Abstract: A tooling device for producing a planar structural component for an aircraft has a moulding tool part with a contour surface for receiving a planar semi-finished product, a heating device for heating the semi-finished product, a film produced from an elastically deformable material and a clamping system with a first clamping device arranged on a first longitudinal side of the contour surface , and a second clamping device arranged on a second longitudinal side of the contour surface located opposite the first longitudinal side. The film is couplable to the clamping devices by the edge regions thereof and, when it is coupled to the clamping devices, covers the contour surface of the moulding tool part. The film is elastically deformable relative to the contour surface by the first and/or the second clamping device to press the semi-finished product in a planar manner against the contour surface for deforming purposes.

Abstract: A tooling device for producing a planar structural component for an aircraft has a moulding tool part with a contour surface for receiving a planar semi-finished product, a heating device for heating the semi-finished product, a film produced from an elastically deformable material and a clamping system with a first clamping device arranged on a first longitudinal side of the contour surface , and a second clamping device arranged on a second longitudinal side of the contour surface located opposite the first longitudinal side. The film is couplable to the clamping devices by the edge regions thereof and, when it is coupled to the clamping devices, covers the contour surface of the moulding tool part. The film is elastically deformable relative to the contour surface by the first and/or the second clamping device to press the semi-finished product in a planar manner against the contour surface for deforming purposes.

Abstract: A tooling device for producing a planar structural component for an aircraft has a moulding tool part with a contour surface for receiving a planar semi-finished product, a heating device for heating the semi-finished product, a film produced from an elastically deformable material and a clamping system with a first clamping device arranged on a first longitudinal side of the contour surface, and a second clamping device arranged on a second longitudinal side of the contour surface located opposite the first longitudinal side. The film is couplable to the clamping devices by the edge regions thereof and, when it is coupled to the clamping devices, covers the contour surface of the moulding tool part. The film is elastically deformable relative to the contour surface by the first and/or the second clamping device to press the semi-finished product in a planar manner against the contour surface for deforming purposes.

Abstract: A fuselage includes a fuselage section with an inner surface having a non-circular contour and a spherical pressure bulkhead with an outer edge. The outer edge of the spherical pressure bulkhead is attached to the inner surface of the fuselage section and extends along a line, which is non-circular. The line extends in a three-dimensional space extending parallel to the inner surface of the fuselage section. An aircraft and a method for manufacturing a fuselage are also described.

Abstract: A fuselage section of an aircraft has an inner surface with a non-circular contour. A pressure bulkhead for use in the fuselage section has a non-circular outer edge that is aligned with the non-circular contour of the inner surface of the fuselage section. The pressure bulkhead has a spherically-shaped inner section having radially arranged stiffening units and a non-spherically outer section having additional radially arranged stiffening units; the stiffening units corresponding to each section do no extend into the other section. The pressure bulkhead is attached to the fuselage section. A method of manufacturing a fuselage section having such a pressure bulkhead is also provided.

Abstract: A tooling device for producing a planar structural component for an aircraft has a moulding tool part with a contour surface for receiving a planar semi-finished product, a heating device for heating the semi-finished product, a film produced from an elastically deformable material and a clamping system with a first clamping device arranged on a first longitudinal side of the contour surface, and a second clamping device arranged on a second longitudinal side of the contour surface located opposite the first longitudinal side. The film is couplable to the clamping devices by the edge regions thereof and, when it is coupled to the clamping devices, covers the contour surface of the moulding tool part. The film is elastically deformable relative to the contour surface by the first and/or the second clamping device to press the semi-finished product in a planar manner against the contour surface for deforming purposes.

Abstract: A fuselage skin window unit for an aircraft, an aircraft with such a fuselage skin window unit and a method for manufacturing such a fuselage skin window unit are described. The fuselage skin window unit includes a fuselage skin section and a window pane section. The fuselage skin section is part of a fuselage skin of the aircraft and has a pattern of pinhole perforations. The window pane section is transparent and arranged so that it covers the pinhole perforations.

Abstract: This pertains to an aircraft structure with a first shell-shaped structural element and a second shell-shaped structural element. The aircraft structure comprises a strap, wherein the first shell-shaped structural element and the second shell-shaped structural element are respectively fastened on the strap by means of a rivet joint. An edge of the first shell-shaped structural element extends on a surface of the strap along a predefined curve with periodic progression. An edge of the second shell-shaped structural element likewise extends on the surface of the strap parallel to the curve with periodic progression. The invention furthermore pertains to an aircraft with an aircraft structure, as well as a method for manufacturing an aircraft structure.

Abstract: A fuselage includes a fuselage section with an inner surface having a non-circular contour and a spherical pressure bulkhead with an outer edge. The outer edge of the spherical pressure bulkhead is attached to the inner surface of the fuselage section and extends along a line, which is non-circular. The line is a three-dimensional curve extending parallel to the inner surface of the fuselage section. An aircraft and a method for manufacturing a fuselage are also described.

Abstract: This relates to a fuselage section comprising an inner surface with a non-circular contour and a pressure bulkhead comprising a non-circular outer edge. The non-circular outer edge of the pressure bulkhead is aligned with the non-circular contour of the inner surface of the fuselage section when the pressure bulkhead is attached to the fuselage section. This further relates to an aircraft with a fuselage section and a method for manufacturing a fuselage section.

Abstract: The present invention provides a high frequency electronic ballast with low voltage output, comprising a high voltage power supply (200) generating high voltage power (234) at a voltage and a frequency; a low voltage microcontroller (214) which is responsive to the voltage and the frequency of the high voltage power (234) and generates a low voltage drive signal (240); and a switch (216) operably connected to the high voltage power supply (200) and responsive to the low voltage drive signal (240). The low voltage output of the switch (216) can be used to drive auxiliary low voltage loads (220), such as a back-up incandescent lamp (116). The low voltage output can be responsive to HID lamp power, so that the back-up incandescent lamp (116) is energized when the HID lamp is not providing illumination.

Abstract: A high frequency electronic ballast for main loads, such as an HID lamp, includes a regulated low voltage output to drive auxiliary loads. A low voltage microcontroller generates a low voltage drive signal in response to voltage and frequency of a high voltage power supply. A switch operably connected to the high voltage power supply and responsive to the low voltage drive signal provides the regulated low voltage output to drive the auxiliary devices, such as a back-up incandescent lamp and/or an insulation detector. In one embodiment, the low voltage output may be responsive to the HID lamp power, e.g., a control signal from a ballast microcontroller, so that the back-up incandescent lamp is energized when the HID lamp is not providing sufficient illumination.

Abstract: The present invention provides a high frequency electronic ballast with rail voltage switching which adjusts the DC rail voltage output (208) to account for different voltages of mains power (210), improving efficiency. The rail voltage switching comprises a mains power supply (200) providing mains power (210) and a mains voltage signal (212); a ballast microcontroller (206) responsive to the mains voltage signal (212) and generating a power factor correction (PFC) voltage signal (214); and a converter (204) operably connected to the mains power supply (200) and responsive to the PFC voltage signal (214) to generate a DC rail voltage output (208). For an embodiment using power factor control, the converter (204) comprises a coil (218), power factor correction (224), a switch (220), and a rectifier (222).

Abstract: The present invention provides a high frequency electronic ballast with ignition and operation control, and method of use, comprising a ballast microcontroller (200) responsive to at least one high intensity discharge (HID) lamp feedback signal and generating an HID lamp control signal; a parallel capacitive circuit (214) operably connected parallel to the HID lamp (216); an inductive circuit (212) operably connected to the parallel capacitive circuit (214); means for switching power (252) to the inductive circuit (212) in response to the HID lamp control signal; and means for monitoring the HID lamp (216) to generate at least one high intensity discharge (HID) lamp feedback signal. In one embodiment, the HID lamp feedback signal can be an ignition voltage signal (266). In another embodiment, the HID lamp feedback signal can be a sensed rail voltage signal (256), a sensed lamp current signal (264), and a sensed lamp power signal (258).

Abstract: The present invention provides a high frequency electronic ballast with rail voltage switching which adjusts the DC rail voltage output (208) to account for different voltages of mains power (210), improving efficiency. The rail voltage switching comprises a mains power supply (200) providing mains power (210) and a mains voltage signal (212); a ballast microcontroller (206) responsive to the mains voltage signal (212) and generating a power factor correction (PFC) voltage signal (214); and a converter (204) operably connected to the mains power supply (200) and responsive to the PFC voltage signal (214) to generate a DC rail voltage output (208). For an embodiment using power factor control, the converter (204) comprises a coil (218), power factor correction (224), a switch (220), and a rectifier (222).

Abstract: The present invention provides a high frequency electronic ballast with ignition and operation control, and method of use, comprising a ballast microcontroller (200) responsive to at least one high intensity discharge (HID) lamp feedback signal and generating an HID lamp control signal; a parallel capacitive circuit (214) operably connected parallel to the HID lamp (216); an inductive circuit (212) operably connected to the parallel capacitive circuit (214); means for switching power (252) to the inductive circuit (212) in response to the HID lamp control signal; and means for monitoring the HID lamp (216) to generate at least one high intensity discharge (HID) lamp feedback signal. In one embodiment, the HID lamp feedback signal can be an ignition voltage signal (266). In another embodiment, the HID lamp feedback signal can be a sensed rail voltage signal (256), a sensed lamp current signal (264), and a sensed lamp power signal (258).