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Established Numerical Techniques for the Structural Analysis of a Regional Aircraft Landing Gear
Joint Authors
Caputo, Francesco
Sepe, Raffaele
De Luca, A.
Greco, A.
Marro, A.
Apicella, A.
Armentani, E.
Source
Advances in Materials Science and Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-21, 21 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-10-17
Country of Publication
Egypt
No. of Pages
21
Abstract EN
Usually during the design of landing gear, simplified Finite Element (FE) models, based on one-dimensional finite elements (stick model), are used to investigate the in-service reaction forces involving each subcomponent.
After that, the design of such subcomponent is carried out through detailed Global/Local FE analyses where, once at time, each component, modelled with three-dimensional finite elements, is assembled into a one-dimensional finite elements based FE model, representing the whole landing gear under the investigated loading conditions.
Moreover, the landing gears are usually investigated also under a kinematic point of view, through the multibody (MB) methods, which allow achieving the reaction forces involving each subcomponent in a very short time.
However, simplified stick (FE) and MB models introduce several approximations, providing results far from the real behaviour of the landing gear.
Therefore, the first goal of this paper consists of assessing the effectiveness of such approaches against a 3D full-FE model.
Three numerical models of the main landing gear of a regional airliner have been developed, according to MB, “stick,” and 3D full-FE methods, respectively.
The former has been developed by means of ADAMS® software, the other two by means of NASTRAN® software.
Once this assessment phase has been carried out, also the Global/Local technique has verified with regard to the results achieved by the 3D full-FE model.
Finally, the dynamic behaviour of the landing gear has been investigated both numerically and experimentally.
In particular, Magnaghi Aeronautica S.p.A.
Company performed the experimental test, consisting of a drop test according to EASA CS 25 regulations.
Concerning the 3D full-FE investigation, the analysis has been simulated by means of Ls-Dyna® software.
A good level of accuracy has been achieved by all the developed numerical methods.
American Psychological Association (APA)
Caputo, Francesco& De Luca, A.& Greco, A.& Marro, A.& Apicella, A.& Sepe, Raffaele…[et al.]. 2018. Established Numerical Techniques for the Structural Analysis of a Regional Aircraft Landing Gear. Advances in Materials Science and Engineering،Vol. 2018, no. 2018, pp.1-21.
https://search.emarefa.net/detail/BIM-1122072
Modern Language Association (MLA)
Caputo, Francesco…[et al.]. Established Numerical Techniques for the Structural Analysis of a Regional Aircraft Landing Gear. Advances in Materials Science and Engineering No. 2018 (2018), pp.1-21.
https://search.emarefa.net/detail/BIM-1122072
American Medical Association (AMA)
Caputo, Francesco& De Luca, A.& Greco, A.& Marro, A.& Apicella, A.& Sepe, Raffaele…[et al.]. Established Numerical Techniques for the Structural Analysis of a Regional Aircraft Landing Gear. Advances in Materials Science and Engineering. 2018. Vol. 2018, no. 2018, pp.1-21.
https://search.emarefa.net/detail/BIM-1122072
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1122072