Results 31 to 40 of about 27,166 (192)

Fault Tolerant Control of an Experimental Flexible Wing

Aerospace, 2019
Active control techniques are a key factor in today’s aircraft developments to reduce structural loads and thereby enable highly efficient aircraft designs.
Daniel Ossmann, Manuel Pusch
doaj   +1 more source

Integrated optimization of control surface layout for gust load alleviation [PDF]

CEAS Aeronautical Journal, 2019
Considering active gust load alleviation (GLA) during aircraft design offers great potential for structural weight savings. The effectiveness of a GLA control system strongly depends on the layout of available control surfaces, which is investigated in this article.
Pusch, Manuel, Knoblach, Andreas, Kier, Thiemo   +2 more
openaire   +2 more sources

Wind Tunnel Testing of a Passive Gust Load Alleviation Spoiler

AIAA Journal
Gust load alleviation systems have the potential to significantly reduce airframe mass by reducing peak wing root bending moments. However, existing systems are active in that they rely on sensors and actuators to function, which adds weight and ...
E. Wheatcroft, Yusuf Mahadik, R. Groh, A. Pirrera, M. Schenk   +4 more
semanticscholar   +1 more source

Gust loads alleviation of flying wing aircraft based on jet flow control

Kongqi donglixue xuebao
Due to the limitations of mechanical actuation systems, methods involving control surface deflections to address gust loads suffer from low maneuvering efficiency and limited control effectiveness. Considering the poor static stability characteristics of
Yang Mei, Zhiwei Shi, Weiyuan Zhang, Xueqi Liao, Pengyu Guo, Yuhang Xia   +5 more
doaj   +1 more source

Testing of Wing-Tip Spring Device for Gust Loads Alleviation [PDF]

58th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2017
Recent aircraft designs have begun considering higher aspect ratio wings in order to reduce induced drag for improved fuel efficiency. In order to meet airport gate requirements, folding wing-tips have been introduced as a solution to the increased wing-span.
Cheung, R. C M, Castrichini, A., Rezgui, D., Cooper, J. E., Wilson, T.   +4 more
openaire   +2 more sources

Modelling of Folding Wing-Tip Devices for Gust Loads Alleviation [PDF]

2018 AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2018
High aspect ratio wings have been the focus of recent aircraft designs for improved fuel consumption through reducing induced drag. The increase in wing span has also led to folding wing-tips being introduced as a solution for meeting airport gate requirements.
Cheung, R. C.M., Wales, C., Rezgui, D., Cooper, J. E., Wilson, T.   +4 more
openaire   +3 more sources

Model predictive control for gust load alleviation

IFAC Proceedings Volumes, 2012
For economical and ecological reasons aircraft are required to become more efficient by reducing fuel consumption and CO2 emissions. One way to achieve these objectives is to decrease the weight of the aircraft structure. The reduction is, however, limited by the structural requirement that the aircraft must be able to withstand the forces and stress ...
Giesseler, Hans Gerd, Varutti, Paolo, Faulwasser, Timm, Findeisen, Rolf   +3 more
openaire   +4 more sources

Sensitivity Analysis and Optimization of High-Aspect-Ratio Wings with Respect to Mass and Stiffness Distributions

Aerospace
High-aspect-ratio wings improve aerodynamic efficiency but suffer from greater gust-induced loads, requiring innovative design methods for gust load alleviation (GLA).
Eisuke Nakagawa, Natsuki Tsushima, Takahira Aoki, Tomohiro Yokozeki   +3 more
doaj   +1 more source

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

Advanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong, You Zhou, Qingxiu Li, Wenyu Zhao, Sunyingyue Geng, Hangfei Li, Yan‐Bing Leng, Shirui Zhu, Guanglong Ding, Yongbiao Zhai, Ziyu Lv, Ye Zhou, Su‐Ting Han   +12 more
wiley   +1 more source

Neuromorphic Near‐Sensor and In‐Sensor Computing Enabled by Next‐Generation Material‐Based Sensors

Advanced Science, EarlyView.
This Review presents a structural framework that classifies neuromorphic sensing into near‐sensor and in‐sensor architectures, clarifying physical coupling between sensing and computation. The framework connects neural and synaptic device functions with recent advances in optical, mechanical, and chemical sensing, compares energy consumption and ...
Su Yeon Jung, Gwang Ya Kim, Sejin Kim, Hyunjong Seo, Se Gi Lee, Sang Min Won, Dongjoon Rhee, Joohoon Kang   +7 more
wiley   +1 more source