MULTI-DIRECTIONAL ELECTROMAGNETIC DAMAGE SHUTDOWN DEVICE

Abstract

The invention relates to a multi-directional electromagnetic damping device for reducing vibrations in the low-medium frequency range for a large-oscillating pipe section on a fluid pipeline, which includes: a mass DVA (4) connected to the pipe clamp (2) by electromagnetic dampers (3) arranged in two orthogonal pairs in the plane containing the pipe cross-section, the shafts (3.3) of these electromagnetic dampers connected by couplings (6) at the shaft ends, each electromagnetic damper (3) having a magnet (3.1), a stator (3.6) containing a coil (3.2), two springs (3.4) with two corresponding stiffness adjustment mechanisms (3.20) and a shaft (3.3), each electromagnetic damper (3) connected to an electrical load (8) together with the coil (3.2) forming a series RLC circuit, in which the spring stiffness (3.4), mass DVA (4) and electrical load (8) It is adjustable.Accordingly, the vibration damper can reduce pipeline vibrations in any direction within the plane containing the pipe cross-section, with the frequency and damping force of the vibration damper adjustable to optimize vibration reduction for each specific pipe section.

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