Abstract: An electric machine including a stator that is provided with at least one exciter unit including a coil, at least two annular yokes and at least one row of intermediate pieces, and a rotor having a structure and at least one receiver unit including at least two series of at least two rows of magnets. Two sides of each yoke include the first teeth, fitting with the intermediate pieces on a face of the exciter unit and alternatingly forming the second north poles and the second south poles. Each series is positioned opposite one face, forming an air gap with the exciter unit, with the electric machine thus including at least two air gaps, with a flux thus circulating inside the electric machine, dividing and regrouping itself in the vicinity of the magnets and of the yokes.

Abstract: A method and a device for power extraction by means of an axial fluid machine, in an annulus tube comprising at least a rotatable inner wall (308, 408, 501) and/or a rotatable outer wall (409, 502) over which a swirling fluid is flowing with a velocity (420). According to this method, the said fluid creates tangential force (417) on at least one of said rotatable walls (308, 408, 501 and 502) of the axial fluid machine and creates power of that said shaft (309, 414, 505 and/or 506).

Abstract: According to the invention, the balance weights of the missile are made from pellets whereof the particle size is at most equal to 1 mm which is enclosed in a closed package.

Abstract: The invention relates to a safety arming system for an explosive charge. According to the invention, the system comprises: an arming actuator (4) for moving a sleeve (19), supporting a detonator (20), from a fixed safety position to a fixed armed position; and a disarming actuator (5) arranged opposite the arming actuator (4) and capable of returning the sleeve (19) from the fixed arming position to the fixed safety position.

Abstract: A method for harmonizing a frame of reference of an angular positioner to receive a moving body relative to the terrestrial frame of reference, the angular positioner carrying a measurement device for taking inertial measurements of the moving body, the method includes obtaining, using inertial measurements taken by a measurement device on-board the angular positioner during at least one predetermined operating period, values representative of a local magnitude of gravity as perceived by the measurement device and/or of a speed of rotation of the earth, the angular positioner being held stationary during the at least one operating period; evaluating, using the obtained values, at least one angular bias affecting the frame of reference of the positioner; and harmonizing the frame of reference of the positioner relative to the terrestrial frame of reference by compensating for the at least one angular bias as evaluated in this way.

Abstract: The invention relates to a deviation indicator with infrared imagery and a system for automatically aiming at and tracking a target. According to the invention, the deviation indicator with infrared imagery comprises an infrared pulsed laser (11) and the device (12) for controlling and processing infrared images also processes the laser pulse echoes.

Abstract: According to the invention, the rear part of the connecting element (1), which part is intended to be connected to a body (4) made of composite material, comprises at least one abutment (13) of annular shape, centered with respect to a longitudinal axis (10) and intended to come into contact with the front edge (14) of said body (4), and a longitudinal rearward extension (15) which is defined from said abutment (13) onward and which comprises a contact face (16) and has a shape and diameter suited to said body (4) so that its contact face (16) can come laterally into contact with a peripheral surface (17) thereof.

Abstract: A device for automatically determining the contours of heights of a relief includes an image receiving unit configured to receive an image of a predetermined geographical area. The image includes altimetric data. A background surface elimination unit eliminates the background surface of the relief. The background surface illustrates gradual variations in one or more altitudes of the geographical area. A top-hat algorithm having an adjustable structuring element can be used. A thresholding unit generates a binary image which only contains those reliefs having heights above a threshold value. An extracting unit extracts rough contours of heights of the relief from the binary image. A simplifying unit obtains a set of polygons by simplifying the rough contours. The polygons illustrate contours of the heights of the relief of the geographical area.

Abstract: The system of the present disclosure includes at least one flow deflector located outside the nozzle of the mobile and hinged on the rear bottom of the latter, and angular orientation means for the deflector by rotation about the longitudinal axis of the nozzle.

Abstract: According to the invention, before firing said projectile (M) from the carrier (L), the mean biases of the accelerometers and of the gyrometers of the inertial unit (IM) of said craft are determined using the inertial unit (IL) of said carrier (L) and, during the inertial navigation of said craft (M), the measurements of the accelerometers and of the gyrometers output by said inertial unit (IM) of said craft (M) are corrected by said mean biases determined before launching.

Abstract: According to the invention, the projectile (1) is provided with a strapdown homing device (2), said device having a lock-on phase during which the latter attempts to detect a target (C), and including an viewing direction (3), said viewing direction (3) being fixed with respect to the projectile (1) and extending along the longitudinal axis (4) of the latter, said projectile (1) further comprising control means (8) for automatically controlling said projectile (1) so as to cause the longitudinal axis (4) thereof, in flight and during the lock-on phase of the homing device (2), to trace a circle, the radius of which increases in time, until the target (C) is detected.

Abstract: The optimisation device (1) comprises means (4) for inputting data, means (2) for defining, on the basis of input data, time windows of availability and efficiency, relative to resources in consideration, an element (6) for expressing a space of solutions, i.e. said time windows, as probabilities, generating time-continuous functions in compliance with said time windows, an element (8) for optimising the resource allocation plan from the solutions space expressed as probabilities in this way, and user means (11) for using an optimal allocation plan defined in this way.

Abstract: The invention relates to a linking device having a bearing and a weapons system comprising such a device. The aim of the device is to adjust the rotational resisting torque of two coaxial cylindrical parts (8, 10) which are rotatable relative to one another about a shared axis (A). According to the invention, said bearing (21) includes two rings (23, 24) made of a resiliently deformable material, capable of respectively engaging with the two cylindrical portions (8, 10), and between which rolling elements (25) are arranged such as to be in contact with raceways of said rings, said device comprising a controllable member (22) for adjusting the tightening of the rings, capable of engaging with one of said parts in order to engage with said bearing.

Abstract: The system of the present method, system, and device comprises a mechanism for linking components including: a rod having a widened and elastically deformable end; an axially movable needle; and a body surrounding the interacting ends of said rod and said needle; and a control device acting on said needle and capable of switching said widened elastically deformable end from an open position to a closed position.

Abstract: The invention relates to an optimization system (1) which comprises means (4) for entering data, means (2) for defining a criterion for each one of the objectives considered using the data entered, an element (6) for optimizing each one of the criteria individually in order to obtain an optimal person for each one of said criteria, an optimal person including at least one optimal value feasible for the criterion, an element (8) for determining, by means of an evolutionary game algorithm, the survival coefficients of said optimal persons, and an element (10) for determining an optimal solution by mutating the optimal persons, by means of the survival coefficients and of the application of a mutation operator, the optimal solution including at least one final optimal value enabling the achievement of all the objectives considered to be optimized.

Abstract: System for steering a flying object using pairs of lateral nozzles—It comprises a gas generator (5) capable of being connected to lateral nozzles (7) via moveable plug devices (8), controlling the flow of gases coming from the generator through said nozzles. The lateral nozzles (7) are associated with at least one pair (P1, P2, P3, P4) such that the nozzles of the pair are aligned in a given axis (A1) and arranged opposite to each other, and, between the two aligned nozzles of the pair, a single controllable plug device (8) is provided, connected to said generator (5) and capable of controlling the flow of gases through said nozzles (7) in both directions.

Abstract: According to the invention, in order to lift said safety detent, use is made of a multi-vane fan (5), which is arranged inside the fuselage (2) of the projectile, but the vanes (4) of which pass through said fuselage (2) via a lateral opening (3).

Abstract: In order to allow decoy projectiles (6) to be launched with optimal quality of flight, the projectiles respectively include external cylindrical bodies (80) which are dimensionally identical, housed in the tube and each having a deployable-fins (9) aerodynamic stabilization device, that adopt a folded position inside the body when the projectile is in the tube, and a deployed position outside of the tube. To achieve that, the system includes a projectile ejection system (8), with an axial passage (12), arranged fixedly as a continuation of the tube, at the opposite end to the advance mechanism, and containing, in succession, after the control mechanism, the projectile (6) that is to be ejected by a controllable ejection device (25) connected to the module.

Abstract: A propulsion system including: a booster; a turbojet engine; the booster including a chamber which is fixed to a rear casing of the turbojet engine by being arranged along the longitudinal axis thereof, which chamber includes at a rear a jet pipe and includes at least one charge and a mechanism initiating the charge; and gas bleed tubes connected to the booster and which are configured either for igniting the combustion chamber of the turbojet engine on for starting the turbine of the turbojet.

Abstract: A method of fabricating a part, includes a) supplying powder particles; b) heating a first quantity of powder to a melting temperature higher than that of the powder with a beam, and forming, on a support, a first pool including the melted powder and a portion of the support; c) heating a second quantity of the powder, and forming, on the support, a second pool; d) repeating c) to form a first layer; e) heating an [n]th quantity of the powder, and forming an [n]th pool above the first layer; f) heating an [n+1]th quantity of the powder, and forming an [n+1]th pool downstream from the [n]th pool above the first layer; g) repeating f) to form a second layer above the first layer; and h) repeating e) to g) until the part is constructed. The powder particles reaching each pool are at a temperature well below the pool temperature.