Shock absorber and protection device and method for a part of an aircraft during a skidding phase

A skidding phase shock absorber and protection device for a part of an aircraft,

• comprising at least one support and a convex plate having a first end configured to undergo plastic deformation and by which it is secured to the support and a free second end opposite the first end, the plate being configured to assume a first position and a second position and to be moved from the first position to the second position, the plate being such that:
• in the first position it is configured to undergo plastic deformation at least at its first end connected to the support and its free second end is at a distance from the support with at least one elastic element between them;
• for passage from the first position to the second position it is configured by an action of compression forces acting in a first direction to undergo plastic deformation before producing resistance to action by the elastic element;
• and
• in the second position it is in contact with the support in at least one contact zone at a distance from the first end to acquire a stability enabling it to withstand friction in a second direction different from the first direction.