Damper for an object placed in a medium subjected to vibrations and corresponding damper system

A damper for an object placed in a medium subjected to vibrations, the damper having an idle state in an absence of vibrations, a first operating state in case of vibrations of a first type, and a second operating state in case of vibrations of a second type, a level of each vibration of the first type being less than a level of each vibration of the second type;

• the damper comprising:
• an outer support structure configured to be in rigid contact with the medium and forming a first fastening segment and a second fastening segment disposed facing one another;
• an inner support structure configured to be in rigid contact with the object;
• a pair of membranes formed of a first membrane extending between the inner support structure and the first fastening segment of the outer support structure in one or more directions of extension, and a second membrane extending between the inner support structure and the second fastening segment of the outer support structure in the one or more directions of extension, wherein each membrane of the pair of membranes is formed of a viscoelastic material including fibers, wherein the fibers work in bending when vibrations of the first type occur and work in tension when vibrations of the second type occur.