A device for changing the dynamic stiffness of a gantry or overhung structure

摘要

Apparatus for changing the dynamic stiffness and / or damping of a gantry or overhung structure with a gantry (1) or stand (5) slidably guided on a frame (8), the gantry (1) or stand (5) being movably connected to at least one other movable element. Between the frame (8) and the portal (1) or stand (5) or between two movable parts of the structure are provided ropes (10) connected at least one end firmly to the first part and at least one second end to the second part of the portal or overhung construction. The ropes (10) form at least one pair, one rope (10) being guided in the opposite direction to the other rope (10).