Results 11 to 20 of about 1,083,308 (333)

The Effect of Torsional Vibration in Longitudinal-Torsional Coupled Ultrasonic Vibration-Assisted Grinding of Silicon Carbide Ceramics. [PDF]

open access: yesMaterials (Basel), 2021
Rotary longitudinal–torsional coupled ultrasonic vibration-assisted grinding (LTUAG) is a new manufacturing method that can improve the grinding ability of silicon carbide ceramics.
Chen Y   +6 more
europepmc   +2 more sources

Torsional Vibration Suppression in Railway Traction Drives

open access: yesIEEE Access, 2022
Torsional vibrations phenomena are self-excited vibrations that occur in the wheelset of railway powertrains due to the counter-phase oscillation of both wheels. Long-lasting events of this type may lead to the catastrophic failures. Therefore, torsional
A. Abouzeid   +5 more
semanticscholar   +1 more source

Drive-train torsional vibration suppression of large scale PMSG-based WECS

open access: yesProtection and Control of Modern Power Systems, 2022
This paper provides a systematic analysis of the large scale PMSG (permanent magnet synchronous generator)-based WECS (wind energy conversion system) torsional vibration problem under MPPT (maximum power point tracking) control and constant power control.
Feihang Zhou
semanticscholar   +1 more source

Magnetorheological Elastomer based torsional vibration isolator for application in a prototype drilling shaft

open access: yesJournal of Low Frequency Noise Vibration and Active Control, 2021
Smart materials properties are altered using external stimuli such as temperature, pressure and magnetic field. Magnetorheological Elastomer (MRE) is a type of smart composite material consisting of a polymer matrix embedded with ferromagnetic particles.
Thaer M. I. Syam, Asan G. A. Muthalif
semanticscholar   +1 more source

On-Shaft Wireless Vibration Measurement Unit and Signal Processing Method for Torsional and Lateral Vibration

open access: yesIEEE/ASME transactions on mechatronics, 2022
Microelectromechanical systems accelerometers have opened new possibilities for vibration monitoring of a rotating machinery. They enable mounting accelerometers directly to the rotating component of the machine, e.g., shaft.
I. Koene   +5 more
semanticscholar   +1 more source

On sixfold coupled vibrations of thin-walled composite box beams [PDF]

open access: yes, 2008
This paper presents a general analytical model for free vibration of thin-walled composite beams with arbitrary laminate stacking sequences and studies the effects of shear deformation over the natural frequencies.
Armanios   +27 more
core   +2 more sources

Study on a longitudinal–torsional ultrasonic vibration system with diagonal slits

open access: yesAdvances in Mechanical Engineering, 2017
The longitudinal–torsional ultrasonic vibration machining process is popular for machining hard and brittle materials. A longitudinal–torsional ultrasonic vibration system with diagonal slits was designed for the ultrasonic vibration machining process ...
Tao Chen   +3 more
doaj   +1 more source

Development of a torsional vibration suppression device using permanent magnets

open access: yesNihon Kikai Gakkai ronbunshu, 2021
Dual mass flywheel (DMF) dampers are conventionally used for torsional vibration suppression in automobile powertrains. The torsional vibration in powertrains has increased in recent years owing to the widespread downsizing of internal combustion engines
Tomohiro MIYABE   +3 more
doaj   +1 more source

Multi-Condition Temperature Field Simulation Analysis of Magnetorheological Grease Torsional Vibration Damper

open access: yesFrontiers in Materials, 2022
To reveal the transient temperature distribution pattern inside the magnetorheological grease (MRG) torsional vibration damper and explore the relationship between the current and internal temperature of the device, the transient temperature simulation ...
Zida Xiao   +4 more
doaj   +1 more source

Intermittent behaviour of a Cracked Rotor in the resonance region [PDF]

open access: yes, 2008
Vibrations of the Jeffcott rotor are modelled by a three degree of freedom system including coupling between lateral and torsional modes. The crack in a rotating shaft of the rotor is introduced via time dependent stiffness with off diagonal couplings ...
Litak, Grzegorz, Sawicki, Jerzy T.
core   +3 more sources

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