Active magnetically suspended vibration device controlled in three axes

Abstract

Abstract The device comprises a hollow outer body (10) fixed to a structure (9), the vibrations of which are to be controlled; an inner spherical body (20) arranged inside the hollow outer body (10); six active magnetic bearing elements (30, 40, 50, 60, 70, 80) arranged in pairs in three axes (XX', YY', ZZ') defining an orthogonal location system in order to hold the spherical body (20) without contact inside the outer body (10), at least three detectors (such as 85) of the position of the inner body (20) with respect to the outer body (10), at least one device (8) for detecting vibrations, and control circuits (300) receiving data from the position detectors and from the vibration-detection device (8) and controlling the supply of the six active magnetic bearing elements (30, 40, 50, 60, 70, 80) so as to control the position of the inner body (20) in order to create, on the outer body (10), reaction forces which, depending upon requirements, generate vibrations in the structure (9) or, on the contrary, oppose the forces of the vibrations detected on the structure (9). …<IMAGE>…

Inventors

• 👤 Helmut Habermann
• 👤 Pierre Lemerle

Bibliographic Details