Abstract: An absorber for a connecting component including a head with two faces parallel to each other is traversed by a bore forming a housing for a ball-joint including a cage. The absorber includes two elements in the form of discs, parallel to each other, each with a central opening sufficiently wide so as not to cover the portions of the ball-joint protruding in relation to the head and a connector configured to connect the two elements at their periphery.

Abstract: The invention relates to a method of determining the thickness of a surface layer of a part having a structure different from that of the material constituting the part beneath said layer. It consists in generating a beam of Rayleigh waves on the surface of the part at a first frequency, in measuring the wave propagation velocity, in repeating the operation several times with Rayleigh waves at different frequencies, in recording the wave propagation velocities and the corresponding wavelengths and in classifying them by increasing wavelengths. The thickness of said layer is defined by the wavelength above which a plateau in the variation of said velocity is observed.

Abstract: This invention pertains to an absorber in elastomer material for a connecting component, such as a connection rod, the said component having a head with two faces parallel to each other and traversed by a bore forming a housing for a ball-joint with its cage. The absorber is characterised in that it has two elements in the form of discs, parallel to each other, each with a central opening sufficiently wide so as not to cover the portions of the ball-joint protruding in relation to the head and connected at their periphery by means of connection. The present invention is applied in particular to suspension connecting rods installation of the accessories gearbox of a turbojet.