Aircraft Landing Gear Dynamics: Simulation and Control

Krüger, Wolf R.; Besselink, Igo Igo; Cowling, DA; Doan, Dinh-Thien-Vuong; Kortüm, W.; Krabacher, William E.

doi:10.1080/00423119708969352

Cited by 78 publications

(41 citation statements)

References 10 publications

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“…Simulation will play an ever increasing role in further improvement of new aircraft and the introduction of new ideas and systems [13]. There exist some specific publications in the area of landing gear dynamics and simulation.…”

Section: Landing Gear Vibrations -State Of the Artmentioning

confidence: 99%

Gear walk instability studies using flexible multibody dynamics simulation methods in SIMPACK

Khapane

2006

Aerospace Science and Technology

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Section: Landing Gear Vibrations -State Of the Artmentioning

confidence: 99%

Gear walk instability studies using flexible multibody dynamics simulation methods in SIMPACK

Khapane

2006

Aerospace Science and Technology

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“…Most of the research into landing gear modelling focuses on dynamic modelling of structural aspects, 1,2 whereas the analysis of landing gear mechanisms is much less prevalent in the literature. Mathematical analysis of landing gear mechanisms primarily deals with the geometric design of the mechanism, i.e.…”

Section: Introductionmentioning

confidence: 99%

Numerical Continuation Applied to Landing Gear Mechanism Analysis

Knowles

Krauskopf

Löwenberg

2010

AIAA Modeling and Simulation Technologies Conference

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“…An overview of computer simulation of aircraft and landing gear is published in another AGARD volume [9], which has its main emphasis on the simulation of shimmy. Two publications of the IAVSD (International Association for Vehicle System Dynamics), Hitch [10] and Krüger et al [11] are stateof-the-art overviews of aircraft ground simulation, the latter article also discussing different modelling approaches and tools. Pritchard [12], 1999, is another-and, to the authors' knowledge the most recent-overview of landing gear dynamics.…”

Section: Available Literaturementioning

confidence: 99%

Recent developments at the numerical simulation of landing gear dynamics

Krüger

Morandini

2011

CEAS Aeronaut J

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Aircraft landing gears support the aircraft during ground operations, including take-off, landing impact, taxiing, gate handling and maintenance. Mostly for reasons of minimum mass and ground clearance, landing gears are slender structures which exhibit a considerable dynamic response to ground load excitations. As the landing gear is one of the few systems on the aircraft without redundancies, the knowledge of landing gear dynamics is crucial for aircraft design and aircraft safety. Simulation of landing gear dynamics is a cornerstone of aircraft loads analysis, as well for vertical loads resulting from touch-down as for longitudinal and lateral loads resulting from braking, steering and towing. Another important field of interest is landing gear vibrations like gear walk and shimmy. Those phenomena can be brake induced or result from tire spin-up at touchdown or simply from a coupling of dynamics of the running tire and structural mechanics of the landing gear leg. All those effects strongly depend on a number of parameters such as aircraft speed, landing gear vertical deflection, tire pressure and wear of the parts. Many of those parameters can only be estimated and might change during the operation of the aircraft. Numerical investigation is thus a challenging task. Analysis methods exist both in the frequency domain and in the time domain. As stability analysis is straight forward in frequency domain methods, this approach is still often used. However, in many cases nonlinearities are dominant which lead to limit-cycle characteristics of the vibrations. Here, multibody modelling or a mixture of multibody and finite element modelling including time domain simulation is used. In the article, a general outline is given of how vibration problems in landing gears can be treated by numerical analysis methods. The article will start with a classification of typical problems, give a short overview of classical papers, and explain typical approaches. In addition, alternative approaches for stability analysis and for the detection of limit-cycle oscillations as well as state-ofthe-art modelling approaches will be presented.

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Aircraft Landing Gear Dynamics: Simulation and Control

Cited by 78 publications

References 10 publications

Gear walk instability studies using flexible multibody dynamics simulation methods in SIMPACK

Gear walk instability studies using flexible multibody dynamics simulation methods in SIMPACK

Numerical Continuation Applied to Landing Gear Mechanism Analysis

Recent developments at the numerical simulation of landing gear dynamics

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