Knowles AIAA 2015.pdf (1.36 MB)
Download fileBifurcation study of a dynamic model of a landing gear mechanism
This paper presents a new modelling approach for the analysis of landing gear mecha-
nisms. By replacing the mechanism's rotational joints with equivalent high-sti ness elas-
tic joints, numerical continuation methods can be applied directly to dynamic models of
landing gear mechanisms. The e ects of using elastic joints are considered through two
applications | an overcentre mechanism, and a nose landing gear mechanism. In both
cases, selecting a su cient sti ness for the elastic joint is shown to provide accurate con-
tiuation results. The advantages of this new modelling approach are then demonstrated by
considering the unlocking of a nose landing gear with a single uplock/downlock mechanism,
when subjected to di erent orientations and magnitudes of gravitational loading. The un-
locking process is shown to be qualitatively insensitive to changes in both load angle and
load magnitude, ratifying the robustness of a previously-proposed control methodology for
unlocking a nose landing gear with a single uplock/downlock mechanism.
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Aeronautical and Automotive Engineering
Published in
Journal of Aircraft: devoted to aeronautical science and technologyCitation
KNOWLES, J.A.C., 2016. Bifurcation study of a dynamic model of a landing gear mechanism. Journal of Aircraft, 53 (5), pp. 1468-1477.Publisher
© American Institute of Aeronautics and AstronauticsVersion
- AM (Accepted Manuscript)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Publication date
2016Notes
This is the accepted version of a paper that was subsequently published in the serial, Journal of Aircraft. The definitive version is available at: http://dx.doi.org/10.2514/1.C033730ISSN
1533-3868Publisher version
Language
- en