Results 51 to 60 of about 170,878 (300)
Advanced Engineering Materials, EarlyView.A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora +4 more
wiley +1 more source
Limited Angle Torque Motors Having High Torque Density, Used in Accurate Drive Systems
Acta Polytechnica, 2011 A torque motor is a special electric motor that is able to develop the highest possible torque in a certain volume. A torque motor usually has a pancake configuration, and is directly jointed to a drive system (without a gear box). A limited angle torque
R. Obreja, I. R. Edu
doaj
Analysis and Optimal Design of Hybrid Magnetic Circuit Reluctance Direct Drive Motor
IEEE AccessReluctance direct-drive motors have become a hot research topic in recent years due to their high torque density, therefore, this paper proposes a novel hybrid magnetic circuit reluctance direct drive motor (HMRM) to meet the requirements of high torque ...
Fuqiang Wang +3 more
doaj +1 more source
Energies, 2018 We herein propose a novel high-torque-density flux-switching permanent magnet machine (FSPMM) which adopted phase-group concentrated-coil (PGCC) winding and a cogging torque reduction technique. The PGCC winding was applied to increase the torque density.
Jung-Woo Kwon +3 more
doaj +1 more source
IET Electric Power Applications, 2022 The three‐phase permanent magnet synchronous motor (three‐phase PMSM) has gained much popularity in many applications due to its various advantages. In addition, due to the good fault tolerance, simple inverter circuit structure and high torque density ...
Jikai Si +4 more
doaj +1 more source
Transverse Flux Machine—A Review
IEEE Access, 2022 For applications with high torque demand, gearboxes are commonly used to convert torque and speed in order to receive higher specific values for torque and power. This causes additional losses, cost, inaccuracies, effort, and noise.
Benedikt Kaiser, Nejila Parspour
doaj +1 more source
Potential Vorticity Evolution of a Protoplanetary Disk with An Embedded Protoplanet
, 2005 We present two-dimensional inviscid hydrodynamic simulations of a protoplanetary disk with an embedded planet, emphasizing the evolution of potential vorticity (the ratio of vorticity to density) and its dependence on numerical resolutions.
Burton B. Wendroff +8 more
core +2 more sources
The Rayleigh–Taylor instability of two-dimensional high-density vortices [PDF]
, 2005 We investigate the stability of variable-density two-dimensional isolated vortices in the frame of incompressible mixing under negligible gravity. The focus on a single vortex flow stands as a first step towards vortex interactions and turbulent mixing ...
Chassaing, Patrick +2 more
core +3 more sources
Advanced Engineering Materials, EarlyView.This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal +2 more
wiley +1 more source
Spin-Based Neuron Model with Domain Wall Magnets as Synapse
, 2012 We present artificial neural network design using spin devices that achieves ultra low voltage operation, low power consumption, high speed, and high integration density.
Augustine, Charles +3 more
core +1 more source