Shock absorber system comprising a primary shock absorber device and a secondary shock absorber device of different stiffnesses, associated structure and aircraft

A structure for aircraft comprising at least one damping system, each damping system extending along a longitudinal axis and comprising:

• a first base and a second base arranged at a distance from one another along the longitudinal axis;
• a primary damper device, the primary damper device comprising at least one beam, each beam extending along a direction parallel to the longitudinal axis, each beam comprising two opposite ends and being attached to the first base by one of its two ends and to the second base by another one of its two ends;
• a secondary damper device comprising two opposite ends, the secondary damper device being connected to the first base by the one of its two ends, and to the second base by another one of its two ends;
• the damping system being configured so that:
• at rest, the primary damper device has a stiffness, along the direction of the longitudinal axis, greater than a stiffness of the secondary damper device along the direction of the longitudinal axis;
• when a force applied to the damping system for urging the first base towards the second base has a value less than a predetermined limit value, each beam remains in a state of compression;
• and
• when the force has a value greater than or equal to the limit value, each beam undergoes buckling and the secondary damper device undergoes elastic deformation,
• each damping system being configured to take up at least part of the forces exerted on the structure.