Abstract: A method for determining one or more faults of an aircraft rotating machine. The method comprising a step of measuring at least one acoustic signal and at least one vibratory signal during a same operating phase of the rotating machine, a step of transforming each signal into an acoustic frequency spectrum, a step of determining a set of frequencies of interest in the set of frequency spectra, a step of forming a base of fault spectra, each fault spectrum comprising at least one frequency line, each frequency line being obtained by linear combination of frequencies of interest with predetermined weighting coefficients, a comparison step in order to obtain a score, and a step of determining faults of the rotating machine by analyzing the scores obtained.

Abstract: A ventilation system for mounting in an aircraft wheel along a central axis and including a rotor fitted with a plurality of blades and housed between a shroud support and a guard grid, the shroud support including a structural element juxtaposed with an aeraulic element, the structural element being made of metal and adapted to interlock into the wheel and support the rotor, the aeraulic element being made of plastic or resin and adapted to direct an air flow towards to the rotor.

Abstract: A wheel assembly including a wheel having an axis X-X? and a system for braking the wheel, in which a fan is arranged in order to cool the braking system. The rotor (14) of the fan is formed by a hub (20) and a plurality of blades (22) which rotate about the axis (X-X?) of the wheel and has a wall (54). The rotor (14) of the fan comprises a rotating collar (24) which connects the outer radial ends of the blades (22), so that an operational clearance (56) is provided between the wall (54) of the air circulation channel (50) and the collar (24).

Abstract: The wheel assembly comprises a wheel having an axis X-X? and a system for braking the wheel. A fan is arranged in the space of the wheel in order to draw in the flow of hot air (8) which is from the braking system and which is produced during the braking of the wheel. The rotor (14) of the fan is formed by a hub (20) and a plurality of blades (22) which rotate about an axis (X-X?), the rotor (14) being arranged in an air circulation channel (50) which is formed in the space of the wheel so that an operational clearance (56) is provided between a wall (54) of the air circulation channel (50) and the radial ends of the rotor (14). The rotor (14) of the fan comprises a rotating collar (24) which is arranged at the outer radial end of the blades (22), and the operational clearance (56) is provided between the wall (54) of the air circulation channel (50) and the collar (24).