Self-adaptive double control magneto-rheological damper

Abstract

The invention discloses a self-adaptive double control magneto-rheological damper, comprising a work cylinder, a piston with large and small holes at the core part, a piston rod and a built-in linear generator, wherein two groups of magnet exciting coils are wound in the middle of the piston; when the piston rod pushes the piston to move in the work cylinder, a rotor of the built-in linear generator fixed at the bottom of the large hole of the piston is driven to do linear motion in a stator to generate electric energy which is transmitted to one group of magnet exciting coils of the piston, so that the piston of the self-adaptive double control magneto-rheological damper generates a magnetic field and further generates a damping force; the electric energy output by the built-in linear generator is in direct proportion to the speed of the piston moving in the work cylinder, so that the self-adaptive double control magneto-rheological damper can automatically adjust the output damping force according to the motion speed of the piston; in addition, the self-adaptive double control magneto-rheological damper can control the other group of magnet exciting coils on the piston of the self-adaptive double control magneto-rheological damper through an external control power supply.

Description

technical field [0001] The invention belongs to a magnetorheological damper, in particular to an adaptive dual-control magnetorheological damper. Background technique [0002] The magnetorheological damper is an intelligent damping device, and its damping force can be remotely adjusted steplessly through the control power supply. Therefore, the ordinary magnetorheological damper must be equipped with a control power supply to achieve magnetorheological damping. In order to reduce the dependence of magnetorheological dampers on the control power supply, people have developed permanent magnetorheological dampers, although permanent magnetorheological dampers can be operated without control power. It works independently, but the output performance of its damping force is single and it is difficult to adapt to different vibration reduction occasions. For this reason, people have developed a magneto-rheological damper with its own power generation device, such as the Chinese pate...

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Problems solved by technology

[0003] Aiming at the disadvantages of complex mechanical structure and low reliability of the existing magnetorheological damper with its own power generation device, the present invention proposes an adaptive dual-control magnetorheological damper, and the adaptive dual-control magnetorheological damper The advantage is that this kind of damper only needs to use the power provided by its built-in linear generator to automatically adapt its output damping force to the needs of external vibration reduction, and can also use the external control power supply to adjust its output damping force , therefore, the reliability of the adaptive dual-control magnetorheological damper is high, and the adaptive dual-control magnetorheological damper uses a built-in linear generator to provide electric energy, and there is no rotary motion mechanism, so the structure is simple

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