| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic multiple dynamic vibration absorber which is reduced in size and exhibits a high freedom degree in design by eliminating part of a back yoke constituting a magnetic circuit.SOLUTION: The magnetic multiple dynamic vibration absorber includes a fixed part structure body 3 fixed on a vibration control target 1, upper and lower fixed part magnet rows 9 fixed to the upper part and the lower part of the fixed part structure body 3 through a fixed part back york 8, a first movable part structure body 15 constituted by a non-magnetic body arranged inside the fixed part structure body 3, upper and lower first movable part magnet rows 19 fixed on the upper part and the lower part of the first movable part structure body 15 to confront the fixed part magnet row 9, a second movable part structure body 18 constituted of a non-magnetic body arranged inside the first movable part structure body 15, a second movable part magnet row 20 fixed to the second movable part structure body 18 to confront the upper and lower first movable part magnet rows 19, and a conductor plate 25 arranged in a gap between the upper and lower first movable part magnet rows 19 and the second movable part magnet row 20. |
