B - Operations – Transporting – 64 – D
Patent
B - Operations, Transporting
64
D
B64D 27/14 (2006.01) B64D 27/20 (2006.01) B64D 27/26 (2006.01)
Patent
CA 2701548
Arrangement for mounting a propulsive system on an aircraft airframe (12) by means of an external strut (4) which connects the engine (1) with the airframe (12), said strut (4) comprising a plurality of spars (8) intruding into the airframe (12) and means (7, 9, 11) for attaching said spars (8) to the internal airframe structure (10), the cited means (7, 9, 11) being dampers, shock absorbers or active actuators with characteristics chosen so that the said means (7, 9, 11) are particularly suited for the efficient reduction of attachment and internal dynamic loads arising mainly but not only from hard landing events and aircraft flight manoeuvres, and for damping sustained vibrations of the propulsive system- airframe (12) assembly, the said arrangement allowing the easy removal of the strut (4) from the rest of the said airframe (12) and the interchangeability of the said strut (4) between different aircrafts, being also the cited arrangement tolerant to damage or complete failure of at least one of the said spars (8).
L'invention concerne un système pour le montage d'un système propulsif sur une cellule (12) d'un aéronef au moyen d'un pylône externe (4) qui relie le moteur (1) à la cellule (12). Ledit pylône (4) comprend une pluralité de longerons (8) qui entrent dans la cellule (12) et des moyens (7, 9, 11) qui permettent de fixer lesdits longerons (8) à la structure interne (10) de la cellule. Lesdits moyens (7, 9, 11) sont des amortisseurs, des absorbeurs de chocs ou des actionneurs actifs qui présentent des caractéristiques sélectionnées de sorte que lesdits moyens (7, 9, 11) sont particulièrement appropriés pour la réduction efficace de charges dynamiques internes et de liaison issues principalement mais pas uniquement d'événements d'atterrissages brutaux et de manoeuvres en vol d'aéronefs, et pour amortir les vibrations continues de l'ensemble système propulsif-cellule (12), ledit système permettant de séparer facilement ledit pylône (4) du reste de ladite cellule (12), d'utiliser ledit pylône (4) sur différents aéronefs de manière interchangeable; ledit système étant également tolérant aux dommages ou à une défaillance complète d'au moins un desdits longerons (8).
Airbus Operations S.l.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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