Results 21 to 30 of about 7,102 (219)

Modelling Green VTOL Concept Designs for Reliability and Efficiency

Designs, 2021
All-electric and hybrid-electric aircraft are a future transport goal and a possible ‘green’ solution to increasing climate-related pressures for aviation.
Julian David Booker, Caius Patel, Phillip Mellor   +2 more
doaj   +1 more source

Automated Maximum Torque per Ampere Identification for Synchronous Reluctance Machines with Limited Flux Linkage Information

Machines
The synchronous reluctance machine is well-known for its highly nonlinear magnetic saturation and cross-saturation characteristics. For high performance and high-efficiency control, the flux-linkage maps and maximum torque per ampere table are of ...
Shuo Wang, Vasyl Varvolik, Yuli Bao, Ahmed Aboelhassan, Michele Degano, Giampaolo Buticchi, He Zhang   +6 more
doaj   +1 more source

Market and Technological Perspectives for the New Generation of Regional Passenger Aircraft

Energies, 2019
This article describes the extent to which hybrid aircraft and all-electric aircraft can present a solution for reducing HC, CO, and NO x emissions and noise in the vicinity of airports, in the category of regional passenger aircraft. The goal of
Anita Prapotnik Brdnik, Rok Kamnik, Maršenka Marksel, Stanislav Božičnik   +3 more
doaj   +1 more source

Research on Large Hybrid Electric Aircraft Based on Battery and Turbine-Electric

Energies
Hybrid electric aircraft use traditional engine and electric propulsion combinations to optimize aircraft architecture, improve propulsion efficiency, and reduce fuel consumption. As a new technology, the fuel and energy consumption calculation of hybrid
Yannian Hui, Hongliang Li, Jianyun Chai, Yuanli Kang   +3 more
doaj   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

Hybrid Electric Aircraft Propulsion Case Study for Skydiving Mission

Aerospace, 2017
This paper describes a case study for applying innovative architectures related to electrified propulsion for aircraft. Electric and hybrid electric propulsion for aircraft has gained widespread and significant attention over the past decade.
Richard Glassock, Michael Galea, Warren Williams, Tibor Glesk   +3 more
doaj   +1 more source

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

Advanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar, Akash Vyas, Mohammad Aatif Qazi, Nashit Jalal, Maria Ophelia Jarligo, Mostafa Yakout, Jing Liu, André McDonald   +7 more
wiley   +1 more source

A Novel Robust Model Predictive Controller for Aerospace Three-Phase PWM Rectifiers

Energies, 2018
This paper presents a novel Model Predictive Direct Power Control (MPDPC) approach for the pulse width modulation (PWM) rectifiers in the Aircraft Alternating Current Variable Frequency (ACVF) power system.
Tao Lei, Weiwei Tan, Guangsi Chen, Delin Kong   +3 more
doaj   +1 more source

Toward more electric powertrains in aircraft: Technical challenges and advancements

CES Transactions on Electrical Machines and Systems, 2021
The main purpose of this article is to provide an instructive review of the technological challenges hindering the road toward more electric powertrains in aircraft.
Joseph Benzaquen, JiangBiao He, Behrooz Mirafzal   +2 more
doaj   +1 more source

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

Advanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source