Adaptive linear magnetic liquid damping vibration absorber

A magnetic liquid, self-adaptive technology, applied in the direction of shock absorber, shock absorber, spring/shock absorber, etc., can solve the problems of poor self-adaptability, limited vibration damping effect, etc., and achieve the effect of increasing the relative displacement

Inactive Publication Date: 2015-04-08
BEIJING JIAOTONG UNIV
View PDF6 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the common external vibration has uncertainty, and its vibration frequency changes randomly, which makes the common magn

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
  • Adaptive linear magnetic liquid damping vibration absorber
  • Adaptive linear magnetic liquid damping vibration absorber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The present invention will be further described below in conjunction with accompanying drawing:

[0018] The shock absorber is an adaptive linear magnetic liquid damping shock absorber, and its structural section is shown in figure 1 As shown, it includes non-magnetic end cap 1, permanent magnet sheet 2, non-magnetic circular tube 3, magnetic liquid 4, induction coil 5, cylindrical permanent magnet 6, excitation coil 7, armature 8, cover 9, energy management circuit 10;

[0019] The cylindrical permanent magnet 6 with the magnetic liquid 4 adsorbed on both ends is placed in the non-magnetic circular tube 3 , and is suspended in the non-magnetic circular tube 3 by the magnetic liquid 4 as an inertial mass. The non-magnetic end cap 1 with the permanent magnet sheet 2 fixed on the inner wall is fixed on an open end of the non-magnetic circular tube 3, and the permanent magnet sheet 2 is opposite to the pole of the same name of the cylindrical permanent magnet 6. An induc...

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 relates to an adaptive linear magnetic liquid damping vibration absorber and belongs to the field of mechanical engineering vibration. A vibration pick-up system of the vibration absorber consists of an inertial mass block and a magnetic reed structure; the rigidity of a magnetic reed can respond to external vibration and can be automatically adjusted; the damping of the vibration absorber consists of electromagnetic damping and viscous damping. A cylindrical permanent magnet adsorbing magnetic fluid serves as the inertial mass block, is positioned in a circular tube, and is subjected to the action of repulsion of magnetic fields of a permanent magnetic sheet and an excitation coil at two ends of the circular tube; the magnetic repulsion resultant force provides restoring force for the inertial mass block, wherein the magnetic repulsion provided by the excitation coil is changeable, and is controlled by collection energy of an induction coil positioned on the outer wall of the circular tube from the external vibration, so the inherent frequency of the magnetic liquid vibration absorber adapts to the external vibration and constantly approaches to the frequency of the external vibration, and the vibration damping performance is improved.

Description

technical field [0001] The invention relates to an adaptive linear magnetic liquid damping shock absorber, which belongs to the field of mechanical engineering vibration. Background technique [0002] The vibration pickup system used in the common passive damping and vibration reduction system is mainly composed of springs and inertial mass mechanically connected, which makes it show poor fatigue resistance and high noise; another vibration pickup system uses magnetic springs instead Mechanical spring, in order to increase the structural stability of the magnetic spring structure, it is usually necessary to increase the guiding device of the inertial mass block, such as a guide rod, a sleeve, etc., which will increase the friction between the permanent magnet and the guiding device and reduce its vibration pickup performance . [0003] Magnetic liquid is a stable colloidal suspension formed by dispersing nano-ferromagnetic or ferrimagnetic particles coated with surfactants ...

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): F16F9/53
CPCF16F9/535
Inventor 王四棋李德才
Owner BEIJING JIAOTONG 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

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap