Results 1 to 10 of about 3,708 (166)

A Novel Slope Method for Measurement of Fluid Density with a Micro-cantilever under Flexural and Torsional Vibrations [PDF]

open access: yesSensors, 2016
A novel method, which was called a slope method, has been proposed to measure fluid density by the micro-cantilever sensing chip. The theoretical formulas of the slope method were discussed and established when the micro-cantilever sensing chip was under
Libo Zhao   +8 more
doaj   +2 more sources

Suppression of rotating machine shaft-line torsional vibrations by a driving asynchronous motor using two advanced control methods [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2023
Many industrial rotating machines driven by asynchronous motors are often affected by detrimental torsional vibrations. In this paper, a method of attenuation of torsional vibrations in such objects is proposed.
Paweł Hańczur   +2 more
doaj   +1 more source

Application of Torsional Dampers for the Vibrations Reduction in Crankshafts of Piston Aircraft Engines [PDF]

open access: yesMATEC Web of Conferences, 2022
It is a well-known fact that piston engines shake, among which some of them more than others. Therefore, such type of vibrations, created by piston engines, should be controlled somehow.
Jackiewicz Jacek
doaj   +1 more source

Method for Adjusting Torsional Natural Frequencies of Powertrains with Novel Coupling Design

open access: yesMachines, 2022
Torsional vibrations are inherently present in every rotating powertrain. In resonant conditions, torsional vibrations can be significantly amplified. A typical method to reduce the torsional vibration particularly at resonance is to modify the torsional
Kalle Kinnunen   +3 more
doaj   +1 more source

Parameter Selection of Four-Cylinder Diesel Torsional Vibration Dampers

open access: yesМеханика машин, механизмов и материалов, 2021
Torsional vibration dampers in modern internal combustion engines are used to reduce alternating shear stresses leading to fatigue failure of the crankshaft, as well as to diagnose the crankshaft, reduce oil consumption, increase the mechanical ...
Mikhail A. Klesso   +3 more
doaj   +1 more source

Mitigation of Torsional Vibrations in a Modular Drivetrain with Interleaving Control

open access: yesMachines, 2022
In order to meet requirements in machine design, modularity is often brought forward as a way to cope with load variations and adaptability of the architecture.
David van Os   +4 more
doaj   +1 more source

Reducing critical effects of torsional vibrations induced by PDC bits during rock destruction

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2022
Introduction. Torsional vibrations caused by drilling using a polycrystalline diamond compact (PDC) bit are analysed using wellbore data obtained under various drilling modes. The drilling caused by torsional vibrations are analysed.
B. A. Ovezov   +4 more
doaj   +1 more source

Reduction of Torsional Vibrations Excited by Electromechanical Interactions in More Electric Systems

open access: yesIEEE Access, 2021
This paper studies the excitation of torsional vibrations by electromechanical interaction after the connection of electrical loads. Electrical generation and power system in aircraft are becoming of key importance, especially considering the current ...
Constanza Ahumada, Patrick Wheeler
doaj   +1 more source

Phase-Controlled Thyristor Sub-Synchronous Damper Converter for a Liquefied Natural Gas Plant

open access: yesEnergies, 2021
In electrified liquefied natural gas (LNG) plants variable frequency drives (VFDs) interact with turbine-generator (TG) units creating torsional vibrations known as sub-synchronous torsional interactions (SSTIs). Torsional vibrations can be dangerous for
Lorenzo Bongini   +3 more
doaj   +1 more source

Mechanism Analysis and Suppression Strategy of Torsional Vibrations of DFIG Shaft System Considering Torque Control of Wind Turbine

open access: yesZhongguo dianli, 2022
The shafting model of the doubly-fed induction generator (DFIG) can be equivalent to the wind turbine mass connected to the generator mass via the flexible shaft, and the shaft system has great flexibility and low damping and encounters torsional ...
Sujuan SUN   +5 more
doaj   +1 more source

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