Results 271 to 280 of about 2,185,278 (306)

Formulas for magnetic hysteresis losses

Electrical Engineering, 1933
This article describes an investigation to determine the magnetic properties of different grades of silicon sheet steel when symmetrically and unsymmetrically magnetized; from the results a formula has been derived which should be of value in designing electrical apparatus used in circuits where alternating and direct currents are superposed.
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Frequency scaling of excess hysteresis losses

INTERMAG 2000 Digest of Technical Papers. 2000 IEEE International Magnetics Conference, 2000
The existence of excess hysteresis losses is discussed. It is emphasized that the excess hysteretic losses are caused by some intrinsic nonlinear dynamics underlying bistable (multistable) behavior associated with hysteresis. By using the mathematical formalism of the Preisach model of hysteresis and some known, results on nonlinear bistable dynamics ...
MAYERGOYZ I. D., SERPICO, CLAUDIO
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Hysteresis losses in rolling and sliding friction

Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1961
Abstract Previous work on the mechanism of rolling friction has shown that it is mainly due to elastic hysteresis losses in the rolling elements. Under conditions of uniform tension or torsion it is generally assumed that the energy dissipated by hysteresis is a constant fraction (the hysteresis loss factor) of the elastic energy ...
J. A. Greenwood, H. Minshall, David Tabor   +2 more
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Commercial Testing of Sheet Iron for Hysteresis Loss

Transactions of the American Institute of Electrical Engineers, 1911
The desirability of being able to determine quickly and with reasonable accuracy and cost the hysteresis and eddy losses in sheet iron for use in transformers and other alternating current apparatus is fully appreciated and need not be discussed.
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Rotational hysteresis losses in isotropic media

IEEE Transactions on Magnetics, 1999
A simple method of measuring magnetic rotational hysteresis losses in isotropic media is described. The method involves measuring the angular deceleration of a sample set rotating in a magnetic field. By using air bearings to minimise friction and allowing the moment of inertia of the rotating system to be varied, a maximum sensitivity of 10/sup -6/ J ...
S.A. Harrison, R. Street, J.R. Budge, S.K. Jones   +3 more
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Hysteresis losses in the friction of lubricated rubber

Wear, 1960
Abstract The main point brought out in this paper is that when well lubricated rubber surfaces slide over hard protuberances the major part of the resistance to sliding may well arise from hysteretic losses in the rubber itself. Any factor, such as temperature or frequency of deformation, which affects the hysteresis losses will have a ...
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Hysteresis in the determination of the heat-loss number

Thermochimica Acta, 1996
Abstract The heat-loss number is a dimensionless group that accounts for heat losses in the evaluation of calorimetric experiments. It is obtained with steady-state measurements at various temperatures in the range of interest. It was established that this parameter is highly dependent on the direction of temperature variation, which affects the ...
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A Hysteresis Loss Model for Tellinen’s Scalar Hysteresis Model

2021
Jan Kühn, Andreas Bartel, Piotr Putek
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Hysteresis Losses and the Area of the Hysteresis Loop

Physical Review, 1934
L. W. McKeehan, R. M. Bozorth
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A Dynamic Hysteresis Model for Loss Estimation of GO Silicon Steel Under DC-Biased Magnetization

IEEE Transactions on Industry Applications, 2021
Xiaojun Zhao, Lin Li, Xiaojun Zhao
exaly