Magnetic liquid shock absorber based on first-order buoyancy principle

A magnetic liquid and shock absorber technology, which is applied in the direction of shock absorbers, friction shock absorbers, shock absorbers, etc., can solve the problems of high brittleness of permanent magnet materials, difficult processing of permanent magnets, and permanent magnet bumping into walls, etc., to achieve vibration reduction Excellent effect, long service life, and increased vibration reduction efficiency

Active Publication Date: 2021-02-23
TSINGHUA UNIV
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, magnetic liquid shock absorbers based on the principle of second-order buoyancy generally have the following disadvantages: 1. The permanent magnet material is relatively brittle, and the spacecraft will experience a process of acceleration during launch, which i

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Magnetic liquid shock absorber based on first-order buoyancy principle

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023] Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0024] Refer below figure 1 A magnetic liquid shock absorber based on the principle of first-order buoyancy according to an embodiment of the present invention will be described.

[0025] like figure 1 As shown, the magnetic liquid shock absorber 100 based on the first-order buoyancy principle according to the embodiment of the present invention includes a housing 1, a first permanent magnet 2, a second permanent magnet 3, a mass 4, a first porous medium member 5, The second porous medium member 6 and the magnetic liquid 7 .

[0026] The housing 1 defines a cavity. The walls of the cavity include a peripheral wall 13 and a first wall 11 and a second wall 12 op...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a magnetic liquid shock absorber based on a first-order buoyancy principle. The magnetic liquid shock absorber comprises a shell body, a first permanent magnet, a second permanent magnet, a mass block, a first porous medium piece, a second porous medium piece and a magnetic liquid, wherein a cavity is defined by the shell body, the first permanent magnet and the second permanent magnet are both arranged on the shell body, the mass block is located in the cavity and located between the first permanent magnet and the second permanent magnet, the first porous medium piece is located between the first permanent magnet and the mass block, and the second porous medium piece is located between the second permanent magnet and the mass block. Pores of the first porous mediumpiece and the second porous medium piece are filled with the magnetic liquid, so that the friction area of the magnetic liquid in the vibration attenuation process is increased, the vibration attenuation effect and the vibration attenuation efficiency of the magnetic liquid damping shock absorber are improved, and in addition, the first porous medium piece and the second porous medium piece further can prevent the first permanent magnet and the second permanent magnet from being broken, and therefore the service life of the magnetic liquid shock absorber is prolonged.

Description

technical field [0001] The invention relates to the field of mechanical engineering vibration, in particular to a magnetic liquid shock absorber based on the principle of first-order buoyancy. Background technique [0002] Magnetic fluid is a new type of functional material with fluidity and magnetism, and its unique properties make it widely used in engineering fields. The magnetic liquid damping shock absorber is a passive shock absorber with high sensitivity to inertial force, and has the advantages of simple structure, small size, large energy consumption and long life. Therefore, the magnetic liquid damping shock absorber is widely used in the low-frequency, small-amplitude vibration reduction of long straight objects of large spacecraft (such as solar panels and antennas of space stations, etc.). At the same time, it also has broad application prospects on the ground, such as vibration reduction of high-power antennas up to 100 meters long, vibration reduction of prec...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F16F6/00F16F7/112F16F7/08
CPCF16F6/005F16F7/08F16F7/112
Inventor 李德才李倩韩鹏栋
Owner TSINGHUA UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products