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Title: Numerical continuation applied to landing gear mechanism analysis
Authors: Knowles, James A.C.
Krauskopf, Bernd
Lowenberg, Mark H.
Issue Date: 2011
Publisher: © American Institute of Aeronautics and Astronautics
Citation: KNOWLES, J.A.C., KRAUSKOPF, B. and LOWENBERG, M.H., 2011. Numerical continuation applied to landing gear mechanism analysis. Journal of Aircraft, 48(4), pp.1254-1262.
Abstract: A method of investigating quasi-static mechanisms is presented and applied to an overcenter mechanism and to a nose landing gear mechanism. The method uses static equilibrium equations along with equations describing the geometric constraints in the mechanism. In the spirit of bifurcation analysis, solutions to these steady-state equations are then continued numerically in parameters of interest. Results obtained from the bifurcation method agree with the equivalent results obtained from two overcenter mechanism dynamic models (one state-space and one multibody dynamic model), while a considerable computation time reduction is demonstrated with the overcenter mechanism. The analysis performed with the nose landing gear model demonstrates the flexibility of the continuation approach, allowing conventional model states to be used as continuation parameters without a need to reformulate the equations within the model. This flexibility, coupled with the computation time reductions, suggests that the bifurcation approach has potential for analyzing complex landing gear mechanisms.
Description: This paper was accepted for publication in the journal Journal of Aircraft and the definitive published version is available at http://dx.doi.org/10.2514/1.C031247
Sponsor: This research was supported by an Engineering and Physical Sciences Research Council (EPSRC) Case Award grant in collaboration with Airbus in the UK.
Version: Accepted for publication
DOI: 10.2514/1.C031247
URI: https://dspace.lboro.ac.uk/2134/18688
Publisher Link: http://dx.doi.org/10.2514/1.C031247
ISSN: 0021-8669
Appears in Collections:Published Articles (Aeronautical and Automotive Engineering)

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