Abstract: Methods and apparatus' for induction welding a first workpiece to a second workpiece at a welding region may include a metallic strip. The metallic strip may be a mesh. The properties of the metallic strip, such as, for example, pore size, thickness, and density, may be configured to conduct heat uniformly across the welding region and prevent eddy current formation across a workpiece. The metallic strip may be embedded in a workpiece or may be fixed to an induction welding tool that acts on the welding region during induction welding. A removable polymer tape may be disposed between a workpiece and a metallic strip fixed to an induction welding tool. The workpieces may be thermoplastic composite structures and thermoplastic composite stiffeners in aircraft structures.

Abstract: Methods and apparatus' for induction welding a first workpiece to a second workpiece at a welding region may include a metallic strip. The metallic strip may be a mesh. The properties of the metallic strip, such as, for example, pore size, thickness, and density, may be configured to conduct heat uniformly across the welding region and prevent eddy current formation across a workpiece. The metallic strip may be embedded in a workpiece or may be fixed to an induction welding tool that acts on the welding region during induction welding. A removable polymer tape may be disposed between a workpiece and a metallic strip fixed to an induction welding tool. The workpieces may be thermoplastic composite structures and thermoplastic composite stiffeners in aircraft structures.

Abstract: Systems and methods for induction welding a stiffener to a thermoplastic composite structure using a removeable metal mask to reduce excess heat along the edges of the stiffener generated from an electromagnetic field of an induction welding tool.

Abstract: A method is provided for forming a structured panel. During this method, a cellular core is formed that comprises a corrugated ribbon configured with a plurality of baffles and a plurality of septums. Each of the septums extends longitudinally between and connected to a respective adjacent pair of the baffles. At least one element of the corrugated ribbon includes a structural reinforcement. The forming includes: feeding a ribbon of material between a first roller and a second roller, corrugating the ribbon of material with the first roller and the second roller to provide the baffles and the septums, and stamping the structural reinforcement into the element with the first roller and the second roller. The cellular core is bonded to a first skin. The cellular core is bonded to a second skin. The cellular core is vertically between the first skin and the second skin, and the first skin is configured with a plurality of perforations.

Abstract: A structured panel is provided that includes a first skin with a plurality of perforations, a second skin and a core. The core forms a plurality of cavities vertically between the first skin and the second skin. Each of the cavities is respectively fluidly coupled with one or more of the perforations. The cavities include a first cavity. An element of the core is configured with a multi-layered structure. The multi-layered structure includes a first layer and a second layer attached to the first layer. The first layer is configured with a first rib projecting into the first cavity.

Abstract: A panel is provided for attenuating sound. This panel includes a perforated first skin, a second skin and a core. The core forms a plurality of cavities vertically between the perforated first skin and the second skin. The core includes an array of corrugations that include a first baffle, a second baffle and a first septum. The cavities include a first cavity formed longitudinally between the first baffle and the second baffle. The first cavity is fluidly coupled with perforations in the first skin. The first septum extends from the first skin and the first baffle to the second skin and the second baffle. The first septum divides the first cavity into fluidly coupled sub-cavities. At least one element of the panel includes at least one first rib and at least one second rib, the first rib extends along a first trajectory and the second rib extends along a second trajectory that is non-parallel with the first trajectory.

Abstract: A method is provided for forming a structured panel. During this method, a cellular core is formed that comprises a corrugated ribbon configured with a plurality of baffles and a plurality of septums. Each of the septums extends longitudinally between and connected to a respective adjacent pair of the baffles. At least one element of the corrugated ribbon includes a structural reinforcement. The forming includes: feeding a ribbon of material between a first roller and a second roller, corrugating the ribbon of material with the first roller and the second roller to provide the baffles and the septums, and stamping the structural reinforcement into the element with the first roller and the second roller. The cellular core is bonded to a first skin. The cellular core is bonded to a second skin. The cellular core is vertically between the first skin and the second skin, and the first skin is configured with a plurality of perforations.

Abstract: A structured panel is provided that includes a first skin with a plurality of perforations, a second skin and a core. The core forms a plurality of cavities vertically between the first skin and the second skin. Each of the cavities is respectively fluidly coupled with one or more of the perforations. The cavities include a first cavity. An element of the core is configured with a multi-layered structure. The multi-layered structure includes a first layer and a second layer attached to the first layer. The first layer is configured with a first rib projecting into the first cavity.

Abstract: A panel is provided for attenuating sound. This panel includes a perforated first skin, a second skin and a core. The core forms a plurality of cavities vertically between the perforated first skin and the second skin. The core includes an array of corrugations that include a first baffle, a second baffle and a first septum. The cavities include a first cavity formed longitudinally between the first baffle and the second baffle. The first cavity is fluidly coupled with perforations in the first skin. The first septum extends from the first skin and the first baffle to the second skin and the second baffle. The first septum divides the first cavity into fluidly coupled sub-cavities. At least one element of the panel includes at least one first rib and at least one second rib, the first rib extends along a first trajectory and the second rib extends along a second trajectory that is non-parallel with the first trajectory.

Abstract: A panel mount securing a panel to an adjoining structure. The panel mount includes a first and a second jaw defining an elongate slot. The first jaw includes a first abutment surface facing the elongate slot. The panel mount includes a clamp having a first and a second clamp plate within the elongate slot. The first clamp plate includes a second abutment surface abutting the first abutment surface. A clamp orientation may be altered when the second abutment surface slides longitudinally relative to the first abutment surface. The second clamp plate includes a non-planar surface having a plateau facing the second jaw. A jamming device between the non-planar surface and the second jaw includes a pair of blocks and an adjustment member for adjusting a distance between the blocks. The jamming device urges the clamp against the first jaw upon increasing or decreasing the distance between the pair of blocks.

Abstract: A panel mount including a base, a first jaw, and a second jaw is provided. The panel mount includes a first and second threaded hole in the first jaw having fasteners received therein. The first threaded hole is nearer to the base than the second threaded hole. The panel mount includes a first and a second protrusion when fasteners are adjusted to protrude from the first jaw towards the second jaw. The panel mount includes a pivot protrusion on the second jaw. A panel is to be fastened between the pivot protrusion and at least one of the first protrusion or the second protrusion. Further, when one of the threaded fasteners protrudes from the first jaw at a greater distance than the other of the threaded fasteners, the panel may pivot about an axis centered on the pivot protrusion.

Abstract: A system and method for data extraction from structured documents using historical or related data. Structured documents are searched for instances of an attribute value that match a known historical value for the attribute. Document features associated with the attribute value are identified and anchor a location within the hierarchy of the document structure where the attribute value can be found and extracted. An accuracy for the identified anchors is determined by evaluating how well the anchor's extraction history matches the reported history. Anchors are grouped into anchor sets such that all anchors in a set extract attributes from the same structured document template. The anchors are prioritized according to the determined accuracy, the prioritized list defining the order in which a structure document template should be searched for an attribute value.

Abstract: A panel mount including a base, a first jaw, and a second jaw is provided. The panel mount includes a first and second threaded hole in the first jaw having fasteners received therein. The first threaded hole is nearer to the base than the second threaded hole. The panel mount includes a first and a second protrusion when fasteners are adjusted to protrude from the first jaw towards the second jaw. The panel mount includes a pivot protrusion on the second jaw. A panel is to be fastened between the pivot protrusion and at least one of the first protrusion or the second protrusion. Further, when one of the threaded fasteners protrudes from the first jaw at a greater distance than the other of the threaded fasteners, the panel may pivot about an axis centered on the pivot protrusion.

Abstract: A panel mount including a base, a first jaw, and a second jaw is provided. The panel mount includes a first and second threaded hole in the first jaw having fasteners received therein. The first threaded hole is nearer to the base than the second threaded hole. The panel mount includes a first and a second protrusion when fasteners are adjusted to protrude from the first jaw towards the second jaw. The panel mount includes a pivot protrusion on the second jaw. A panel is to be fastened between the pivot protrusion and at least one of the first protrusion or the second protrusion. Further, when one of the threaded fasteners protrudes from the first jaw at a greater distance than the other of the threaded fasteners, the panel may pivot about an axis centered on the pivot protrusion.

Abstract: A panel mount including a base, a first jaw, and a second jaw is provided. The panel mount includes a first and second threaded hole in the first jaw having fasteners received therein. The first threaded hole is nearer to the base than the second threaded hole. The panel mount includes a first and a second protrusion when fasteners are adjusted to protrude from the first jaw towards the second jaw. The panel mount includes a pivot protrusion on the second jaw. A panel is to be fastened between the pivot protrusion and at least one of the first protrusion or the second protrusion. Further, when one of the threaded fasteners protrudes from the first jaw at a greater distance than the other of the threaded fasteners, the panel may pivot about an axis centered on the pivot protrusion.

Abstract: An ice protection system comprises deicing zones each including an envelope defining an ice-protection area. Adjacent envelopes have spanwise edge regions flanking shared interzone borders. The edge regions are provided with nonlinear contours having features which project-and-recess in a direction generally parallel to the airstream direction.

Abstract: A fan ramp for use in a thrust reverser portion of a nacelle is disclosed. The nacelle is included in a propulsion system. The fan ramp extends circumferentially about an axial fan ramp centerline. The fan ramp includes a forward edge, an aft edge, and a first blocker door pocket. The forward edge is disposed proximate an aft end of a fan case. The fan case at least partially surrounds a fan section of a gas turbine engine. The aft edge is disposed proximate a forward end of an array of cascades. The array of cascades is operable to permit a bypass airstream to pass there through during a thrust reversing operation. The first blocker door pocket is operable to receive at least a portion of a forward edge of a first blocker door included in the nacelle.

Abstract: A threaded connector for securing a panel member to a structure and for adjusting the position of the panel member relative to the structure. The connector comprises an elongate one-piece stud, a first spacer, a threaded nut, a second spacer and a turning formation. The connector permits the panel member to be mounted on the stud and the stud to be rotated to adjust the position of the panel member relative to the structure.

Abstract: A fan ramp for use in a thrust reverser portion of a nacelle is disclosed. The nacelle is included in a propulsion system. The fan ramp extends circumferentially about an axial fan ramp centerline. The fan ramp includes a forward edge, an aft edge, and a first blocker door pocket. The forward edge is disposed proximate an aft end of a fan case. The fan case at least partially surrounds a fan section of a gas turbine engine. The aft edge is disposed proximate a forward end of an array of cascades. The array of cascades is operable to permit a bypass airstream to pass there through during a thrust reversing operation. The first blocker door pocket is operable to receive at least a portion of a forward edge of a first blocker door included in the nacelle.

Abstract: A threaded connector for securing a panel member to a structure and for adjusting the position of the panel member relative to the structure. The connector comprises an elongate one-piece stud, a first spacer, a threaded nut, a second spacer and a turning formation. The connector permits the panel member to be mounted on the stud and the stud to be rotated to adjust the position of the panel member relative to the structure.