Results 41 to 50 of about 259,706 (309)

Active Metamaterials with Tunable Shear Nonreciprocity and Nonlinear Dynamics

Advanced Science, EarlyView.
Active gear‐based mechanical metamaterials enable simultaneous control of translational and torsional stiffnesses by 30–100×, break shear reciprocity under positive versus negative loads, broadly tune resonant frequencies, and offer programmable dynamic responses.
Xin Fang, Miao Yu, Dianlong Yu, Li Cheng
wiley   +1 more source

Full-Scale Simulation and Experimental Study of Heat Transfer in Landing Gear Brake Discs for Medium-Sized Passenger Aircraft

Applied Sciences
Aircraft brake discs undergo rapid temperature rises during braking, critically impacting safety, lifespan, and adjacent components. Therefore, it is particularly important to study the heat transfer mechanism during the braking process and predict the ...
Qingtang Meng, Hangming Shen, Bingchu Li, Zongxia Jiao   +3 more
doaj   +1 more source

Light‑Driven Propulsion of Graphene Aerogels in Microgravity

Advanced Science, EarlyView.
Ultralight graphene aerogels convert laser light into thrust. Parabolic‐flight experiments directly compare their motion in microgravity and at 1 g, revealing order‐of‐magnitude enhancements in distance, velocity, and transient thrust when weight and friction are removed (∼50 times enhancement).
Omnia Khattab, Rami Elkaffas, Basel Altawil, Omar Alsuwaidi, Afnan Almubashir, Claire Perfetti, Shanavas Shajahan, Marco Braibanti, Sean Swei, Carlo Saverio Iorio, Yarjan Abdul Samad   +10 more
wiley   +1 more source

Modeling the service life of temporary airfield operational surfaces under multi-pass aircraft trafficking

Transportation Engineering
Expeditionary Airfield (EAF) surfacing systems are designed to create temporary aircraft operating surfaces. Modeling the service life of EAF surfacing systems including the matting system, aircraft, and subgrade, has historically proven difficult ...
R.P. Kinser, T.W. Rushing, A.R. Cisko, Mark E. Barkey, P.G. Allison, J.B. Jordon   +5 more
doaj   +1 more source

Does a fighter pilot live in the danger zone? A risk assessment applied to military aviation

Transportation Research Interdisciplinary Perspectives, 2020
Military aviation is different compared to civil aviation. The two main differences are the operational environment and aircraft characteristics. The United States Air Force (USAF) conducts a range of military operations from rescue missions to full ...
Daniel Alberto Pamplona, Claudio Jorge Pinto Alves   +1 more
doaj   +1 more source

Electrostatic Self‐Assembly Induced Nest‐Like MXene Networks on Fabric for Ultra‐Broadband Flexible Absorption

Advanced Science, EarlyView.
In this study, an electrostatically self‐assembled WPU‐MXene@FC flexible fabric constructs a “nest‐like” structure on fibers, building construct MXene multiple loss paths, achieving ultra‐wideband absorption of 25.3–1200 GHz in a thickness of 1.8 mm, while also exhibiting superhydrophobicity, acid and alkali resistance, and bending resistance ...
Min Luo, Zihao Chen, Haotian Li, Kexun Li, Wei Wang, Weishi Jiao, Donghong Wang, Qiye Wen   +7 more
wiley   +1 more source

Digital collaborative exploration and practice of ground vibration test for full-scale aircraft

Hangkong gongcheng jinzhan
The ground vibration test of full-scale aircraft has the characteristics of multiple coordination units, complex system, long implementation time and high risk.
BAI Chunyu, LIANG Sen, SONG Qiaozhi
doaj   +1 more source

Smart Bioinspired Material‐Based Actuators: Current Challenges and Prospects

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This work gathers, in a review style, an extensive and comprehensive literature overview on the development of autonomous actuators based on synthetic materials, bringing together valuable knowledge from several studies. Furthermore, the article identifies the fundamental principles of actuation mechanisms and defines key parameters to address the size
Alejandro Palacios, Léon Chiriatti, Simon Poppinga, Thomas Speck, Vincent Le Houérou   +4 more
wiley   +1 more source

Progress of active flow control aircraft adopting rudderless flight control and STOL

Advances in Aerodynamics
Active flow control aircraft (AFCA) represent a significant development direction in next-generation aircraft design. Among them, rudderless flight control (RFC) and short takeoff and landing (STOL) are gaining widespread attentions and are gradually ...
Zhijie Zhao, Zhenbing Luo, Xiong Deng, Jianyuan Zhang, Yan Zhou, Wenqiang Peng, Yanbin Feng   +6 more
doaj   +1 more source

Interchangeable Visual Inertial LiDAR Odometry and Mapping Payload Unit for Aerial Vehicles

IEEE Access
This paper presents an aeronautical-grade payload unit designed for real-time execution of visual-inertial-LiDAR odometry and mapping (VILOAM) algorithms.
Ravindu G. Thalagala, Sahan M. Gunawardana, Oscar de Silva, George K. I. Mann, Awantha Jayasiri, Arthur W. Gubbels, Raymond G. Gosine   +6 more
doaj   +1 more source