Results 51 to 60 of about 12,916,031 (272)

The analysis of bearing damage caused bearing currents [PDF]

open access: yes, 2010
The negative influence of bearing currents on the durability of rolling bearings in the alternating current electric motors are shown. The reasons of bearing current formation in electric motors are given. Examples of bearing races damages of cooperating
Kwak, J.   +4 more
core  

Scaling effects of inverter-induced bearing currents in AC machines

open access: yes, 2007
In this survey paper, we show by straightforward mathematical scaling considerations that small inverter-fed ac motors of tip to typical 20 kW at 1500/min are likely to suffer from discharge (electric discharge machining) bearing currents, whereas larger
Mütze, A.   +5 more
core   +1 more source

Bidirectional Current WP and CBAR Neural Network Model-Based Bearing Fault Diagnosis

open access: yesIEEE Access, 2023
In the era of artificial intelligence, the development of an efficient bearing, fault diagnosis method is of vital importance to ensure smooth production operations and avoid major economic losses.
Jianguang Zhu, Tang Liu
doaj   +1 more source

Bearing currents in PWM inverter-fed drives [PDF]

open access: yes, 2006
The application of high switching techniques improves the economic and technical parameters of induction motor drives. However, it has been discovered recently an adverse effect on a bearing assembly which is caused by destructive bearing currents EDM ...
Smoleński, R., Kempski, A.
core  

Non-Circulating Bearing Currents in Drum-Winding Machine: Threat Level and Role of End Windings [PDF]

open access: yes
Bearing currents are a significant challenge in electric machines, particularly in variable speed drives with modern fast-switching frequency converters.
Petrov, Ilya   +3 more
core   +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

A Common-Mode Shorting Network to Reduce Common-Mode Excitation of Three-Phase Two-Level Electric Drives

open access: yesIEEE Open Access Journal of Power and Energy, 2023
Common-mode voltage and current in an electric machine are undesirable. Although the strategic placement of a common-mode inductor and dc input side capacitors may reduce the common-mode current produced by an electric drive system, the effectiveness of ...
Harshita Singh, Scott D. Sudhoff
doaj   +1 more source

Elimination of bearing currents with use of insulated bearings [PDF]

open access: yes, 2011
The negative influence of bearing currents on the durability of rolling bearings in the alternating current electric motors are shown. The reasons of bearing current formation in electric motors are given. Examples of bearing races damages of cooperating
Bartnicki, B.   +3 more
core  

Engineering peptides into antibodies—opportunities and strategies for therapeutic innovation

open access: yesFEBS Letters, EarlyView.
Peptides and antibodies occupy complementary therapeutic niches. Peptides recognize difficult targets in a compact format, while antibodies add specificity, long half‐life, and effector functions. This review examines strategies that merge both modalities—peptide grafting into loops, terminal and Fc fusions, and bioconjugation—highlighting how ...
Jinling Wang   +2 more
wiley   +1 more source

Review on Tribological and Vibration Aspects in Mechanical Bearings of Electric Vehicles: Effect of Bearing Current, Shaft Voltage, and Electric Discharge Material Spalling Current

open access: yesLubricants
Electric motors play a decisive role in electric vehicles by converting electrical energy into mechanical motion across various drivetrain components.
Rohan Lokhande   +5 more
doaj   +1 more source

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