Results 11 to 20 of about 1,860 (214)

Rotational bistable mechanisms for morphing wings and beyond [PDF]

open access: yesCommunications Engineering
Low-energy-use morphing structures can greatly impact various engineering disciplines. In aeronautics, aircraft wings must adapt to diverse flight conditions to ensure optimally shaped wings for enhanced performance, maneuverability, and efficiency ...
Kaveh Barri   +5 more
doaj   +2 more sources

Design and applications of morphing aircraft and their structures

open access: yesFrontiers of Mechanical Engineering, 2023
AbstractMorphing aircraft can adaptively regulate their aerodynamic layout to meet the demands of varying flight conditions, improve their aerodynamic efficiency, and reduce their energy consumption. The design and fabrication of high-performance, lightweight, and intelligent morphing structures have become a hot topic in advanced aircraft design. This
Jihong Zhu, Weihong Zhang, Xiaojun Gu
exaly   +2 more sources

Attention-Based Multi-Objective Control for Morphing Aircraft. [PDF]

open access: yesBiomimetics (Basel)
This paper proposes a learning-based joint morphing and flight control framework for avian-inspired morphing aircraft. Firstly, a novel multi-objective multi-phase optimal control problem is formulated to synthesize the comprehensive flight missions, incorporating additional requirements such as fuel consumption, maneuverability, and agility of the ...
Fu Q, Sun C.
europepmc   +4 more sources

Virtual Sensor for Failure Detection, Identification and Recovery in the Transition Phase of a Morphing Aircraft [PDF]

open access: yesSensors, 2010
The Helicopter Adaptive Aircraft (HADA) is a morphing aircraft which is able to take-off as a helicopter and, when in forward flight, unfold the wings that are hidden under the fuselage, and transfer the power from the main rotor to a propeller, thus ...
Guillermo Heredia, Aníbal Ollero
doaj   +2 more sources

CGull: A Non-Flapping Bioinspired Composite Morphing Drone [PDF]

open access: yesBiomimetics
Despite the tremendous advances in aircraft design that led to successful powered flights of aircraft as heavy as the Antonov An-225 Mriya, which weighs 640 tons, or as fast as the NASA-X-43A, which reached a record of Mach 9.6, many characteristics of ...
Peter L. Bishay   +11 more
doaj   +2 more sources

Rigid–Elastic Coupling Dynamics of Morphing Wing Aircraft [PDF]

open access: yesAerospace
This paper presents a rigid–elastic coupling dynamic model for a morphing aircraft with variable-sweep wings, developed using Kane’s method. The model accurately captures the interactions between flight dynamics and structural dynamics during morphing ...
Siyu Hua, Xugang Wang, Zhongyuan Wang
doaj   +2 more sources

Status and Perspectives of Commercial Aircraft Morphing [PDF]

open access: yesBiomimetics, 2021
In a previous paper, the authors dealt with the current showstoppers that inhibit commercial applicability of morphing systems. In this work, the authors express a critical vision of the current status of the proposed architectures and the needs that should be accomplished to make them viable for installation onboard of commercial aircraft.
Michelangelo Giuliani   +4 more
openaire   +5 more sources

Design and analysis of a linear servo-actuated variable-span morphing wing [PDF]

open access: yesINCAS Bulletin, 2020
Morphing aircraft are multi-role aircraft that change their external shape substantially to adapt to a changing mission environment during flight.
Aynul HOSSAIN, Wei WANG, Hailong YUE
doaj   +1 more source

On the Experimental Characterization of Morphing Structures [PDF]

open access: yes, 2022
S.683-712A major difficulty in the design of morphing devices for aircraft wings is to reach an adequate compromise between high load-carrying capacity to withstand aerodynamic loads and sufficient flexibility to achieve better aerodynamic performance ...
Schueller, M.   +5 more
core   +1 more source

Analysis of the Short-Term Dynamics of Morphing Aircraft Caused by Shape Change Based on the Open-Loop Response and the Reachable Set Theory

open access: yesAerospace, 2023
This work investigates the short-term dynamics caused by shape changes of morphing aircraft. We select a symmetric variable sweep morphing aircraft as the object of study and establish a six-degree-of-freedom multi-loop cascade model, and the coupling ...
Fuming Xia, Bo Jing, Wenfeng Xu
doaj   +1 more source

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