Results 11 to 20 of about 1,252,707 (292)

Effect of wing flexibility on aircraft flight dynamics [PDF]

open access: yes, 2012
The purpose of this thesis is to give a preliminary investigation into the effect of wing deformation on flight dynamics. The candidate vehicle is FW-11 which is a flying wing configuration aircraft with high altitude and long endurance characteristics ...
Qiao, Yuqing
core   +7 more sources

Bio-Inspired Internal Stress Engineering for Microscale Surface Cracking in Sensitive Strain Sensors. [PDF]

open access: yesAdv Sci (Weinh)
This study presents a bio‐inspired internal stress engineering strategy to fabricate highly sensitive crack‐based strain sensors. By harnessing the internal expansion energy of microspheres and the thickness‐dependent brittle‐to‐ductile transition of ultrathin gold films, tunable microscale cracks are generated.
Jang JY, Cho H, Jung Y.
europepmc   +2 more sources

Dynamics modeling and flight characteristics of folded multi-body aircraft

open access: yesXibei Gongye Daxue Xuebao, 2023
This paper studies the dynamic modeling method of fold-able multi-body aircraft based on the dynamics theory of multi-body system. Considering the multi-body aircraft as a complete multi-rigid body system, the dynamic model for the free unfolding process
WANG Yu, ZHU Xiaoping, ZHOU Zhou
doaj   +1 more source

Simulated pilot-in-the-loop testing of handling qualities of the flexible wing aircraft

open access: yesAviation, 2020
This article aims to indicate the differences between rigid and flexible wing aircraft flying (FQ) and handling (HQ) qualities. The Simulation Framework for Flexible Aircraft was used to provide a generic cockpit environment and a piloted mathematical ...
Vilius Portapas, Alastair Cooke
doaj   +1 more source

Flight Training Syllabus Structure Impact on Proactive Planning of High-Performance Military Aircraft Pilot Training Operations in Flexible Airspace Structures

open access: yesPromet (Zagreb), 2022
European airspace is marked by fragmentation, and from fragmentation originated congestion. As an answer to congestion, flexible use of airspace is created to fulfil all users’ requirements optimally, and at its very core lies civil-military cooperation ...
Nikola Mostarac   +3 more
doaj   +1 more source

A Substructure Synthesis Method with Nonlinear ROM Including Geometric Nonlinearities

open access: yesAerospace, 2021
Large flexible aircraft are often accompanied by large deformations during flight leading to obvious geometric nonlinearities in response. Geometric nonlinear dynamic response simulations based on full-order models often carry unbearable computing burden.
Chao An   +3 more
doaj   +1 more source

Trajectory Control for Very Flexible Aircraft [PDF]

open access: yesJournal of Guidance, Control, and Dynamics, 2006
This paper focuses on trajectory control of the 6-DOF body flxed reference frame located on a very ∞exible aircraft. The 6-DOF equations of motion of a reference point on the aircraft are coupled with the aeroelastic equations that govern the geometrically nonlinear structural response of the vehicle.
Shearer, Christopher   +1 more
openaire   +2 more sources

Force controlled assembly of flexible aircraft structure [PDF]

open access: yes2011 IEEE International Conference on Robotics and Automation, 2011
The use of industrial robots in the aircraft industry has been hampered by a combination of poor accuracy of the robots and poor calibration of the workcell, and also manufacturing variability in composite parts. A way to handle these difficulties is using force control. An experimental case where a semi-compliant rib is aligned to multiple surfaces is
Andreas Stolt   +4 more
openaire   +2 more sources

Singular perturbation decomposition-based ride quality control of elastic aircraft

open access: yesXibei Gongye Daxue Xuebao, 2023
Considering the reduction of ride comfort under wind disturbance, the ride quality control method based on singular perturbation decomposition is proposed.
LI Zhaoxing   +4 more
doaj   +1 more source

Adaptive output feedback control of aircraft flexible modes [PDF]

open access: yes, 2012
The application of adaptive output feedback augmentative control to the flexible aircraft problem is presented. Experimental validation of control scheme was carried out using a three disk torsional pendulum.
Joel Bordeneuvue Guibe   +3 more
core   +1 more source

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