Results 21 to 30 of about 3,374,665 (395)

Analysis of dynamical behaviour of full-floating disk thrust bearings [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2021
Full-floating ring bearings are state of the art at high speed turbomachinery shafts like in turbochargers. Their main feature is an additional ring between shaft and housing leading to two fluid films in serial arrangement. Analogously, a thrust bearing
Steffen Nitzschke   +2 more
doaj   +1 more source

Nonlinear Dynamical Analysis for a Plain Bearing

open access: yesAdvances in Mechanical Engineering, 2014
This paper investigates the nonlinear dynamic behavior for a plain classic bearing (fluid bearing) lubricated by a non-Newtonian fluid of a turbo machine rotating with high speed; this type of fluid contains additives viscosity (couple-stress fluid film).
Ali Belhamra   +3 more
doaj   +1 more source

Hydrodynamic Bearing Lubricated with Magnetic Fluids

open access: yesJournal of Intelligent Material Systems and Structures, 2009
This article summarizes the work carried out in the development of hydrodynamic lubricated journal bearings with magnetic fluids. Two different fluids have been analyzed: one is the ferrofluid from FERROTEC APG s10n and the other is the magnetorheological (MR) fluid from LORD Corp., MRF122-2ED.
Urreta, Harkaitz   +5 more
openaire   +2 more sources

Case study of natural convection topology optimization based on finite volume method

open access: yesCase Studies in Thermal Engineering
Topology optimization is crucial for improving natural convection cooling devices. This study applies natural convection topology optimization to various engineering cases, including 2D, 3D, inclined, and inverted heat sink with various boundary ...
Honglei Liu   +5 more
doaj   +1 more source

THE EFFECT OF CHAMBERS ANGLES’ POSITION ON THE EXTERNAL AND INTERNAL PARTS OF THE HYDROSTATODYNAMIC BEARING OF DOUBLE TYPE ON ITS SUPPORTING CAPACITY

open access: yesАвіаційно-космічна техніка та технологія, 2019
The task is to study the bearing capacity of the double type bearing at different angular positions of the chambers on the outer and inner working surfaces.
Владимир Иосифович Назин
doaj   +1 more source

Performance prediction of journal bearing with fluid slip regions on part of lubricated surface

open access: yesNihon Kikai Gakkai ronbunshu
Rotating machineries supported in journal bearings are operated at a rotational speed between the one where the minimum oil film thickness is ensured to prevent direct contact of the journal and bearing surfaces and the one where self-excited vibration ...
Kiyoshi HATAKENAKA, Ryoichiro OBANA
doaj   +1 more source

High speed hybrid bearing comprising a fluid bearing and a rolling bearing convected in series [PDF]

open access: yes, 1973
A description is given of an antifriction bearing and a process by which its fatigue life may be extended. The method involves a rotating shaft supported by a fluid bearing and a rolling element bearing coupled in series. Each bearing turns at a fraction
Anderson, W. J.
core   +1 more source

Patient‐Level Barriers and Facilitators to Inpatient Physical Therapy in Adolescents and Young Adults With a Hematological Malignancy: A Qualitative Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Despite their increased risk for functional impairment resulting from cancer and its treatments, few adolescents and young adults (AYAs) with a hematological malignancy receive the recommended or therapeutic dose of exercise per week during inpatient hospitalizations.
Jennifer A. Kelleher   +8 more
wiley   +1 more source

CALCULATION OF COMBINED HYDROSTATIC BEARINGS OF DOUBLE TYPE AT STATIONARY EXTERNAL LOAD

open access: yesАвіаційно-космічна техніка та технологія, 2017
The relevance of the application of combined hydrostatic bearings of the twin type in various units and power plants is shown, the loads in which reach ten tons.
Владимир Иосифович Назин
doaj   +1 more source

Characterizing Parental Concerns About Lasting Impacts of Treatment in Children With B‐Acute Lymphoblastic Leukemia

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background B‐acute lymphoblastic leukemia (B‐ALL) is the most common pediatric cancer, and while most children in high‐resource settings are cured, therapy carries risks for long‐term toxicities. Understanding parents’ concerns about these late effects is essential to guide anticipatory support and inform evolving therapeutic approaches ...
Kellee N. Parker   +7 more
wiley   +1 more source

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