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Multistage magnetic rheopectic damper

A magneto-rheological damper and magneto-rheological fluid technology, applied in vibration suppression adjustment, non-rotational vibration suppression, etc., can solve problems such as application field restrictions

Inactive Publication Date: 2006-11-08
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing magneto-rheological dampers are mostly linear, used for vehicle suspension and shock absorption of civil buildings, suitable for low-frequency environments, and their application fields are limited

Method used

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  • Multistage magnetic rheopectic damper
  • Multistage magnetic rheopectic damper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] by figure 1 It can be seen that the specific composition of the multi-stage magnetorheological damper of the present invention is: the front cover 8 and the rear cover 2 are respectively mounted on the shaft 1 with a disc in the middle through the bearing 10, and the housing 7 is sleeved on the front and rear covers, The magnetorheological fluid 12 is placed in the cavity formed by the front and rear covers, the seal 11 and the shaft 1. Its characteristic is: 12 electromagnetic elements that work independently are installed equally in the cylindrical cavity between the front cover 8 and the back cover 2, and each electromagnetic element is fixed on the front cover and the back cover with a positioning pin through the magnet 3 on. The insulating material 4 is wrapped in the outer layer of the wire, and the wire 6 of the coil is connected to the RS232 interface 13. The snap ring 9 separates the magnetorheological fluid from the electromagnetic element.

[0012] figure 2 It ...

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PUM

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Abstract

An invention involving a multi-stage magneto-rheological damper, comprising a housing (7), a front cover (8), a rear cover (2), a shaft (1) with a disk, and a front and rear cover, a card The magnetorheological fluid (12) between the ring (9) and the shaft. It is characterized in that it also includes 12 independently working electromagnetic components composed of an iron core (5) wound with a coil, a magnetic conductor (3) and an insulating material (4), which are installed in equal parts on the front cover (8) and the rear Inside the cylindrical cavity of the cover (2). Existing dampers change the damping force by changing the magnitude of the current. Different from this, the damper changes the damping force by changing the size of the magnetic field. For this reason, 12 independently working electromagnetic components are used to output in stages, which is very important for the control system. Small impact, suitable for rotating mechanism and high frequency field.

Description

Technical field: [0001] The invention relates to a multi-stage magnetorheological damper. Background technique: [0002] There are generally three methods of using magnetorheological fluid to generate damping force: 1. Pressure mode, that is, using external pressure to make magnetorheological fluid pass through the channel between two fixed plates. When a magnetic field perpendicular to the plate is applied, the magnetic The viscosity coefficient of the rheological fluid increases, thereby increasing the resistance when the magnetorheological fluid flows; 2. Shear type, that is, the magnetic field is perpendicular to the two parallel plates. When the two plates move relative to each other, the magnetorheological changes under the action of the magnetic field The liquid forms the damping force; 3. The squeeze type, that is, the magnetorheological fluid under the action of the magnetic field is squeezed by changing the distance between the upper and lower plates to generate the dam...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F9/53F16F15/02
Inventor 孙伟胡海岩
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS