Results 31 to 40 of about 1,737,791 (396)

A Graph-Data-Based Monitoring Method of Bearing Lubrication Using Multi-Sensor

open access: yesLubricants
Super-precision bearing lubrication condition is essential for equipment’s overall performance. This paper investigates a monitoring method of bearing lubrication using multi-sensors based on graph data.
Xinzhuo Zhang   +5 more
doaj   +1 more source

Optimal design of stator and rotor slot of induction motor for electric vehicle applications

open access: yesIET Electrical Systems in Transportation, 2019
The performance requirement of a squirrel cage induction motor (IM) for application in electric vehicle (EV), with high efficiency, power factor and breakdown torque, is a challenging task for a machine designer.
M. J. Akhtar, R. Behera
semanticscholar   +1 more source

Comparison of Induction and PM Synchronous motor drives for EV application including design examples [PDF]

open access: yes, 2012
Three different motor drives for electric traction are compared, in terms of output power and efficiency at the same stack dimensions and inverter size. Induction motor (IM), surface-mounted permanent-magnet (PM) (SPM), and interior PM (IPM) synchronous ...
Boazzo, Barbara   +3 more
core   +1 more source

Rotor Temperature Safety Prediction Method of PMSM for Electric Vehicle on Real-Time Energy Equivalence

open access: yesMathematical Problems in Engineering, 2020
The load capacity of the permanent magnet synchronous motor is limited by the rotor temperature, and the excessive temperature of the rotor will bring potential thermal safety problems of the system.
Anjian Zhou   +4 more
semanticscholar   +1 more source

The influence of temperature on ultrasonic signals in online measurement of oil film thickness

open access: yesFriction
Ultrasonic reflection provides a real-time way to monitor oil film thickness in a running machine with a nondestructive advantage. However, the influence mechanism of temperature on reference signals has not been clarified thus far, which hinders the ...
Yaping Jia   +6 more
doaj   +1 more source

Trade-off analysis and design of a Hydraulic Energy Scavenger [PDF]

open access: yes, 2012
In the last years there has been a growing interest in intelligent, autonomous devices for household applications. In the near future this technology will be part of our society; sensing and actuating will be integrated in the environment of our houses ...
Boero, Diego   +4 more
core   +2 more sources

AUTOMATION OF DRILLING RIG ROTOR ELECTRIC DRIVE

open access: yesGrail of Science, 2022
This work is devoted to the automation of the electric drive of the drilling rig winch. The technical characteristics and features of the winch drilling rig are also considered. The synthesis of the automatic control system was made, the calculation of the parameters of the speed controller and the analysis of the dynamics of the electric drive were ...
Ivan Biliuk   +5 more
openaire   +1 more source

Multi-body dynamic and finite element analysis based shape optimization of flexible connection structure of On-Load Tap Changer for minimizing transient stress using Adaptive Single-Objective method

open access: yesInternational Journal of Electrical Power & Energy Systems
On-Load Tap-Changer (OLTC) is the only core equipment in the ultra-high voltage (UHV) converter transformer that moves frequently, and flexible connection structure (FCS) is the moveable actuating part of the vacuum interrupter drive mechanism of OLTC ...
Yicong Zhou   +7 more
doaj   +1 more source

Design and analysis of outer rotor in-wheel motor for micro-electric vehicle

open access: yesAdvances in Mechanical Engineering, 2017
In order to improve the working performance and service life of the in-wheel motor for micro-electric vehicle, the outer rotor in-wheel motor of micro-electric vehicle is designed and the model is analyzed, which are based on the theory of ...
Qiping Chen   +6 more
doaj   +1 more source

Bistable molecular conductors with a field-switchable dipole group

open access: yes, 2002
A class of bistable "stator-rotor" molecules is proposed, where a stationary bridge (stator) connects the two electrodes and facilitates electron transport between them.
A. M. Bratkovsky   +16 more
core   +1 more source

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