Results 41 to 50 of about 1,290,891 (151)

Continuous Movable Layout Parameterisation for Gust Load Alleviation

Engineering Proceedings
This paper extends the continuous movable parameterisation framework to allow for the consideration of gust load alleviation in the movable layout optimisation process.
Stefan de Boer, Jurij Sodja, Roeland De Breuker   +2 more
doaj   +1 more source

Aeronautics lidar revisited – Towards lidar-based gust and turbulence measurement for aircraft load alleviation control [PDF]

EPJ Web of Conferences
We give an overview of the authors' and their institutions' latest R&D activities regarding Direct-Detection Doppler-Wind-Lidar (DD-DWL) for the usage as remote flow sensor on civil aircraft.
Vrancken P., Bizet L., Boulant Th., Cutipa P., Fezans N., Faccioni M., de Haan H., Jentink H., Kiehn D., Kliebisch O., Linsmayer Ph., Lombard L., Lorbeer R., Michel T., Pichon P., Pouillaude J., Pankan A. S., Thurn J., Tump R., Valla M.   +19 more
doaj   +1 more source

Artificial structures for human‐machine interfaces with closed‐loop interaction

FlexMat, EarlyView.
Artificial structures bridge sensing and feedback in closed‐loop human‐machine interfaces by providing geometry‐enabled mechanical and functional programmability. This review maps the role of artificial structures in diverse sensing modalities and feedback strategies, and illustrates their integration into closed‐loop interaction systems, highlighting ...
Taiqi Hu, Taisong Pan, Siqi Chen, Yiting Zhang, Yuan Lin   +4 more
wiley   +1 more source

Lidar-based Gust Load Alleviation - Results Obtained on a Generic Long Range Aircraft Configuration [PDF]

, 2023
In this paper a lidar-based preview gust load alleviation controller is synthesised via modern robust control methods in discrete time and optimised for an industrial long-range aircraft configuration. The synthesis and load analysis is performed using a
Wallace, Christian, Fezans, Nicolas
core   +1 more source

Bio‐inspired vision: From principle, material architectures to system‐level integration

FlexMat, EarlyView.
This review introduces the development and mechanism of electronic and ionic bio‐inspired vision devices respectively. Then, it explores the impact of structure on bio‐inspired visual performance from the scale of intrinsic materials and device. Finally, it concludes that only by combining advanced software and technology can more complex vision ...
Zewan Lin, Miaoyi Xu, Xianda Ma, Weifeng Yang, Yuanlong Shao   +4 more
wiley   +1 more source

Dynamic Performance Enhancement of a High‐Agility Hypersonic Mechanical System via a Learning‐Augmented Robust Control Architecture

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT The design of control systems for high‐agility mechanical systems operating in extreme environments is a significant challenge in nonlinear dynamics. This paper addresses the complex dynamic control problem of a hypersonic interceptor, modeled as a multi‐input multi‐output (MIMO) mechanical system characterized by strong aerodynamic cross ...
Mohammad Mahdi Soori, Seyed Hossein Sadati   +1 more
wiley   +1 more source

Gust Load Alleviation including Geometric Nonlinearities Based on Dynamic Linearization of Structural ROM

International Journal of Aerospace Engineering, 2019
This paper describes a framework for an active control technique applied to gust load alleviation (GLA) of a flexible wing, including geometric nonlinearities.
Chao An, Chao Yang, Changchuan Xie, Yang Meng   +3 more
doaj   +1 more source

Nonstationarity in wildlife disease dynamics: insights from the prairie dog–plague system

Oikos, EarlyView.
Ecological relationships often vary in strength and direction across ecosystems, a pattern that has become increasingly evident as ecology expands to broader spatial and temporal scales. Although such nonstationarity – the changing effect of predictor variables across spatiotemporal contexts – is widely acknowledged in ecological research, it has ...
Gabriel M. Barrile, Joshua F. Layfield, David J. Augustine, Lauren M. Porensky, Courtney J. Duchardt, Imtiaz Rangwala, Ana D. Davidson   +6 more
wiley   +1 more source

Examining the Role of Economic Complexity and Climate Readiness in the Climate‐Fishing Nexus

Sustainable Development, EarlyView.
ABSTRACT This paper investigates the climate‐fisheries association in Gulf Cooperation Council (GCC) nations from 1999 to 2022. A key objective is to explore the role of both the economic complexity index (ECI) and the climate readiness factor (READ) in the climate‐fishing nexus.
Mohamed Sami Ben Ali, Alanoud Al‐Maadid, Hicham Ayad   +2 more
wiley   +1 more source

Optimization of a direct-detection UV wind lidar architecture for 3D wind reconstruction at high altitude [PDF]

Atmospheric Measurement Techniques
An architecture for a UV wind lidar dedicated to measuring vertical and lateral wind in front of an aircraft for gust load alleviation is presented. To optimize performance and robustness, it includes a fiber laser architecture and a Quadri Mach–Zehnder (
T. Boulant, T. Michel, M. Valla
doaj   +1 more source