A magneto-rheological damping pipe clamp

Abstract

The invention discloses a magnetorheological vibration reducing pipe clamp mainly applied to the field of vibration control of pipelines. The vibration reducing pipe clamp mainly comprises a magnetorheological vibration reducing unit, an inner pipe clamp with a slide rail, a slide block, a T-shaped joint, a pin shaft and an embedded controller; and the magnetorheological vibration reducing unit mainly consists of a piston, a magnet exciting coil, a guide disc, a diaphragm, a support spring, a locking nut and the like. The vibration reducing pipe clamp converts two-dimensional vibration of a pipeline in the radial direction to reciprocating vibration of a piston in a cylinder barrel through a slide block and slide rail structure and a rotating shaft mechanism. The piston is wound with the magnet exciting coil; the controller adopts a semi-active control algorithm, and adjusts the current of the magnet exciting coil according to the vibration acceleration information of the pipeline, so that the magnetic field strength is adjusted, the damping force generated by a magnetorheological vibration reducer is changed, the vibration energy of the pipeline is consumed to the greatest extent, the vibration of the pipeline is reduced, and the vibration propagation in the pipeline is reduced; and under the power failure condition of the system, the vibration reducing pipe clamp still keeps a certain damping force to continuously work in a passive vibration reducing manner.

Description

technical field [0001] The invention relates to a pipeline damping device, in particular to a damping pipe clip with automatic damping force adjustment, which is suitable for hydraulic transmission and fluid delivery pipeline systems, and the invention can also be extended to the field of rotor system vibration control . Background technique [0002] The pipeline system is an important channel for medium transmission and energy transmission, and is widely used in power machinery, ships and submarines, aerospace, petrochemicals, power systems, sewage treatment and other fields. Piping system is one of the main ways for mechanical equipment and base structure to transmit vibration. In the pipeline system, pump rotating machinery will cause pipeline vibration during operation due to unbalanced rotors and other reasons. When the fluid flows through the pipeline, due to factors such as changes in the diameter of the pipeline in the pipeline system, pipeline turning, and the ope...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome problems such as pipeline fatigue wear, loose fasteners, and damage to auxiliary equipment such as valves and instruments caused by pipeline vibration in the pipeline system, the technical problem mainly solved by the present invention is to provide a rheological vibration damping pipe clamp , the damping pipe clamp can adjust the damping force according to the vibration acceleration information of the pipeline, absorb the vibration energy of the pipeline, reduce the vibration of the pipeline, reduce the noise caused by the vibration of the pipeline, control the transmission of vibration in the pipeline system, and suppress the vibration of the pipeline Fluid-solid coupling and interaction with the fluid medium in the pipeline

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