Anti-vibration suspension device for a mechanical element, and an aircraft

An anti-vibration suspension device for a mechanical assembly, the suspension device provided with at least one suspension means, the suspension means comprising a tuned mass damper that performs swinging motion, the tuned mass damper comprising a mass support and an inertial mass carried by the mass support, the suspension means including at least a first actuator generating dynamic forces to act on a swinging motion of the tuned mass damper, the suspension device having at least first calculation means controlling the first actuator, the first calculation means connected to a measurement system measuring a vibratory response in order to adjust the swinging motion, wherein the inertial mass is movable longitudinally in translation relative to the mass support, the suspension device including a second actuator that is connected to the inertial mass to move the inertial mass longitudinally relative to the mass support, the suspension device including second calculation means controlling the second actuator in order to adjust a position of the inertial mass relative to the mass support,

• wherein the first actuator comprises at least one magnetized member and at least one electric coil, the at least one magnetized member or the at least one coil secured to the inertial mass,
• wherein the inertial mass comprises at least one solid that is longitudinally slidable along the coil, the solid including the at least one magnetized member, the at least one magnetized member positioned facing the at least one coil,
• wherein the solid presents at least one opening having a longitudinal segment of the coil pass therethrough,
• wherein the magnetized member comprises a magnetized face of the inertial mass, and the at least one opening is defined at least in part by the magnetized face.

An anti-vibration suspension device for a mechanical assembly, the suspension device provided with at least one suspension means, the suspension means comprising a tuned mass damper that performs swinging motion, the tuned mass damper comprising a mass support and an inertial mass carried by the mass support, the suspension means including at least a first actuator generating dynamic forces to act on a swinging motion of the tuned mass damper, the suspension device having at least first calculation means controlling the first actuator, the first calculation means connected to a measurement system measuring a vibratory response in order to adjust the swinging motion, wherein the inertial mass is movable longitudinally in translation relative to the mass support, the suspension device including a second actuator that is connected to the inertial mass to move the inertial mass longitudinally relative to the mass support, the suspension device including second calculation means controlling the second actuator in order to adjust a position of the inertial mass relative to the mass support,

• wherein the first actuator comprises at least one magnetized member and at least one electric coil, the at least one magnetized member or the at least one coil secured to the inertial mass,
• wherein the inertial mass comprises at least one solid that is longitudinally slidable along the coil, the solid including the at least one magnetized member, the at least one magnetized member positioned facing the at least one coil,
• wherein the solid presents at least one opening having a longitudinal segment of the coil pass therethrough,
• wherein the at least one coil describes a closed loop around an empty space, the coil presenting two longitudinal segments connected together by two transverse branches, the solid presenting at least two openings separated transversely by a partition of the solid, the two longitudinal segments passing respectively through the two openings and arranged transversely on either side of the partition.