Variable-stiffness variable-damping shock absorber based on magnetorheological damper

A magneto-rheological damper and shock absorber technology, applied in the direction of spring/shock absorber, shock absorber, shock absorber-spring combination, etc., can solve problems such as not necessarily applicable, no variable stiffness, fixed stroke, etc., to achieve The effect of a large stroke

Active Publication Date: 2015-01-28
HEFEI UNIV OF TECH
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

It can be seen that the shock absorbers designed by these two patents only have the effect of variable damping, without the characteristic of variable stiffness, and the obvious shortcoming is that the stroke is fixed, which may not be suitable for occasions requiring large strokes.

Method used

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  • Variable-stiffness variable-damping shock absorber based on magnetorheological damper
  • Variable-stiffness variable-damping shock absorber based on magnetorheological damper

Examples

Experimental program
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Embodiment Construction

[0025] Such as figure 1 As shown, a variable stiffness variable damping shock absorber based on a combination of a magneto-rheological damper and a spring includes an inverted U-shaped outer cylinder body 9, and an external fixed connector at the top of the inverted U-shaped outer cylinder body 9, two A shaft pin is welded on the inner side of the bottom of the end, and it is characterized in that: a central cylinder 5 is also included, and two symmetrical slideways 10 are arranged on the outside of the central cylinder 5, and the inverted U-shaped outer cylinder 9 is installed on the The outside of the central cylinder 5; the central cylinder 4 is provided with a piston 14 inside, and the top sealing end cover 12 forms an inner cavity 13, and the end cover is provided with a through hole, and the piston rod 6 connected to the piston 14 passes through the through hole Extend into the inverted U-shaped outer cylinder body 9, and link to one end of the spring 7 in the inverted U...

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Abstract

The invention discloses a variable-stiffness variable-damping shock absorber based on a magnetorheological damper. The shock absorber is characterized in that an outer cylinder body is glidingly mounted on the outer side of the magnetorheological damper; a spring mounted in the outer cylinder body is connected with the piston rod of the magnetorheological damper; when the magnetorheological damper and the spring vibrate by external pressure, the outer cylinder body slides on the outer side of the magnetorheological damper to change the travel of the whole shock absorber, and meanwhile, the electrification coil of the magnetorheological damper is electrified and the shape of a magnetorheological fluid is changed to change the damping of the shock absorber. According to the shock absorber, the magnetorheological damper is combined with the spring, so that the stiffness and damping of the shock absorber can be changed; the shock absorber is large in travel and can meet the requirements of an environment in need of the shock absorber with large travel.

Description

technical field [0001] The invention relates to a shock absorber, in particular to a variable stiffness variable damping shock absorber based on a magneto-rheological damper and a spring. Background technique [0002] Vibration can be seen everywhere in people's daily life, such as frequently used watches, razors and so on. Vibration is cleverly used in the operation of many machines, but there are also many cases where vibration will adversely affect people's work. It will cause fatigue of the structure and greatly shorten the service life of mechanical devices. [0003] Due to the rapid development of science and technology, people have more and more strict requirements on shock absorbers in many occasions, which makes many traditional shock absorbers unable to meet the vibration reduction requirements in specific occasions. However, the traditional shock absorber composed of a spring system cannot change its own damping and stiffness to meet the needs of specific occasio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F13/00F16F9/53
CPCF16F9/535F16F13/007
Inventor 邓华夏张进梁超佳于连栋李卫华孙帅帅
Owner HEFEI UNIV OF TECH
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