Results 1 to 10 of about 12,175,310 (293)

Nonlinear Comprehensive Decoupling Controller Based on Direct Lift Control for Carrier Landing

open access: yesIEEE Access, 2022
In this study, the direct lift control (DLC) method was introduced into the carrier landing control law. Characterized by quick response and high accuracy, the DLC method can help us overcome the “backhoe” character, reduce the pilot’
Wu Wenhai   +3 more
doaj   +2 more sources

Adaptive fuzzy direct lift control of aircraft carrier-based landing [PDF]

open access: yesXibei Gongye Daxue Xuebao, 2021
Considering the precise landing demand for carrier-based aircraft flight control, this paper proposes an adaptive fuzzy landing control method for the strong time-varying, parameter uncertainty and various complex coupling in the actual state aircraft ...
Xiaoyun Sun   +3 more
doaj   +2 more sources

A Generalized Approach to Operational, Globally Optimal Aircraft Mission Performance Evaluation, with Application to Direct Lift Control

open access: yesAerospace, 2020
A unified approach to aircraft mission performance assessment is presented in this work. It provides a detailed and flexible formulation to simulate a complete commercial aviation mission.
Sam de Wringer   +2 more
doaj   +3 more sources

Research on Direct Lift Carrier-Based Unmanned Aerial Vehicle Landing Control Based on Performance Index Intelligent Optimization/Dynamic Optimal Allocation

open access: yesDrones, 2023
High-precision control problems for carrier-based UAVs are challenging due to the requirements for safety, high-performance operation and uncertain ocean environments.
Dapeng Zhou, Lixin Wang
doaj   +3 more sources

Moving path following with integrated direct lift control for carrier landing

open access: yesAerospace Science and Technology, 2022
Abstract This paper addresses the three dimensional moving path following (MPF) problem, where a vehicle is required to follow a path attached to a moving target in three dimensional space. The MPF problem is divided into guidance and attitude control. For guidance, a non-singular three dimensional MPF law is proposed.
Zewei Zheng, Zhiyuan Guan
exaly   +2 more sources

Direct Lift Control: A review of its principles, merits, current and future implementations [PDF]

open access: yesProgress in Aerospace Sciences
Direct Lift Control (DLC) is the capability to directly and intentionally influence lift on a fixed-wing aircraft by means of aerodynamic control devices, with minimum change of its angle of attack. Although several definitions exist, with various degrees of ambiguity, the combination of DLC and pitch attitude control has unambiguously proven to reduce
Carmine Varriale   +2 more
exaly   +2 more sources

Carrier-Based Aircraft Precision Landing Using Direct Lift Control Based on Incremental Nonlinear Dynamic Inversion

open access: yesIEEE Access, 2022
Conventional direct lift control (DLC) design in carrier landing is not accepted by pilots since it is not fully decoupled and has heavy control burden.
Fei Luo   +4 more
doaj   +1 more source

Lift Force Measurement in Landing Gears Dynamic Tests

open access: yesFatigue of Aircraft Structures, 2021
As one of the key components of the aircraft in terms of both operation and safety landing gears are of special interest of the aviation regulations. During the touch down landing gears need to dissipate as much of the energy as possible maintaining the ...
Skorupka Zbigniew
doaj   +1 more source

Design and Analyze a New Measuring Lift Device for Fin Stabilizers Using Stiffness Matrix of Euler-Bernoulli Beam. [PDF]

open access: yesPLoS ONE, 2017
Fin-angle feedback control is usually used in conventional fin stabilizers, and its actual anti-rolling effect is difficult to reach theoretical design requirements.
Lihua Liang   +3 more
doaj   +1 more source

Laser-Induced Forward Transfer: A Method for Printing Functional Inks

open access: yesCrystals, 2020
Laser-induced forward transfer (LIFT) is a direct-writing technique based in the action of a laser to print a small fraction of material from a thin donor layer onto a receiving substrate.
J. Marcos Fernández-Pradas, Pere Serra
doaj   +1 more source

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