Results 251 to 260 of about 6,580,241 (312)

A novel indirect-drive regenerative shock absorber for energy harvesting and comparison with a conventional direct-drive regenerative shock absorber

Applied Energy, 2018
Energy harvesting from the shock absorbers is now becoming an important technology in developing the electrical vehicles. Compared with other kinetic energy sources such as engine and brake systems which are continuous or periodic, the shock absorber is ...
Ran Zhang, Xu Wang, Elie Al Shami, S. John, L. Zuo, Chun H. Wang   +5 more
semanticscholar   +1 more source

Direct Wave-Drive Thruster

Journal of Propulsion and Power, 2018
A propulsion concept relying on the direct steady-state acceleration of a plasma by an inductive wave-launching antenna is presented.
Matthew S. Feldman, Edgar Y. Choueiri
openaire   +1 more source

Development and modeling of a polar-direct-drive exploding pusher platform at the National Ignition Facility

Physics of Plasmas, 2018
High-intensity laser facilities, such as the National Ignition Facility (NIF), enable the experimental investigation of plasmas under extreme, high-energy-density conditions.
C. Ellison, H. Whitley, Colin R D Brown, S. Copeland, W. Garbett, H. Le, M. Schneider, Z. B. Walters, Hui-Hwa Chen, J. Castor, R. Craxton, M. Gatu Johnson, E. M. Garcia, F. Graziani, G. Kemp, C. Krauland, P. McKenty, B. Lahmann, J. Pino, M. Rubery, H. Scott, R. Shepherd, H. Sio   +22 more
semanticscholar   +1 more source

Balloon encapsulated direct drive

The Journal of the Acoustical Society of America, 2009
The present invention relates to a receiver module adapted to be positioned in an ear canal. The receiver module comprises a receiver having a receiver housing and expansible means surrounding at least part of the receiver housing, the expansible means having a first opening aligned with an output port of the receiver housing so as to allow for ...
Martin Bondo Jorgensen, Karsten Videbaek
openaire   +1 more source

Direct-drive turbo alternators

Conference Record of the IEEE Industry Applications Society Annual Meeting, 2003
The author reviews economical and practical aspects of alternators operating at gas turbine speed in the size range from 100 kW to 1000 kW. Nonconventional alternators, such as flux-switched inductor Naydyne, external rotor permanent magnet, and switched reluctance alternators, are discussed.
openaire   +1 more source

Direct drive induction motors

Conference Record of 2004 Annual Pulp and Paper Industry Technical Conference (IEEE Cat. No.04CH37523), 2004
For years, the squirrel-cage induction motor has been the motor of choice for the pulp and paper industry, in both sine wave and variable frequency applications. Historically high torque, low speed applications used a combination of a reducer and either a squirrel-cage induction motor or a DC motor. This paper will address the use of an induction motor
S. Evon, R. Schiferl
openaire   +1 more source

Robust Adaptive Current Control of a 1.2-MW Direct-Drive PMSM for Traction Drives Based on Internal Model Control With Disturbance Observer

IEEE Transactions on Transportation Electrification, 2021
Ruifeng Zhang, Zhonggang Yin, Na Du, Jian Liu, Xiangqian Tong   +4 more
semanticscholar   +1 more source

Design and implementation of a loss optimization control for electric vehicle in-wheel permanent-magnet synchronous motor direct drive system

, 2017
As a main driving force of electric vehicles (EVs), the losses of in-wheel permanent-magnet synchronous motor (PMSM) direct drive system can seriously affect the energy consumption of EVs.
Qingbo Guo, Chengming Zhang, Liyi Li, D. Gerada, Jiangpeng Zhang, Mingyi Wang   +5 more
semanticscholar   +1 more source

A Hill-Climbing-Method-Based Maximum-Power-Point-Tracking Strategy for Direct-Drive Wave Energy Converters

IEEE transactions on industrial electronics (1982. Print), 2016
Based on the mechanical model of direct-drive wave energy converters, the relationship among the average output power of a direct-drive wave energy converter, its inherent mechanical impedance, and the equivalent mechanical impedance of the generator is ...
Xi Xiao, Xuanrui Huang, Qing Kang
semanticscholar   +1 more source

Aerospace - Direct Drive Servovalves

2017
<div class="section abstract"> <div class="htmlview paragraph">This SAE Aerospace Recommended Practice (ARP) is intended as a guide to aid in the specification and testing of Direct Drive Servovalves, but does not include the associated electronic controller.</div> <div class="htmlview paragraph">The recommendations contained ...
openaire   +2 more sources