... for subsequent investigations into the equilibrium positions and dynamic behaviors of offset-halves bearings under turbulent flow conditions. As critical supporting components in rotor-bearing systems, journal bearings are widely used in rotating machinery such as generators, gas turbines and internal...

... of thermoelectric potential in journal bearings under different dynamic loads and operation conditions are investigated and analyzed using feature extraction, clustering and indicator construction methods. Findings The results showed that the low potential percentage and the percentage of bad operation state...

... the lubrication and vibration properties of these bearings by experiments and examine the effect of rubber-to-plastic bush thickness ratio on bearing performance. Design/methodology/approach A water-lubricated journal bearing test rig is constructed, and three bearings with different bush thickness ratios...

...Yujun Wang; Georg Jacobs; Shuo Zhang; Benjamin Klinghart; Florian König Purpose This paper aims to study the lubrication mechanism of textured journal bearings. Design/methodology/approach CFD models for textured journal bearings are established. The effect of texture coverage on the pressure...

...Yinsi Chen; Yuan Li; Heng Liu; Yi Liu Purpose The purpose of this study is to identify the dynamic parameters of journal bearings in asymmetric rotor systems without additional test runs or excitations. Design/methodology/approach An asymmetric rotor-bearing test rig was set up...

...-butylhydroquinone (TBHQ) and a viscosity improver, ethylene-vinyl acetate (EVA), in journal bearing (JB) applications. Design/methodology/approach Samples of the BBL were prepared by blending it with TBHQ and EVA at various blending ratios. The oxidative stability (OS) and viscosity of the BBL samples were...

...Yazhou Mao; Daqing Li; Lilin Li; Jingyang Zheng Purpose This study aims to improve the tribological properties of hydrodynamic journal bearing via surface texture, as well as the wear and antifriction mechanisms of textured bearing were represented. It provides a design direction for solving...

...Deepak Byotra; Sanjay Sharma Purpose This study aims to understand how the texture shape, number of textures and addition of nanoparticle additives in lubricants impact the dynamic characteristics of journal bearing by comparing six different texture shapes like triangle, chevron, arc, circle...

... to investigate the effect of nanoparticle additives on the thermohydrodynamic performance of journal bearing with different bearing parameters. Design/methodology/approach The temperature distribution is modeled using a three-dimensional energy equation. The velocity components are calculated on the pressure...

...Biao Li; Jun Sun; Hu Wang; Xiao Zhang Purpose Under the action of many factors, the shaft of the shaft-journal bearing system inevitably moves along the axis direction at work, which will lead to the axial movement of journal in the bearing. However, at present, only the dynamic and squeezing...

...Shicheng Yan; Yahong Xue; Liming Wei; Zhanchao Wang Purpose This paper aims to elucidate the effects of lubricant groove shape, vertical load, swing angle and grease injection cycle on the friction and wear performances of journal bearings under the grease lubrication condition. Design...

...Xinbo Wang; Zhongwei Yin; Hulin Li; Gengyuan Gao; Jun Cao Purpose The purpose of this paper is to study the frictional behaviors of CuAl10Fe3 journal bearings sliding against chromium electroplated 42CrMo shafts and diamond-like carbon-coated 42CrMo shafts, respectively, under two different...

... laboratory tests and transferred to a journal bearing, thus testing them under more realistic conditions. Design/methodology/approach Surface patterns on a large scale (depth > 10 µm) were fabricated by micro- and roller-coining, whereas surface patterns on a small scale (depth < 2 µm) were...

...Shubham Rajendra Suryawanshi; Jayant T. Pattiwar Purpose The purpose of this study is to investigate the tribological performance (anti-friction and anti-wear properties) of commercial Mobil grade lubricants used in a journal bearing system in a power plant. Design/methodology/approach Three...

... the appropriate surface texture to reduce vibration and improve the stability of journal bearings. Design/methodology/approach Micro-dimples, evenly distributed in a square array, were selected as the texture pattern and formed on the lower surface of bush by the laser surface texturing technique. Experiments...

...Ali Usman; Cheol Woo Park Purpose Journal bearings are used in numerous rotary machines. The load carrying capacity and friction of a bearing have been major concerns in design. Recent developments in surface texturing have showed potential outcomes to improve the tribological characteristics...

...Chuang Wang; Ziwen Xing; Xi Pan; Zhilong He Purpose The well-operating condition of journal bearing is the assurance to keep superior performance of water-lubricated twin-screw compressor. To design the journal bearing more reasonably for this type of compressor, this paper aims to study...

...Aibin Zhu; Hongling Wu; Yulei Yang; Shengli He Purpose Because of the various geometric descriptions of different bearing types, performance calculation of journal bearing is complicated, and is difficult in traditional model. This paper aims to simplify the calculation of the journal bearing...

...Yu Chen; Yu Sun; Chunping Cao Purpose The purpose of this study is to investigate the hydrodynamic characteristics of journal bearings in a high-speed and heavy-load press system by considering thermal influence and cavitation. Design/methodology/approach A proper and effectual computational...

...Lijesh K.P.; Muzakkir S.M.; Harish Hirani; Gananath Doulat Thakre Purpose The journal bearings subjected to heavy load and slow speed operate in mixed lubrication regime causing contact between the interacting surfaces and resulting in wear. Complexity of wear behavior and lack of unifying theory...