Unitary, Self-Stiffened and Pivoting Composite Panel, in Particular for a Mobile Part of an Aircraft
First Claim
1. A self-stiffened monolithic composite panel, for pivoting about an axis of rotation parallel to a first side of said panel, comprising a first composite covering, which is continuous, on which there is arranged a main structural reinforcement consisting of composite stiffeners secured to said first covering, wherein said main structural reinforcement comprises a latticework of stiffeners comprising at least one pair of stiffeners arranged in a cross shape, and each directed in a respective one of two directions which are neither parallel nor perpendicular to said axis of rotation, each stiffener of said at least one pair having two parts which extend one on each side of a node at the center of said cross and which are in structural continuity with one another, each stiffener of said at least one pair having one end situated at a point on said first side of the panel and where said one end is secured to a rigid connecting member for connecting to said axis of rotation, an opposite end of at least one stiffener being prevented from rotating on an abutment on a second side of the panel, which second side is opposite to said first side.
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Accused Products
Abstract
The invention relates to a panel pivoting about an axis parallel to a side of the panel, which comprises a first continuous coating (1),a main structural frame of a composite stiffener (2, 3, 4, 5, 6) connected to the coating (1) and including a stiffening mesh (2, 3) with at least one pair of cross-shaped stiffeners each oriented in one of two directions, respectively, not parallel or perpendicular to the rotation axis. The two parts (3a, 3b) of each stiffener (3, 2) extending on either side of the centre of the cross are in structural continuity, and the two stiffeners (2, 3) each have an end located at one point (A, B, C) on the side of the panel parallel to the rotation axis, wherein the end is connected to a rigid member for connection to the rotation axis, the opposite end of at least one stiffener being blocked in rotation on a bearing point on the opposite side of the panel.
11 Citations
15 Claims
- 1. A self-stiffened monolithic composite panel, for pivoting about an axis of rotation parallel to a first side of said panel, comprising a first composite covering, which is continuous, on which there is arranged a main structural reinforcement consisting of composite stiffeners secured to said first covering, wherein said main structural reinforcement comprises a latticework of stiffeners comprising at least one pair of stiffeners arranged in a cross shape, and each directed in a respective one of two directions which are neither parallel nor perpendicular to said axis of rotation, each stiffener of said at least one pair having two parts which extend one on each side of a node at the center of said cross and which are in structural continuity with one another, each stiffener of said at least one pair having one end situated at a point on said first side of the panel and where said one end is secured to a rigid connecting member for connecting to said axis of rotation, an opposite end of at least one stiffener being prevented from rotating on an abutment on a second side of the panel, which second side is opposite to said first side.
Specification