Patent ID: 8397591

Claim:
A process for testing the quality, in particular the stiffness and the phase, of an elastic joint for connecting two other parts while filtering vibrations transmitted between these two other parts, said elastic joint being meant to work in axial, radial or torsional direction, disposing or not disposing of one or more hydro-elastic chambers and of two cylindrical concentric support elements including an inner support element and an outer support element, the inner support element being located to a large extent inside the volume defined by the outer support element, the two support elements being connected by a set of components made of rubber, elastomer, plastic, or metallic parts, or a combination thereof, wherein said support elements are themselves respectively attached to the two other parts which the elastic joint connects, wherein a technique of testing by impact is applied within the timing of the production line of the elastic joint, for identifying joint quality through a frequential analysis of the oscillation of the impacted area of the elastic joint, wherein the values of the phase shift of the frequential analysis are compared with a bandwidth of permissible phase shift.