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Computational fluid dynamics analysis of aerodynamic characteristics in long-endurance unmanned aerial vehicles. [PDF]
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Failure analysis of a nose landing gear fork
Engineering Failure Analysis, 2017Abstract This paper presents a detailed analysis of a nose landing gear failure. The developed study comes following an accident occurred in which the nose of the landing gear's fork of a light aircraft failed during landing. According to Federal Aviation Administration, in average, 55% of aircraft failures occur during takeoff and landing. In order
R Baptista, V Infante, M de Freitas
exaly +2 more sources
Failure analysis of the nose landing gear axle of an aircraft
Engineering Failure Analysis, 2019Abstract 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 the root causes of these failures must be well identified in order to avoid future accidents.
R Baptista, V Infante, M de Freitas
exaly +2 more sources
Nose Landing Gear Simple Adaptive Shimmy Suppression System
Journal of Guidance, Control, and Dynamics, 2020The occurrence of shimmy vibration in aircraft nose landing gear can cause an increase of fatigue stress on the nose landing gear mechanical elements that can eventually lead to high wearing of com...
Calogero Orlando
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The Load Simulation Research of Nose Landing Gear Steering
Applied Mechanics and Materials, 2014The nose landing gear is a vital component of an aircraft,which has an important impact on the safety of the aircraft.This paper studies the system of nose landing gear steering on the basis of the gear and rack mechanism durability test of a certain type of civil aircraft landing gear steering.
Lin Hai Zhang +3 more
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Hybrid CAA solutions for nose landing gear noise
18th AIAA/CEAS Aeroacoustics Conference (33rd AIAA Aeroacoustics Conference), 2012 Landing gear noise computations require the calculation of unsteady flow fields around complex geometries. Previous experience gained at Onera established the benefit of unstructured grids in CFD computations on both an academic tandem cylinder case and ...
Francois Vuillot +5 more
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Nose Landing Gear Door Re-design
48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2007Introduction The goal of this study was to re-design the F-22A Nose Landing Gear (NLG) Doors to reduce the cost. Cost was impacted by a) acquisition (fabrication methods) and b) installation and rigging time. There were additional requirements that also had to be satisfied: must be weight neutral +/1 pound, fit within the current NLG door opening ...
John Barnes +4 more
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Aeroacoustic Study on a Simplified Nose Landing Gear
Applied Mechanics and Materials, 2012Simulation analysis and experiment research are performed on the aeroacoustic noise of a landing gear component in this paper. Detached Eddy Simulation (DES) is used to produce the flow field of the model. The Ffowcs-Williams/Hawkings (FW-H) equation is used to calculate the acoustic field.
Shuang Li Long, Hong Nie, Xin Xu
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Numerical Investigation of a Realistic Nose Landing Gear
20th AIAA/CEAS Aeroacoustics Conference, 2014A hybrid approach is used to study the noise generated by a realistic full-scale nose land- ing gear configuration.
Jeremy Dahan +2 more
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