Results 51 to 60 of about 6,789 (263)

Feasibility Study of Electrified Light-Sport Aircraft Powertrains

Aerospace, 2022
A theory-based aerodynamic model developed and applied to electrified powertrain configurations was intended to analyze the feasibility of implementing fully electric and serial hybrid electric propulsion in light-sport aircraft.
Madeline McQueen, Ahmet E. Karataş, Götz Bramesfeld, Eda Demir, Osvaldo Arenas   +4 more
doaj   +1 more source

Collision‐Resilient Winged Drones Enabled by Tensegrity Structures

Advanced Robotics Research, EarlyView.
Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui, Raphael Zufferey, William Stewart, Mohammad Askari, Simon Jeger, Dario Floreano   +5 more
wiley   +1 more source

Energy Optimization Analysis of Turbofan Engine for More-Electric Civil Aircraft

IEEE Access, 2020
The civil aviation industry is moving into the more-electric environment where the civil aircraft uses electricity to meet the multiple energy demands of the associated aircraft subsystems.
Yuanchao Yang, Hao Li, Chen Yu
doaj   +1 more source

Performance–Complexity Trade‐Offs in Battery Lifetime Prediction with Task‐Aware Transformers

Advanced Science, EarlyView.
FAST‐BatPro integrates convolutional feature extraction, flash Attention, and sparse attention for efficient battery lifetime prediction. Using limited early‐cycle data across multiple chemistries and operating conditions, it achieves robust accuracy while reducing inference latency, computational cost, and energy consumption.
Jingyuan Zhao, Misheng Cai, Zhenghong Wang, Yan Wang, Yuqi Li, Bo Dong, Hewu Wang, Andrew F. Burke, Simona Onori, Stephen J. Harris   +9 more
wiley   +1 more source

Modulated Model Predictive Speed Controller for PMSM Drives Employing Voltage-Based Cost Function

IEEE Open Journal of the Industrial Electronics Society
Various electrical drive systems have widely implemented the classical cascaded field-oriented control (FOC) topology, including speed loop, current loop, and modulation.
Ahmed Aboelhassan, Shuo Wang, Giampaolo Buticchi, Vasyl Varvolik, Michael Galea, Serhiy Bozhko   +5 more
doaj   +1 more source

Fundamentals of Thermal Transport and Energy Conversion in Ultra‐High Temperature Ceramics: From Microscale Mechanisms to Macroscopic Properties

Advanced Science, EarlyView.
This review critically examines thermal transport and radiative properties of ultra‐high temperature ceramics for hypersonic flight, advanced nuclear systems, and next‐generation energy conversion devices. It explores phonon–photon–electron interactions, microstructural engineering, thermoelectric conversion, and machine learning‐accelerated multiscale
Zhipeng Pei, Yue Li, Jiayu Xing, Yue Zhu, Ru Zhang, Huan Wu, Zihao Qin, Gang Pei, Man Li   +8 more
wiley   +1 more source

A Folded, Structure‐Integrated Bimodal Sensor Enabling Non‐Contact and Tactile Perception for Intelligent Robots

Advanced Science, EarlyView.
A foldable bimodal sensor integrates a triboelectric nanogenerator and graphene piezoresistive effect into a monolithic laser‐induced graphene film. It enables synchronous non‐contact and tactile perception, achieving a distance of 110 mm, a sensitivity of 11.2 kPa−1, and a response time of 10 ms.
Weixiong Yang, Yuhan Guo, Mingguang Han, Bin Feng, Yuan Ma, Bingang Xu, Fu Liu, Dan Wang, Pingping Hao, Xilun Ding, Sida Luo   +10 more
wiley   +1 more source

Dual internal model control with improved load current feedback for enhanced dynamic performance in aircraft high‐voltage direct current brushless generator

IET Electric Power Applications
In order to enhance the dynamic performance of aircraft high‐voltage direct current wound rotor synchronous generator (WRSG) system under load variations, a dual internal model control (DIMC) method utilising improved load current feedback (ILCF) is ...
Heng Shi, Zhuoran Zhang
doaj   +1 more source

A reliable spacecraft power supply subsystem based on discrete water cycle multi-objective optimization

Franklin Open
The successful execution of spacecraft missions relies heavily on the performance and reliability of their power supply subsystems. Achieving optimal component size and configuration is crucial for efficient power generation, distribution, and storage ...
Ahmed Mokhtar, Mohamed Ibrahim, Mohamed E. Hanafy, Fawzy H. Amer ElTohamy, Wael A. Murtada, Yehia Z. Elhalwagy   +5 more
doaj   +1 more source

Perspectives and Development of Electrical Systems in More Electric Aircraft

International Journal of Aerospace Engineering, 2021
On-board electrical systems are the key components of each modern aircraft. They enable its safer, more comfortable, and environmentally friendlier operation.
Ahmet Yigit Arabul, Emre Kurt, Fatma Keskin Arabul, İbrahim Senol, Martin Schrötter, Róbert Bréda, Dávid Megyesi   +6 more
doaj   +1 more source