Results 21 to 30 of about 1,947,627 (287)

Nonadaptive estimation of the rotor speed in an adaptive full order observer of induction machine [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2020
The article proposes a new method of reproducing the angular speed of the rotor of a cage induction machine designed for speed observers based on the adaptive method. In the proposed solution, the value of the angular speed of the rotor is not determined
M. Morawiec, P. Kroplewski
doaj   +1 more source

THE IMPACT OF ROAD CONDITIONS ON THE SUSTAINABILITY DECLINE IN THE ROAD TRANSPORT IN THE REPUBLIC OF DAGESTAN

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2016
The article touches upon the theoretical and experimental studies of the influence of the various components of road conditions to reduce the stability of the vehicle, which lead to skidding and rollover.
E. S. Batmanov   +2 more
doaj   +1 more source

A Comparison of Different Techniques for Induction Motor Rotor Fault Diagnosis [PDF]

open access: yes, 2012
The problem of failures in induction motors is a large concern due to its significant influence over industrial production. Therefore a large number of detection techniques were presented to avoid this problem.
Gu, Fengshou   +5 more
core   +1 more source

Using the instantaneous angular speed measurement to characterize the transient dynamic response of an inertial system [PDF]

open access: yes, 2022
The measurement of instantaneous angular speed in flywheels has been used in Internal Combustion Engines for the diagnosis of faults in the fuel injection systems, combustion quality at idle, ignition system, and especially in the performance assessment ...
Andrés Felipe Rodríguez Valencia   +5 more
core   +2 more sources

‘Whip from the hip’: thigh angular motion, ground contact mechanics, and running speed

open access: yesBiology Open, 2020
During high-speed running, lower limb vertical velocity at touchdown has been cited as a critical factor needed to generate large vertical forces. Additionally, greater leg angular velocity has also been correlated with increased running speeds. However,
Kenneth P. Clark   +2 more
doaj   +1 more source

Sensored and sensorless speed control methods for brushless doubly fed reluctance motors [PDF]

open access: yes, 2009
The study considers aspects of scalar V/f control, vector control and direct torque (and flux) control (DTC) of the brushless doubly fed reluctance machine (BDFRM) as a promising cost-effective alternative to the existing technological solutions for ...
Jovanovic, Milutin
core   +1 more source

Orbital angular momentum: origins, behavior and applications [PDF]

open access: yes, 2011
As they travel through space, some light beams rotate. Such light beams have angular momentum. There are two particularly important ways in which a light beam can rotate: if every polarization vector rotates, the light has spin; if the phase structure ...
Padgett, M.J.   +5 more
core   +1 more source

Thickness variation parameter in a thin rotating disc by finite deformation [PDF]

open access: yesFME Transactions, 2013
Seth’s transition theory is applied to the problems of thickness variation parameter in a thin rotating disc by finite deformation. Neither the yield criterion nor the associated flow rule is assumed here.
Pankaj Thakur, Singh S.B., Jatinder Kaur
doaj  

Mathematical model in a thin non-homogeneous rotating disc for isotropic material with rigid shaft by using Seth's transition theory [PDF]

open access: yesKragujevac Journal of Science, 2015
In this paper we investigate stresses and displacement in thin nonhomogeneous rotating disc has been derived by using Seth's Transition theory and results have been discussed and depicted graphically.
Pankaj Thakur   +2 more
doaj   +1 more source

Rotation of electromagnetic fields and the nature of optical angular momentum [PDF]

open access: yes, 2010
The association of spin and orbital angular momenta of light with its polarization and helical phase fronts is now well established. The problems in linking this with electromagnetic theory, as expressed in Maxwell's equations, are rather less well known.
Barnett, Stephen M.
core   +4 more sources

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