Results 31 to 40 of about 10,792 (307)

75mw Turbine-Generator Journal/Thrust Bearing Upgrade. [PDF]

open access: yes, 2009
Case StudyThis case history discusses the upgrade of the #1 combination journal-thrust bearing assembly in the front standard of a 75 MW turbine/generator set.
Drigant, Boris, Postill, Julia
core   +1 more source

Modelling and Simulation of Aerostatic Thrust Bearings [PDF]

open access: yesIEEE Access, 2020
This paper demonstrates the modelling and simulation comparison of the static characteristics of a porous, orifice, and multiple type aerostatic thrust bearings on the basis of load-carrying capacity(LCC) and stiffness. The equations Navier-Stokes (N-S) are used to solve the internal distribution of pressure in computational fluid dynamics(CFD ...
Muhammad Punhal Sahto   +5 more
openaire   +3 more sources

Study on Vibration Characteristics of Diamond Thrust Bearing Pack in PDM assembly

open access: yesShiyou jixie, 2021
Diamond thrust bearing pack is an important part of mud motor. In order to study the vibration characteristics of the diamond thrust bearing pack in actual drilling and analyze the influence of vibration signals on the diamond thrust bearing pack, in the
Zhang Wei   +4 more
doaj  

Investigation of Stress Variation in Push-the-Bit Rotary Steering Bearings Under Weight on Bit and Push Forces

open access: yesCejing jishu
As the key component of the push-the-bit rotary steerable system, the accuracy and reliability of the bearing system directly affect the control accuracy and drilling efficiency of the drilling tool on the borehole trajectory.
SHEN Bin   +6 more
doaj   +1 more source

The skills required for transition to university and study in biological sciences: A student perspective

open access: yesFEBS Open Bio, EarlyView.
Bioscience students were asked for their opinions on the value and teaching of skills. 204 responded that teamwork, time management and study skills are necessary to reach University, that scientific writing, research, laboratory and presentation skills are taught effectively during their studies, while other skills are gained inherently through study ...
Janella Borrell, Susan Crennell
wiley   +1 more source

Inertia and Couple-Stress Effects in a Curvilinear Thrust Hydrostatic Bearing

open access: yes, 2017
The flow of a couple-stress lubricant in a clearance of a curvilinear thrust hydrostatic bearing with impermeable walls is considered. The flow in the bearing clearance is considered with inertia forces.
A. Walicka   +5 more
core   +1 more source

Development of the mathematical model for the prediction of friction loss in turbocharger bearing components

open access: yesNihon Kikai Gakkai ronbunshu, 2018
It is required to examine the characteristics of turbochargers for automobiles using one-dimensional simulation from the viewpoint of estimating total engine performance.
Satoshi SAKAGAMI   +5 more
doaj   +1 more source

Thermal Characteristics Study of the Bump Foil Thrust Gas Bearing

open access: yesApplied Sciences, 2021
In this paper, a thermo-hydrodynamic model of the bump foil thrust gas bearing is developed, which solves the coupled gas film three-dimensional energy equation, non-isothermal Reynolds equation, and the foil deformation equation.
Xiaomin Liu   +3 more
doaj   +1 more source

Pharmacological inhibition of the PERK pathway modulates hepatocellular carcinoma growth and immune signaling

open access: yesFEBS Open Bio, EarlyView.
Pharmacological inhibition of PERK in a DEN‐induced mouse model of liver cancer does not reduce tumor burden but alters cellular stress signaling. Despite blocking PERK activity, downstream stress responses, including CHOP expression, remain active, suggesting compensatory mechanisms within the unfolded protein response that may influence tumor ...
Ada Lerma‐Clavero   +5 more
wiley   +1 more source

Analysis on shafting axial vibration of marine thrust bearing considering pad geometrical parameters

open access: yesZhongguo Jianchuan Yanjiu, 2019
[Objectives] The overall stiffness of thrust bearing has an important influence on the natural frequency of the shafting axial vibration,but there is not much research on the influence of the oil film stiffness of the thrust bearing,Therefore,to study ...
ZHANG Jinguo, TIAN Jiabin, HE Tao
doaj   +1 more source

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