Results 251 to 260 of about 56,879 (283)

Investigation of Magnetic Drag Torque in Permanent Magnet Brushless Motors

IEEE Transactions on Magnetics, 2007
In permanent magnet (PM) brushless motors, a magnetic drag torque, which results from the effect of magnetic hysteresis, exists at low speeds but is often neglected. However, in some applications it can have potentially serious consequences. In this paper, a practical method for predicting the magnetic drag torque in a PM brushless motor is presented ...
Y. S. Chen, Z. Q. Zhu
openaire   +1 more source

Analysis of Wet Clutch Drag Torque and Optimization of Drag Torque Reduction Measures

2023
Dongyue Qu, Yunpeng Yun, Dongpeng Zhao
openaire   +1 more source

Flight Dynamics of Boomerangs: Impact of Drag Force and Drag Torque

AIAA AVIATION 2020 FORUM, 2020
Prasad Gudem, Martin Laslett, Gino Carfano, Manuel Schütz, Kyle Holland, Hector Murguia   +5 more
openaire   +1 more source

Torque and Drag-Two Factors in Extended-Reach Drilling

Journal of Petroleum Technology, 1994
Summary This paper addresses the various aspects of torque and drag problems encountered in drilling extended-reach wells. It discusses how to use torque and drag calculations and measurements to plan long-reach well profiles, to execute drilling operations that minimize torque and drag effects, to monitor hole ...
openaire   +1 more source

Drag Torque Analysis of Wet Multi-Disc Clutch

The Proceedings of Mechanical Engineering Congress, Japan, 2021
Yuta OSAWA, Shayan Yu Yu, Takuma KATO
openaire   +1 more source

Scientific machine learning in torque and drag drillstring calculations

Extended reach (ER) drilling is a method of directional drilling defined by creating wellbores that stretch horizontally across the surface of the earth for long distances. This has proven to be a particularly useful method in the oil and gas industry, as the extra distance can allow operators to maximize productivity of a well, and also can allow them
openaire   +1 more source

Natural and biomimetic artificial surfaces for superhydrophobicity, self-cleaning, low adhesion, and drag reduction

Progress in Materials Science, 2011
Bharat Bhushan
exaly  

Ultrafast and energy-efficient spin–orbit torque switching in compensated ferrimagnets

Nature Electronics, 2020
Kaiming Cai, Zhifeng Zhu, Jong Min Lee
exaly  

Drag and Torque Prediction Based on Well Trajectory Similarity

2022
Yuanyuan Shen, Zaiming Wang, Wei Song, Xiaofeng Xu, Xiangyin Li   +4 more
openaire   +1 more source

Magnetization switching by spin–orbit torque in an antiferromagnet–ferromagnet bilayer system

Nature Materials, 2016
Shunsuke Fukami, Chaoliang Zhang, Samik Duttagupta   +2 more
exaly