Results 21 to 30 of about 6,663 (306)
Improving the Stability and Critical Speed of Rotor Bearing System By Using External Damping Source [PDF]
Engineering and Technology Journal, 2020 Improving the essential factors of rotor bearing system are the aim of this study. In addition to the presence of two ball bearings to support the rotor, two additional fluid film journal bearings have been used as an external damping sources.
Tariq M. Hammza +2 more
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Improvement of Tilting-Pad Journal Bearing Operating Characteristics by Application of Eddy Grooves
Lubricants, 2021 In high speed, high load fluid-film bearings, the laminar-turbulent flow transition can lead to a considerable reduction of the maximum bearing temperatures, due to a homogenization of the fluid-film temperature in radial direction. Since this phenomenon
Eckhard Schüler, Olaf Berner
doaj +1 more source
Experimental Performance Study of a High Speed Oil Lubricated Polymer Thrust Bearing
Lubricants, 2015 With the demand for turbomachinery to operate at higher speeds, loads, and power, fluid film bearings that support turbomachinery must be capable of operating in these more demanding applications.
Jie Zhou +3 more
doaj +1 more source
Influence of Micropolar Lubricants on Asymmetric Slot-Entry Journal Bearings
Tribology Online, 2015 Performance of asymmetric slot-entry hydrostatic and hybrid journal bearings lubricated under micropolar lubricant has been presented numerically. For chosen values of microploar parameters, the effects of micropolar lubricant on both the bearings have ...
Nathi Ram, Satish C. Sharma
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An Overview of Bearing Candidates for the Next Generation of Reusable Liquid Rocket Turbopumps
Chinese Journal of Mechanical Engineering, 2020 There is a consensus in the aerospace field that the development of reusable liquid rockets can effectively reduce the launch expense. The pursuit of a long service life and reutilization highly depends on the bearing components.
Jimin Xu +4 more
doaj +1 more source
Structural Design and Lubrication Properties under Different Eccentricity of Magnetic Fluid Bearings
Applied Sciences, 2022 As a lubricant, the viscosity of the magnetic fluid changes with the external magnetic field, which improves the bearing capacity of the oil film and hence the lubrication effect, and has a promising application in bearings.
Ao Wang, Jiabao Pan, Huaibiao Wu, Jin Ye
doaj +1 more source
Measurement of Piston Pin-Bore Oil Film Pressure under Engine Operation
Lubricants, 2022 Thin-film sensors were used to measure the oil film pressure distribution at the piston pin-bore interface in order to ascertain the stress distribution on the piston pin of a gasoline engine during actual operation.
Takumi Iwata +5 more
doaj +1 more source
On the stability of Jeffcott rotor in fluid-film bearings
Computer Assisted Methods in Engineering and Science, 2023 For some combinations of rotor speed and radial load, the pressure field of bearing fluid can perturb the pure rotational motion and disturb the normal operation of a rotating machine.
Milenko Stegić +2 more
doaj
Tribology Online, 2018 In this paper, combined effects of piezo-viscous dependency and surface roughness on the squeeze film characteristics of non-Newtonian micropolar fluid in conical bearings are presented.
Pentyala Srinivasa Rao +2 more
doaj +1 more source
Tribology Online, 2014 In this paper, a theoretical study of the combined effects of viscosity variation and surface roughness on the squeeze film performance of journal bearings lubricated with micropolar fluid is made.
Neminath Bhujappa Naduvinamani +3 more
doaj +1 more source