| 摘要 |
A passive damper 1 for dampening relative movement between members 2,3 of a structure to which the damper 1 can be connected, comprises a first set of parallel disposed plates 17, and a second set of parallel disposed plates 18. The first set of plates and the second set of plates overlap one another in an alternating fashion at a rotational joint with damping pads 25 between the plates 17, 18. The rotational joint comprises a pin or bolt 19 inserted through apertures 24 in the plates 17, 18. The apertures 24a in selected plates 18 are shaped and dimensioned to provide a predetermined amount of clearance with the pin or bolt 19 so that the pin or bolt 19 can move inside the aperture 24a to a predetermined extent without the selected plates 18 taking part in the damping action. |
