Results 11 to 20 of about 69,703 (289)
Lubricants, 2023 The reason for the failure of electric vehicle drives is increasingly current-induced damage to rolling bearings. Studies show that rolling bearings are more susceptible to current pass-through after the first occurrence of unwanted bearing currents.
Steffen Puchtler +3 more
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Electrical Bearing Damage, A Problem in the Nano- and Macro-Range
Lubricants, 2022 Rolling bearings face different damaging effects: Besides mechanical effects, current-induced bearing damage occurs in electrical drive systems. Therefore, it is of increasing interest to understand the differences leading to known electrical damage ...
Volker Schneider +9 more
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IEEE 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
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Lubricants, 2023 Within this paper, electro-mechanical long-term tests on a thrust bearing were presented. The effects of an additional electrical load on the bearing raceways and the used lubricant were investigated.
Simon Graf, Oliver Koch, Bernd Sauer
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Wave Profile for Anti-force Waves with Maximum Possible Currents [PDF]
, 2015 In the theoretical investigation of the electrical breakdown of a gas, we apply a one-dimensional, steady state, constant velocity, three component fluid model and consider the electrons to be the main element in propagation of the wave. The electron gas
Childs, W. P. +3 more
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Zbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2016 The paper presents an analyses of shaft voltage and bearing current phenomena in electrical machines. An overview of the causes of these voltages and currents and their possible consequences is also given. The influence of the thyristor excitation system
Klasnić Ilija +2 more
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Suppression of common-mode voltage in a PWM rectifier/inverter system [PDF]
, 2001 This paper proposes a PWM rectifier/inverter system capable of suppressing not only supply harmonic currents but also electromagnetic interference (EMI).
Akagi, Hirofumi, Ogasawara, Satoshi
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Current-carrying friction in carbon coated ball bearing
Friction, 2023 In this work, we proposed a method for coating the whole surfaces of bearing balls uniformly by carbon film with a rotatable ball clamp. We studied the carbon/carbon friction with a self-designed current-carrying ball bearing friction test system.
Peidong Xue +3 more
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Fluid flow near reservoir lakes inferred from the spatial and temporal analysis of the electric potential [PDF]
, 2002 Electric self-potential (SP) variations have been monitored continuously from 1995 to 1998 at 14 points on a ridge separating the Roselend and La Gittaz reservoir lakes in the French Alps.
Avouac, Jean-Philippe +4 more
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PM fractional machines adopting bonded magnets: effect of different magnetizations on the energetic performance [PDF]
, 2012 The adoption of Permanent Magnets in small brushless machines for automotive applications is becoming frequent. Some research on bonded magnets is being carried on to substitute the ferrites.
Ferraris, Luca +3 more
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