An approach to reduce vibration and avoid shimmy on landing gears based on an adapted eigenstructure assignment theory
Sign Up to like & getrecommendations! Published in 2019 at "Meccanica"
DOI: 10.1007/s11012-019-01101-4
Abstract: Landing gear shimmy is a self excited vibration phenomenon which must be avoided during aircraft design due to its potentially catastrophic behaviour. In a preliminary specification of structural properties of a landing gear, if shimmy… read more here.
Keywords: system; landing gear; eigenstructure assignment; theory ... See more keywords
Taxiing stability verification and airworthiness certification for amphibious aircraft
Sign Up to like & getrecommendations! Published in 2018 at "Science China Information Sciences"
DOI: 10.1007/s11432-018-9580-3
Abstract: Dear editor, Taxiing stability is an important issue in modern civil aircraft development and airworthiness certification. Incidents or abnormal problems consistently arise during aircraft taxiing, as a result of landing gear “walking”, shimmying, and taxiing… read more here.
Keywords: taxiing stability; landing gear; amphibious aircraft; airworthiness ... See more keywords
Control strategy of launch vehicle and lander with adaptive landing gear for sloped landing
Sign Up to like & getrecommendations! Published in 2019 at "Acta Astronautica"
DOI: 10.1016/j.actaastro.2019.03.073
Abstract: Abstract The ability to perform safe landing is of great concern for reusable launch vehicles and landers; however, sloped terrains severely limit the degree of landing safety. To ensure that the launch vehicle and lander… read more here.
Keywords: landing gear; landing; launch vehicle; adaptive landing ... See more keywords
Investigation of gear walk suppression while maintaining braking performance in a main landing gear
Sign Up to like & getrecommendations! Published in 2019 at "Aerospace Science and Technology"
DOI: 10.1016/j.ast.2019.05.026
Abstract: Abstract In this paper, a nonlinear dynamic landing gear model considering the influence of the coupling of the shock absorber stroke variation and the landing gear longitudinal motion with an anti-skid PID braking control system… read more here.
Keywords: gear walk; landing gear; maintaining braking; braking performance ... See more keywords
Failure analysis of the nose landing gear axle of an aircraft
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DOI: 10.1016/j.engfailanal.2019.03.010
Abstract: Abstract Landing gears of aircrafts are an essential part of the safety systems of aircrafts concerning take-off and landing. Unfortunately, several failure analysis of landing gears have been reported on literature, therefore for safety reasons… read more here.
Keywords: nose landing; aircraft; landing gear; failure ... See more keywords
Using continuation analysis to identify shimmy-suppression devices for an aircraft main landing gear
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Sound and Vibration"
DOI: 10.1016/j.jsv.2017.07.028
Abstract: Abstract This paper considers several passive shimmy-suppression devices for a dual-wheel main landing gear (MLG) and proposes a method of selecting the device parameter values for which no shimmy occurs. Two of these devices include… read more here.
Keywords: shimmy suppression; main landing; landing gear; suppression devices ... See more keywords
Wavelet analysis of multiple tonal phenomena generated from a simplified nose landing gear and a ring cavity
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Sound and Vibration"
DOI: 10.1016/j.jsv.2019.114980
Abstract: Abstract Discrete tones exist in the airframe noise spectra. For landing gear components, some cavities may generate multiple tones. The tonal frequencies can be accurately predicted and two different tonal noise generation mechanisms have been… read more here.
Keywords: landing gear; simplified nose; wavelet; ring cavity ... See more keywords
Evaluation of the lateral loading caused by aircraft with complex gear configurations turning during taxiing
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Pavement Engineering"
DOI: 10.1080/10298436.2017.1366763
Abstract: ABSTRACT The advent of New Generation Large Aircraft (NGLA), such as the Boeing 747 and Airbus A380, has introduced more complicated landing gears and heavier axle loads. The wheel configurations and loads induce complex mechanical… read more here.
Keywords: aircraft; landing gear; lateral force; evaluation lateral ... See more keywords
A Bird-Inspired Perching Landing Gear System1
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DOI: 10.1115/1.4044416
Abstract: The design, modeling, simulation, and testing of a landing gear system that enables a UAV to perch on an object or surface is presented here. The working principle of the landing gear is inspired by… read more here.
Keywords: landing gear; design; perching landing; inspired perching ... See more keywords
Experimental Research on Noise Reduction for Realistic Landing Gear Geometries
Sign Up to like & getrecommendations! Published in 2019 at "Acoustical Physics"
DOI: 10.1134/s1063771019030011
Abstract: An experimental study of noise reduction methods has been carried out for realistic small-scale (1 : 10) models of aircraft landing gear based on two ideas: (1) the useful interference of turbulent wake sources and reflected sources… read more here.
Keywords: reduction; noise reduction; experimental research; landing gear ... See more keywords
Numerical simulation of aeroacoustic noise from landing gear and rectangular cavity
Sign Up to like & getrecommendations! Published in 2020 at "Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering"
DOI: 10.1177/0954410019900722
Abstract: This paper is aimed at researching the interaction between aeroacoustic noise radiated from a rectangular cavity (gear bay) and from landing gear. It is a complicated flow-induced noise problem, involving the nonlinear, unsteady evolution of… read more here.
Keywords: rectangular cavity; numerical simulation; landing gear; cavity ... See more keywords