A magnetorheological particle damper with energy recovery

Abstract

The invention relates to a magnetorheological particle damper capable of recovering energy, including a particle damping mechanism, a magnetorheological damping mechanism and an energy recovery mechanism; the particle damping mechanism includes a ball screw, blades, and particles, and the ball screw converts linear motion It is the rotation of the blade, thereby causing the particles to squeeze and collide with energy consumption; the magneto-rheological damping mechanism includes a cylinder, a piston, a one-way valve and an annular flow channel. The piston and the annular flow channel divide the internal space into upper, middle and lower cavities. Coils are installed in the annular flow channel, and pipes are arranged on both sides of the cylinder. The movement of the piston causes the magnetorheological fluid to pass through the annular flow channel and the pipe, and the magneto-rheological effect occurs when passing through the annular flow channel. Controllable damping is obtained by changing the current passed into the coil Force, the one-way valve converts the movement of the liquid in the pipeline into one-way flow, so as to facilitate the recovery of energy; the connecting piece enables the particle damping mechanism and the magnetorheological damping mechanism to work together to enhance the energy consumption capacity of the system and improve the reliability of the system .

Description

technical field [0001] The invention belongs to the field of vibration control of engineering structures, and in particular relates to a magnetorheological particle damper capable of recovering energy. Background technique [0002] The magnetorheological damper is a new type of semi-active damping device based on the controllable characteristics of the magnetorheological fluid. It has the advantages of fast response, simple structure, small size, and easy control. It is an ideal vibration isolation and vibration reduction device. , has broad application prospects in the field of vibration control. The excitation coil of the magnetorheological damper mainly has two winding methods, that is, it is wound on the cylinder (referred to as the outer winding type) and wound on the piston (referred to as the inner winding type). When the excitation coil is wound outside the piston, the magnetic current Most of the magnetic force lines of the variable damper are parallel to the flow ...

AI Technical Summary

Problems solved by technology

[0003] The common magneto-rheological damper winds the electromagnetic coil on the piston of the damper, and the wire of the damper will follow the movement of the piston. Therefore, under long-term reciprocating motion and sudden large displacement impact, it is easy to cause damage to the wire, and there are extreme At the same time, the magnetic field of the moving coil magnetorheological damper, because the coil is always moving, the magnetic field generated by it is always moving, which will reduce the response speed of the magnetorheological effect

[0004] Most of the liquid in the common damper moves back and forth irregularly, which affects the collection and utilization of energy

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