Results 21 to 30 of about 116,465 (358)

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

Lubricants
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, Xuhua Zhang, Linbo Zhu, Chuang Gao, Bo Ning, Yongsheng Zhu   +5 more
doaj   +1 more source

An Integral Battery Charger with Power Factor Correction for Electric Scooter [PDF]

, 2009
This paper presents an integral battery charger for an electric scooter with high voltage batteries and interior-permanent-magnet motor traction drive.
Armando, Eric Giacomo, Guglielmi, Paolo, Pellegrino, Gian-Mario Luigi   +2 more
core   +2 more sources

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

Friction
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, Pan Dou, Peiping Yang, Tonghai Wu, Shuo Wang, Yaguo Lei, Min Yu   +6 more
doaj   +1 more source

Design and Performance Analysis of Super Highspeed Flywheel Rotor for Electric Vehicle

World Electric Vehicle Journal, 2022
The optimal design of a super highspeed flywheel rotor could improve flywheel battery energy density. The improvement of flywheel battery energy density could enhance the performance of the flywheel lithium battery composite energy storage system ...
Pengwei Wang, Tianqi Gu, Binbin Sun, Ruiyuan Liu, Tiezhu Zhang, Jinshan Yang   +5 more
doaj   +1 more source

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

, 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, Guglielmi, Paolo, Pellegrino, Gian-Mario Luigi, Vagati, Alfredo   +3 more
core   +1 more source

AUTOMATION OF DRILLING RIG ROTOR ELECTRIC DRIVE

Grail 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, Oleh Savchenko, Serhii Havrylov, Dmitro Shareyko, Oleksandr Maiboroda, Andrii Fomenko   +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

International 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, Yichen Wang, Ke Wang, Shuqi Zhang, Jinhua Zhang, Qiyin Lin, Jun Hong, Yi Xiao   +7 more
doaj   +1 more source

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

Advances 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, Qiang Xiao, Chuanjie Liao, Liping Zeng, Xiangqin Li, Juanlin Huang, Conghui Zhou   +6 more
doaj   +1 more source

Optimal design of a three-phase AFPM for in-wheel electrical traction [PDF]

, 2014
Sinusoidally fed permanent magnet synchronous motors (PMSM) fulfill the special features required for traction motors to be applied in electric vehicles (EV).
Riba Ruiz, Jordi-Roger, Romeral Martínez, José Luis, Saavedra Ordóñez, Harold   +2 more
core   +1 more source

Bistable molecular conductors with a field-switchable dipole group

, 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, C.P. Collier, C.P. Collier, C.P. Collier, D.I. Gittins, H. Sellers, J. Park, J. Reichert, L.A. Bumm, M.A. Reed, P. E. Kornilovitch, P. E. Kornilovitch, P.E. Kornilovitch, R. Stanley Williams, S. Sanvito, W. Liang, X.D. Cui   +16 more
core   +1 more source