmin Manolache-Rusu, Ilie Muscă, Gavril Ciornei   +3 more
openaire   +2 more sources

High-accuracy incident signal reconstruction for in-situ ultrasonic measurement of oil film thickness

Mechanical Systems and Signal Processing, 2021
The oil film thickness in an oil-lubricated tribo-pair can be measured using reflected ultrasonic waves and various transformation models. Conventionally, this approach requires the incident signal to be calibrated using off-line methods prior to testing,
Pan Dou, Yaping Jia, Tonghai Wu, Zhongxiao Peng, Min Yu, T. Reddyhoff   +5 more
semanticscholar   +3 more sources

Effects of oil film thickness and viscosity on the performance of misaligned journal bearings with couple stress lubricants

Tribology International, 2020
This paper investigated the performance characteristics of misaligned journal bearing lubricated using couple stress fluids. Based on micro-continuum theory, the modified Reynolds equation for couple stress lubricants was developed, in which viscosity ...
Liangyan Zheng, Han-hua Zhu, Junchao Zhu, Yibin Deng   +3 more
semanticscholar   +3 more sources

Oil distribution and oil film thickness within the piston ring-liner contact measured by laser-induced fluorescence in a reciprocating model test under starved lubrication conditions

Tribology International, 2019
For a better understanding of the most important parameters and boundary conditions for scuffing initiation in the piston ring versus cylinder liner contact at fired top dead center of internal combustion engines, oil distribution measurements were ...
P. Obert, H. Füsser, D. Bartel
semanticscholar   +3 more sources

Roller sliding in engine valve train: Effect of oil film thickness considering lubricant composition

Tribology International, 2020
In roller follower valve train, proper rolling of roller reduces the chances of fatigue failure and power losses. During engine operation, the roller does slip on the camshaft surface.
M. Khurram, R. Mufti, Muhammad Usman Bhutta, Naqash Afzal, M. U. Abdullah, S. Rahman, Saif-ur- Rehman, Rehan Zahid, Khalid Mahmood, M. Ashfaq, M. Umar   +10 more
semanticscholar   +3 more sources

Multi-position measurement of oil film thickness within the slipper bearing in axial piston pumps

Measurement: Journal of the International Measurement Confederation, 2018
The oil film thickness represents the greatest unknown variable influencing the slipper performance in axial piston pumps. Earlier slipper test rigs suffer from two main drawbacks: inverse kinematics of the slipper and fixed measured positions.
Qun Chao, Jun-hui Zhang, Bing Xu, Qian-nan Wang   +3 more
semanticscholar   +3 more sources

Oil Film Thickness in Engine Bearings

Engine Oils and Automotive Lubrication, 2019
1.1 Measurement of Oil Film Thickness in Big-End Bearings and Its Relevance to Engine Oil Viscosity ...
openaire   +2 more sources

Measurement and calculation of oil film thickness in a ball bearing

Industrial Lubrication and Tribology, 2018
Purpose The oil film thickness provides a key performance indicator of a ball bearing lubrication condition. This paper aims to propose an approach to calculate and measure the oil film thickness of the bearing.
Baogang Wen, H. Ren, Pengfei Dang, X. Hao, Qingkai Han   +4 more
semanticscholar   +3 more sources

Oil-Film Thickness in Rolling Bearings

2016
There are two kinds of lubrication for the bearings, oil and grease lubrications. In fact, the base oil dissolved in grease is separated from grease due to the centrifugal force of oil at increasing oil temperatures, and it is in fact used to lubricate the rolling bearings (cf. Chap. 5).
Hung Nguyen-Schäfer
openaire   +2 more sources

Ultrasonic measurement of oil film thickness using piezoelectric element

The International Journal of Advanced Manufacturing Technology, 2016
Ultrasonic method is promising in oil film thickness measurement, while the commonly used commercial transducers are bulky and then sometimes hinder the application of this technology in field. Using the piezoelectric element is an alternative method and has the advantage of being convenient to be fixed.
Kai Zhang, Tonghai Wu, Qinghu Meng, Qingfeng Meng   +3 more
openaire   +2 more sources