Damping structure and applications
AssigneesEurocopter, Ateca
InventorsMarc Francis Vincent Dussac, Philippe Vie, Osmin Delverdier
Life of this patent
Estimating the term…
Abstract
A damping structure includes a member defining an internal cavity; an aggregate which includes at least solid bodies in contact and which completely fills the internal cavity; a rigid plate for closing off the internal cavity; and an elastic element which exerts elastic pressure on the rigid plate so as to constrain the aggregate. The member defining the cavity may be elongate with the internal cavity being formed longitudinally inside the member. At least some of said solid bodies may be hollow or solid, compact, made of different materials, of different shapes, and/or of different sizes.
Claims15
A damping system for an aircraft, the damping system comprising a number of damping bars, wherein at least one of said damping bars comprises a damping structure comprising:
- a member which is rigid and which defines an internal cavity;
- an aggregate which comprises at least solid bodies in contact and which fills said internal cavity;
- and
- a closing device for closing off said internal cavity, whereby vibrations of the damping bars are transmitted to the solid bodies of the aggregate, vibrational energy is dissipated through friction, so that vibrations are damped quickly and effectively.
A damping system for an aircraft, the damping system comprising a number of damping bars, wherein at least one of said damping bars comprises a damping structure comprising:
- a member which is rigid and which defines an internal cavity;
- an aggregate which comprises at least solid bodies in contact and which fills said internal cavity, said aggregate comprising hollow beads which are made of synthetic material;
- and
- a closing device for closing off said internal cavity, whereby vibrations of the damping bars are transmitted to the solid bodies of the aggregate, vibrational energy is dissipated through friction, so that vibrations are damped quickly and effectively.
Dependencies are inferred from the claim text.