Results 71 to 80 of about 93,445 (307)

Investigation on Modeling and Formation Mechanism of Dynamic Rotational Error for Spindle-Rolling Bearing System

open access: yesApplied Sciences, 2020
In the field of precision machining, the spindle-rolling bearing (SRB) system is widely used on the machine tool as one of the most fundamental and important components.
Gaofeng Hu   +6 more
doaj   +1 more source

Magnetic Bearing: Structure, Model and Control strategy

open access: yesThe International Journal of Advanced Manufacturing Technology, 2023
Abstract Bearings are crucial transmission components that offer support to mechanical rotating bodies. Nevertheless, traditional bearing failure due to friction and wear more easily. In scenarios involving ultra-high speeds and extreme applications, minimizing bearing losses and enhancing performance becomes especially vital. Magnetic bearings,
Zhihang Huang   +11 more
openaire   +1 more source

PARK(ing) time–How park deficiency affects the biological clock in a Drosophila model of Parkinson's disease

open access: yesFEBS Letters, EarlyView.
Drosophila park mutants serve as a model for Parkinson's disease. We used this strain to investigate the connection between oxidative stress and the circadian clock mechanism. We showed that increased oxidative stress affects the physiology of pacemaker cells, disrupting their daily structural plasticity. Lack of rhythmic signaling from pacemaker cells
Kamila Zientara   +3 more
wiley   +1 more source

Non-dimensional design approach for electrodynamic bearings [PDF]

open access: yes, 2012
Electrodynamic bearings (EDBs) are passive magnetic bearings that exploit the interaction between eddy currents developed in a rotating conductor and a static magnetic field to generate forces. Similar to other types of magnetic suspensions, EDBs provide
Impinna, Fabrizio   +4 more
core  

Nonlinear Transient Modeling and Design of Turbocharger Rotor/Semi-Floating Bush Bearing System

open access: yesLubricants, 2017
This work presents the bearing design and analysis of radial semi-floating bush oil lubricated bearings for a typical industrial turbocharger configuration.
Jianming Cao   +3 more
doaj   +1 more source

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik   +5 more
wiley   +1 more source

Frequency Sweep Modeling Method for the Rotor-Bearing System in Time Domain Based on Data-Driven Model

open access: yes, 2022
In practice, the modeling and analysis of nonlinear rotor-bearing systems are difficult due to the nonlinearity and complexity. In the previous studies, finite element simulation and mathematical modeling methods are mostly adopted to conduct the ...
Zhimin Zhu   +4 more
core   +1 more source

A transmission problem for beams on nonlinear supports

open access: yesBoundary Value Problems, 2006
A transmission problem involving two Euler-Bernoulli equations modeling the vibrations of a composite beam is studied. Assuming that the beam is clamped at one extremity, and resting on an elastic bearing at the other extremity, the existence of a ...
Oquendo Higidio Portillo, Ma To Fu
doaj   +2 more sources

The Application of Molecular Dynamics in Fullerene-Based Journal Bearing Simulation

open access: yesLubricants, 2014
The article is devoted to modeling of the molecular microscopic journal bearing. The walls and the lubricant of the bearing are fullerene-like molecules.
Alexey Kornaev   +2 more
doaj   +1 more source

Finite element modeling of proximal femur with quantifiable weight-bearing area in standing position

open access: yesJournal of Orthopaedic Surgery and Research, 2020
Background The positional distribution and size of the weight-bearing area of the femoral head in the standing position as well as the direct active surface of joint force can directly affect the result of finite element (FE) stress analysis.
Peng Yang   +10 more
doaj   +1 more source

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