Abstract: An acoustic treatment device for an aircraft propulsion assembly includes two skins that enclose an acoustic structure. The acoustic structure has a cellular structure with hollow cells and a structure of shapes with protruding shapes, each of which is engaged in a different hollow cell of the cellular structure. The structure of shapes additionally has stubs designed to fit into the hollow cells of the cellular structure and to allow the acoustic treatment device to be fixed to a component of the aircraft propulsion assembly.

Abstract: There is provided an assembly of annular sectors of an annular multi-element acoustic component, each sector including a plurality of rows of hollow complex acoustic elements each having a shape that steadily narrows between a base and a vertex, each sector including a plurality of first rows including the same number of hollow complex elements and one or more second rows including one less hollow complex element than the first rows, each second row further including a male attachment element on one of the assembly edges and a female attachment element on the other assembly edge, the female attachment element having the same dimension as a hollow complex element along the direction of assembly.

Abstract: A method for manufacturing an acoustic attenuation structure including a complex acoustic multi-element panel extending along a horizontal and a vertical direction and an acoustic skin covering one of horizontal faces of the complex acoustic multi-element panel, the complex acoustic multi-element panel including complex acoustic elements each having a shape gradually narrowing between a base and a tip and partitions surrounding each complex acoustic element to form a plurality of acoustic cells, the partitions extending along the vertical direction from the base of the complex acoustic elements, the complex acoustic multi-element panel being produced by injection of a filled or unfilled thermoplastic or thermosetting material. The complex acoustic multi-element panel and the plurality of partitions are produced as a single part by injection of a filled or unfilled thermoplastic or thermosetting material.

Abstract: Application head for automated fiber placement, which application head includes at least: an application roller that is designed to apply fibers to a shaping tool which application roller is rotatably movable on its axis for applying fibers to the shaping tool, and a feed device includes a winding of a strip of fibers having a predefined orientation, the strip of fibers being configured to be transferred by unwinding from the feed device onto the application roller with at least one portion of the fibers of the strip being oriented such that they are not perpendicular to the axis of the roller.

Abstract: A utility security apparatus includes a body defining a first cavity, a second cavity and a third cavity. A security member including a first end fixedly secured in the third cavity, and an opposing second end. A lock assembly is structured to be at least partially positioned in the first cavity the lock assembly comprising a barrel operatively coupled to a lock pin. A movement of at least a portion of the barrel is configured to control a movement of the lock assembly between a locked position and an unlocked position. In the unlocked position, the second end of the security member is moveable relative to the body and in the locked positon, the second end of the security member is inhibited from moving relative to the body by an engagement with the lock pin.

Abstract: Method for the manufacture of at least one skin, in particular of an acoustic panel for an aeronautical engine, including the laying of a thermoplastic material on a surface of a lay-up tooling, via a depositing tool configured to exert a pressure on the thermoplastic material and to heat the latter while it is being laid, wherein the lay-up tooling includes a thermal regulation device configured to locally heat the surface of the lay-up tooling.

Abstract: A method for manufacturing a composite material part having a cellular structure that includes at least one cell delimited by walls. The method includes supplying at least a first core, providing a web of a first fibrous reinforcement comprising a plurality of long discontinuous fibers randomly distributed in a plane, and producing at least one strip of the first fibrous reinforcement. The method further includes producing a second fibrous reinforcement in the shape of a sock, inserting the first core into the sock, draping the strip around the sock containing the first core, placing the sock containing the first core and the wrapped strip in a mold, and thermocompression.

Abstract: A method for making an acoustic component includes a plurality of hollow complex acoustic elements, the method including heating a film of thermoplastic material to a first temperature above the glass transition temperature of the film; shaping the heated film of thermoplastic material in a tool including a mould which has a plurality of mould cavities having a shape corresponding to the shape of the complex acoustic elements of the acoustic component to be made, the heated film of thermoplastic material being shaped locally in each of the mould cavities, at least the mould being kept at a second temperature above the glass transition temperature of the thermoplastic material; cooling the mould; and removing a complex acoustic multi-element panel including a plurality of hollow complex acoustic elements from the mould.

Abstract: A method for continuously manufacturing a complex acoustic multi-element panel for an acoustic attenuation structure, the method including supplying a thermoplastic resin film at the entry of a stamping system including at least one pair of complementary cylinders, a heating of the thermoplastic resin film upstream of the entry of the stamping system, and a passage of the thermoplastic resin film between the at least one pair of complementary cylinders, the pair of complementary cylinders including a male cylinder with teeth radially protruding from the cylinder and a female cylinder with cavities on its radial surface, the cavities of the female cylinder being of shapes complementary to the shapes of the teeth of the male cylinder and a separation of the stamped film at the exit of the stamping system using a separator disposed at the exit of the stamping system between the stamped film and the female cylinder.

Abstract: A method for producing a component including a plurality of hollow complex elements, includes: filling a plurality of molding cavities with a thermoplastic material, the mold being maintained at a first temperature, applying a hold pressure to the thermoplastic material while the mold is cooled to a second temperature, and interrupting the hold pressure on the thermoplastic material while the mold is cooled to a third temperature.

Abstract: Application head for automated fiber placement, which application head includes at least: an application roller that is designed to apply fibers to a shaping tool which application roller is rotatably movable on its axis for applying fibers to the shaping tool, and a feed device includes a winding of a strip of fibers having a predefined orientation, the strip of fibers being configured to be transferred by unwinding from the feed device onto the application roller with at least one portion of the fibers of the strip being oriented such that they are not perpendicular to the axis of the roller.

Abstract: A security apparatus for securing a portable electronic device for retail display includes a base assembly extending along a base assembly axis and structured to couple to a display fixture. The base assembly includes a base portion structured to move along the base assembly axis. A body extends along a body axis and is structured configured to couple to the base portion. A first securing member is coupled to the body and a second securing member is coupled to the body. At least one of the first and second securing members moves along the body axis relative to the body. The first and second securing members each include a device engagement portion structured to at least partially surround a portion of the portable electronic device. The base portion is structured to move the body along the base assembly axis.

Abstract: A method for manufacturing an acoustic panel by welding of at least two acoustic components made of thermoplastic material, a thermal gradient being applied on the acoustic components during the welding operation so as to apply a temperature higher than the glass transition or melting temperature of the material on the area to be welded and so as to apply a temperature lower than or equal to the geometric stabilization temperature of the material on the parts furthest from the area to be welded.

Abstract: A method for manufacturing an acoustic attenuation structure including the following steps: making a complex acoustic multi-element panel including a plurality of hollow complex acoustic elements and a plurality of partitions forming acoustic cavities, each complex acoustic element being housed in an acoustic cavity so as to form an acoustic cell, making a first skin, piercing a plurality of perforations on the first skin at determined locations to form a multi-perforated acoustic skin, assembling the complex acoustic multi-element panel with the multi-perforated acoustic skin. The multi-perforated acoustic skin including on its assembly face a plurality of positioning studs configured to cooperate with a hollow complex acoustic element or an acoustic cavity during the assembly of the complex acoustic multi-element panel with the multi-perforated acoustic skin.

Abstract: An acoustic treatment device for an aircraft propulsion assembly includes two skins that enclose an acoustic structure. The acoustic structure has a cellular structure with hollow cells and a structure of shapes with protruding shapes, each of which is engaged in a different hollow cell of the cellular structure. The structure of shapes additionally has stubs designed to fit into the hollow cells of the cellular structure and to allow the acoustic treatment device to be fixed to a component of the aircraft propulsion assembly.

Abstract: A method for manufacturing an acoustic panel by welding of at least two acoustic components made of thermoplastic material, a thermal gradient being applied on the acoustic components during the welding operation so as to apply a temperature higher than the glass transition or melting temperature of the material on the area to be welded and so as to apply a temperature lower than or equal to the geometric stabilization temperature of the material on the parts furthest from the area to be welded.

Abstract: A security apparatus for securing a portable electronic includes a base assembly and a body pivotally coupled to the base assembly. The body includes a first body portion including two retainers the each have first and second securing members. A first body support configured to slidably couple to the retainers. A second body portion includes first and second body portion elements. The body portion elements are configured to slidably mate with the retainer. When the first securing member is in an unlocked position, a width dimension of the body is enabled to be increased and decreased. When the second securing member is in an unlocked position, a height dimension of the body is enabled to be increased and decreased. When the first and second securing members are in a locked position, the width and height dimensions are inhibited from being increased, respectively.

Abstract: A method for continuously manufacturing a complex acoustic multi-element panel for an acoustic attenuation structure, the method including supplying a thermoplastic resin film at the entry of a stamping system including at least one pair of complementary cylinders, a heating of the thermoplastic resin film upstream of the entry of the stamping system, and a passage of the thermoplastic resin film between the at least one pair of complementary cylinders, the pair of complementary cylinders including a male cylinder with teeth radially protruding from the cylinder and a female cylinder with cavities on its radial surface, the cavities of the female cylinder being of shapes complementary to the shapes of the teeth of the male cylinder and a separation of the stamped film at the exit of the stamping system using a separator disposed at the exit of the stamping system between the stamped film and the female cylinder.

Abstract: A method for manufacturing a composite material part having a cellular structure that includes at least one cell delimited by walls. The method includes supplying at least a first core, providing a web of a first fibrous reinforcement comprising a plurality of long discontinuous fibers randomly distributed in a plane, and producing at least one strip of the first fibrous reinforcement. The method further includes producing a second fibrous reinforcement in the shape of a sock, inserting the first core into the sock, draping the strip around the sock containing the first core, placing the sock containing the first core and the wrapped strip in a mold, and thermocompression.

Abstract: A utility security apparatus includes a body defining a first cavity, a second cavity and a third cavity. A security member including a first end fixedly secured in the third cavity, and an opposing second end. A lock assembly is structured to be at least partially positioned in the first cavity the lock assembly comprising a barrel operatively coupled to a lock pin. A movement of at least a portion of the barrel is configured to control a movement of the lock assembly between a locked position and an unlocked position.