Results 31 to 40 of about 968,782 (237)

Evaluation of the Thermal Effects in Tilting Pad Bearing

open access: yesInternational Journal of Rotating Machinery, 2013
The analysis of thermal effects is of expressive importance in the context of rotordynamics to evaluate the behavior of hydrodynamic bearings because these effects can influence their dynamic characteristics under specific operational conditions.
G. B. Daniel, K. L. Cavalca
doaj   +1 more source

Limitation of Acoustic Emission for Identifying Seeded Defects in Gearboxes [PDF]

open access: yes, 2005
Acoustic Emissions (AE) is gaining ground as a Nonestructive Technique (NDT) for health diagnosis on rotating machinery. Vast opportunities exist for development of the AE technique on various forms of rotating machinery, including gearboxes.
Mba, David, Tan, Chee Keong
core   +1 more source

Factors influencing rotating machinery reliability

open access: yes, 1996
Factors influencing rotating machinery ...
T.R. Moss (7120835)   +1 more
core   +4 more sources

On the Instability Threshold of Journal Bearing Supported Rotors

open access: yesInternational Journal of Rotating Machinery, 2014
Journal bearing supported rotors present two kinds of self-excited vibrations: oil-whirl and oil-whip. The first one is commonly masked by the rotor unbalance, hence being rarely associated with instability problems.
Ricardo Ugliara Mendes   +1 more
doaj   +1 more source

Active Magnetic Bearing Online Levitation Recovery through μ-Synthesis Robust Control

open access: yesActuators, 2017
A rotor supported on active magnetic bearings (AMBs) is levitated inside an air gap by electromagnets controlled in feedback. In the event of momentary loss of levitation due to an acute exogenous disturbance or external fault, reestablishing levitation ...
Alexander H. Pesch, Jerzy T. Sawicki
doaj   +1 more source

Reliability-Based Design Optimization Applied to a Rotor Supported by Hydrodynamic Bearings

open access: yesMachines
Rotating machines are an important part of industrial equipment. It is essential to improve their performance while reducing the manufacturing, operating, and maintenance costs.
Helio Fiori de Castro   +2 more
doaj   +1 more source

LMD Method and Multi-Class RWSVM of Fault Diagnosis for Rotating Machinery Using Condition Monitoring Information

open access: yesSensors, 2013
Timely and accurate condition monitoring and fault diagnosis of rotating machinery are very important to maintain a high degree of availability, reliability and operational safety.
Zhongjie Shen   +3 more
doaj   +1 more source

Wireless Condition-based Maintenance System for Rotating Machinery [PDF]

open access: yes
Condition-based maintenance (CBM) presently plays an important role in avoiding unexpected failures, improving machine reliability, and providing accurate maintenance records and activities for rotating machinery.
Tran, Van Tung
core   +3 more sources

Calculation of Rotor Dynamic Coefficients for Labyrinth Seals

open access: yesInternational Journal of Rotating Machinery, 1998
A single control volume, Iwatsubo based bulk flow method for the calculation of these coefficients is developed and implemented. The method herein uses a unique iterative technique to first identify the mass flow rate based on pressure drops across the ...
B. P. Williams, R. D. Flack
doaj   +1 more source

Translophagy—A potential link between autophagy impairment and translational errors

open access: yesFEBS Letters, EarlyView.
Neurodegenerative diseases are characterised by the accumulation of abnormal proteins and protein aggregates, but their origin often remains unknown. We propose that selective autophagy removes damaged protein‐making machinery, preventing errors during protein synthesis.
Mykola V. Korolchuk   +11 more
wiley   +1 more source

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