ELECTROMAGNETIC DAMPING DEVICES

Abstract

The invention relates to an electromagnetic damping device comprising an electromagnetic damper (5) connected to an electrical load (8), wherein the electromagnetic damper (5) includes: a magnet (5.1), a stator (5.6) and an elastic element, wherein the magnet (5.1) is fitted onto the shaft (5.3), wherein the shaft (5.3) is a smooth shaft with external threads at both ends fitted into the axially centered round hole of the magnet (5.1) with guide tubes at both ends of the magnet (5.1) by locking nuts (5.12) at both ends of the shaft (5.3) forming a loose fit; The upper end of the upper guide tube (5.10) has internal threads for tightening with the upper base plate (5.9) and is fitted to the damping structure by bolts (5.11), while the lower end of the lower guide tube (5.16) is fitted on the base plate (5.15), where the outer surfaces of these guide tubes slide on the bearing (5.14) and are held by retaining rings (5.5) at both ends of the guide tubes. The stator (5.6) is cylindrical in shape and contains the winding (5.2), the number of turns and the length of the winding (5.2) are selected to suit the required damping force.The elastic element consists of at least one cylindrical spring (5.4) and a stiffness adjustment mechanism (3). Accordingly, the electromagnetic damper can dampen or minimize vibrations of structures or machinery when installed, with the frequency and resistance of the dynamic damper adjustable to optimize damping and vibration reduction.

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