Results 61 to 70 of about 4,058 (217)

Investigations on Spin Power Losses Generated in a Planetary Gear Set Using Thermal Network Method

Lubricants
This paper introduces an experimental approach to study the distribution of power losses in an oil jet-lubricated planetary gear set, with the aim of increasing the efficiency of these gearboxes.
Marie Winger, Yann Marchesse, Thomas Touret, Christophe Changenet, Fabrice Ville, Patrice Gédin   +5 more
doaj   +1 more source

Reduction of losses in dual‐permanent‐magnet‐excited Vernier machine by segmented stator for electric aircraft

IET Electric Power Applications, Volume 18, Issue 12, Page 1740-1751, December 2024.
The authors present a low‐loss dual‐permanent‐magnet‐excited vernier (DPMEV) machine with segmented stator design to meet the requirements of electric aircraft. Based on the field modulation theory, it can ensure that the segmented DPMEV machine reduces iron loss without sacrificing torque performance.
Jinghua Ji, Chen Jia, Wenxiang Zhao, Zhijian Ling, Yu Zeng, Zongwang Li   +5 more
wiley   +1 more source

Performance and Loss Analysis of Squirrel Cage Induction Machine Based Flywheel Energy Storage System [PDF]

, 2019
Flywheel energy storage systems (FESS) are one of the earliest forms of energy storage technologies with several benefits of long service time, high power density, low maintenance, and insensitivity to environmental conditions being important areas of ...
Breeze, Chapman, Diaz-Gonzalez, Faraji, Harris, Kim, Krack, Liu, Popescu, Pyrhnen, Recheis, Ruddell, Shelke, Tamura, Thoolen   +14 more
core   +1 more source

3D flux configuration cost effective switched reluctance motor with small torque ripple content; design and prototyping

IET Electric Power Applications, Volume 18, Issue 12, Page 1939-1947, December 2024.
Proposing a new 3D flux configuration of reluctance motor which strongly reduces torque ripple and low manufacturing costs has been set and addressed here as the main objective of this study. Abstract Switch reluctance motors (SRMs) have many advantages, such as easy construction, high reliability, low cost, and higher energy efficiency compared to the
Hassan Sayyaadi, Amir Abbas Turani, Reza Nasiri Zarandi   +2 more
wiley   +1 more source

Spur-Gear-System Efficiency at Part and Full Load [PDF]

A simple method for predicting the part- and full-load power loss of a steel spur gearset of arbitrary geometry supported by ball bearings is described. The analysis algebraically accounts for losses due to gear sliding, rolling traction, and windage in ...
Anderson, N. E., Loewenthal, S. H.
core   +1 more source

Fan Performance Analysis for Rotor Cooling of Axial Flux Permanent Magnet Machines [PDF]

, 2017
The thermal management of an Axial Flux Permanent Magnet (AFPM) machine is essential because it determines the machine’s continuous power output and reliability.
Blundell, Mike, Cirstea, Remus M., Dickison, Mike, Fawzal, A. S., Gyftakis, Konstantinos N., Woolmer, Tim J.   +5 more
core   +1 more source

Simulating drifting fish aggregating device trajectories to identify potential interactions with endangered sea turtles

Conservation Biology, Volume 38, Issue 6, December 2024.
Abstract Purse‐seine fishers using drifting fish aggregating devices (dFADs), mainly built with bamboo, plastic buoys, and plastic netting, to aggregate and catch tropical tuna, deploy 46,000–65,000 dFADs per year in the Pacific Ocean. Some of the major concerns associated with this widespread fishing device are potential entanglement of sea turtles ...
Lauriane Escalle, J. Scutt Phillips, J. Lopez, J. M. Lynch, H. Murua, S. J. Royer, Y. Swimmer, J. Murua, Alex Sen Gupta, V. Restrepo, G. Moreno   +10 more
wiley   +1 more source

Dual‐inertia flywheel energy storage system for electric vehicles

IET Electric Power Applications, Volume 18, Issue 10, Page 1370-1381, October 2024.
Introducing a novel adaptive capacity energy storage concept based on the Dual‐Inertia Flywheel Energy Storage System for battery‐powered Electric Vehicles and proposing a hierarchical Energy Management System/sizing framework. Abstract Managing the high‐rate‐power transients of Electric Vehicles (EVs) in a drive cycle is of great importance from the ...
Abbas Mehraban, Teymoor Ghanbari, Ebrahim Farjah   +2 more
wiley   +1 more source

Effect of geometry and operating conditions on spur gear system power loss [PDF]

The results of an analysis of the effects of spur gear size, pitch, width, and ratio on total mesh power loss for a wide range of speeds, torques, and oil viscosities are presented. The analysis uses simple algebraic expressions to determine gear sliding,
Anderson, N. E., Loewenthal, S. H.
core   +1 more source

Numerical Analysis of Flow Field in Generator End-Winding Region

International Journal of Rotating Machinery, 2008
Cooling in an end-winding region of a high-powered, large-sized generator still remains a challenge today because of a number of factors: a larger number of parts/components with irregular geometries, complexity in cooling flow paths, flow splitting and ...
Wei Tong
doaj   +1 more source