High-energy consumption self-decoupling magnetorheological damper

A magneto-rheological damper, high energy consumption technology, applied in building components, shockproof, etc., to achieve the effect of large output adjustable range, small size, and simple design

Inactive Publication Date: 2010-10-27
HOHAI UNIV +1
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In addition, a key factor that limits the application of magnetorheological dampers in the vibration control of civil engineering structures is the settlement stability of magnetorheological fluids. Since civil structures have been standing for a long time, and the time of encountering earthquakes and strong winds is extremely short, this problem It is even more prominent that the traditional single current control and single piston movement mode is difficult to effectively prevent the settlement of magnetorheological fluid

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
  • High-energy consumption self-decoupling magnetorheological damper
  • High-energy consumption self-decoupling magnetorheological damper
  • High-energy consumption self-decoupling magnetorheological damper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0036] Such as figure 1The high energy consumption self-decoupling magneto-rheological damper of the present invention as shown, it comprises a main cylinder body (6), an auxiliary cylinder body (13), ring spring (14) is placed on mild steel disc spring sheet (15) inside, respectively fixed on the cylinder head (2) and connecting cylinder head (12) by the screw rod (1) to form a new composite structure accumulator, the main cylinder body (6) and the auxiliary cylinder body (13) are connected by The cylinder head (12) is connected, the magnetic isolation sleeve (3) is nested outside the main cylinder body (6), the piston rod (25) is composed of two parts, which can be disassembled freely, and the two ring springs (14) are arranged on the spring On both sides of the self-decoupling baffle (4), the auxiliary piston (23) is symmetrically arranged, and a permanen...

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 a high-energy consumption self-decoupling magnetorheological damper with damping force decoupling property and failure self-protection function. The damper not only has high energy consumption and output, but also can effectively prevent subsidence of magnetorheological fluid, therefore, the invention is suitable for civil engineering structures. The damper mainly comprises a master cylinder body (6), an auxiliary cylinder body (13), a main piston (8), two auxiliary pistons (23), a piston rod (25), and novel composite-structure energy accumulators (14 and 15). Permanent magnets (9) arranged in the main piston (8) and the two auxiliary pistons (23) can effectively prevent subsidence of magnetorheological fluid, and can still provide corresponding damping force under the condition of power supply failure to enhance the safety of the structure. Magnetic circuit guiding components improve the utilization factor of the magnetic field. A mechanical spring self-decoupling device is mainly operated on the condition that the damper is under low-frequency driving, thereby overcoming the disadvantage of low output of the damper under low-frequency driving.

Description

technical field [0001] The invention mainly relates to the field of dampers, and is a damper used for anti-seismic (vibration) of civil engineering structures, especially a high-energy-consuming shock-absorbing (vibration) device with damping force decoupling characteristics and failure self-protection functions. Background technique [0002] Strong earthquakes have caused huge disasters to people all over the world. It is important to seek more reasonable and effective anti-seismic (vibration) methods, and to study safer, economical and reliable energy-consuming shock-absorbing (vibration) components, which are important for effectively reducing earthquake disasters. Practical significance. As an important branch of current smart material research, magnetorheological fluid has broad application prospects in the field of vibration control. It is a controllable fluid, which is a stable suspension formed by dispersing non-colloidal fine particles in an insulating carrier liqu...

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
Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/98
Inventor 杜成斌李志全于国军孙立国
Owner HOHAI 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