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Double channel magnetic current damp variation device with recombination of mixing mode and flowing mode

A magnetorheological damper, flow mode technology, applied in transportation and packaging, vibration suppression adjustment, non-rotational vibration suppression, etc., can solve the problem that the magnetorheological fluid cannot pass through the channel smoothly, and it is difficult to achieve the compensation effect, so as to achieve recovery. The effect of large force value, small compression force value and simplified design calculation

Inactive Publication Date: 2007-08-29
CHONGQING UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

When the magnetorheological damper works under the condition of magnetic field control, the magnetorheological fluid in the annular channel becomes semi-solid, so that the volume-compensated magnetorheological fluid cannot pass through the channel smoothly, and it is difficult to achieve a good compensation effect

Method used

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  • Double channel magnetic current damp variation device with recombination of mixing mode and flowing mode
  • Double channel magnetic current damp variation device with recombination of mixing mode and flowing mode
  • Double channel magnetic current damp variation device with recombination of mixing mode and flowing mode

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Experimental program
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Effect test

Embodiment Construction

[0015] The structure of the dual-channel magneto-rheological damper with composite hybrid mode and flow mode is shown in Figure 1:

[0016] It is mainly composed of a working cylinder 1, a piston type magnetic field generator 2, a compensator 3 and a sealing device 4, etc. The working cylinder 1 is filled with magnetorheological fluid, and is divided into upper and lower chambers by the piston magnetic field generator 2. The compensator 3 is located at the bottom of the working cylinder 1, and the end of the working cylinder is sealed by a sealing device 4, which is different from the existing magnetic flow chamber. Variable damping controls are similar.

[0017] The piston-type magnetic field generator of the damper consists of a piston rod 5, a guide ring 6, a guide 7, a magnetic field spacer 8, a magnetic sleeve 9, a piston 10, an excitation coil 11, a bottom cover 12, a spring 13 and a valve plate 14 composition.

[0018] The upper end of the piston 10 is set with a guid...

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Abstract

The composite mixed mode and flow mode double-channel magnetic rheologic damper includes work cylinder, piston type magnetic field generator, compensator and sealing unit. The piston type magnetic field generator has two flow channels, including the outer channel without magnetic field and operating in mixed mode and the inner channel inside magnetic field and operating in flow mode. The damper may operate in no outer exciting current state with relatively small damping and in large outer exciting current state with relatively great damping. This kind of double-channel structure makes the magnetic rheologic damper possess greatly lowered damping under the condition of no external magnetic field, has expanded dynamic regulation range and even suitable for the semi-active control of vehicle suspension.

Description

Technical field: [0001] The invention belongs to the technical field of automobile suspension systems, and in particular relates to a dual-channel magneto-rheological damper used in composite mixed mode and flow mode in the automobile suspension system. Background technique: [0002] The existing disclosed magnetorheological dampers have different structures, and they generally have a magnetic field generator inside, and the annular magnetorheological fluid channel is located in the magnetic field generator (flow mode), or between the magnetic field generator and the cylinder. room (blending mode). A floating piston compensator or a compressible airbag compensator is used at the lower part of the working cylinder. When the magnetorheological damper works under the condition of magnetic field control, the magnetorheological fluid in the annular channel becomes semi-solid, so that the volume-compensated magnetorheological fluid cannot pass through the channel smoothly, and it...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F9/53B60G13/06
Inventor 张红辉廖昌荣余淼陈伟民黄尚廉
Owner CHONGQING UNIV
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