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A smart damper with synchronous self-monitoring of force and displacement

A damper and self-monitoring technology, which is applied to the testing of instruments, measuring devices, and mechanical components, etc., can solve the problem of less actual data of the damper

Active Publication Date: 2021-05-04
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The use of damping energy absorption as a technology to reduce the damage to engineering structures caused by earthquakes has been widely used in many fields and has developed rapidly, but there are still relatively few actual data on the actual effect of dampers in earthquakes

Method used

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  • A smart damper with synchronous self-monitoring of force and displacement
  • A smart damper with synchronous self-monitoring of force and displacement
  • A smart damper with synchronous self-monitoring of force and displacement

Examples

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Embodiment 1

[0024] Such as Figure 1~2 Shown: a kind of intelligent damper of synchronous self-monitoring of force and displacement, comprises damper (1), displacement measuring frame (2), camera system (3), it is characterized in that: described damper (1) comprises piston ( 1-1), the cylinder (1-2), the connecting section at both ends (1-3), the damping medium (1-4) and the image speckle (1-5), the piston (1-1) is located in the cylinder ( 1-2) Inside, the damping medium (1-4) is in the cylinder (1-2), when the damper (1) is disturbed and works, the piston (1-1) forces the cylinder (1-2) The damping medium (1-4) moves, so that the damping medium (1-4) converts the external energy into heat energy and dissipates it. The connecting sections (1-3) at both ends connect one end of the piston (1-1) to the cylinder One end of (1-2), the minimum net cross-sectional size of the connecting section (1-3) at both ends must meet the requirements of the elastic state of the damper (1) in normal use,...

Embodiment 2

[0030] Such as Figure 3-4 Shown: this embodiment is the same as the rest of embodiment 1, the difference is that the damper (1) is an anti-buckling support damper, and the damper (1) includes a core component (1-1), an outer restraint Components (1-2), connecting segments at both ends (1-3) and image speckle (1-4), the core component (1-1) is located inside the outer constraint component (1-2), and the outer constraint component (1- 2) The length of the damper (1) is slightly shorter than that of the core component (1-1), and its inner dimension is slightly larger than the cross-sectional dimension of the core component (1-1). When the damper (1) works normally, its outer dimension needs to meet the requirements of the outer constraint component ( 1-1) Requirements of being in an elastic state, the cross-sectional size of the connecting section at both ends (1-3) is slightly larger than that of the core part (1-1), and the image speckle (1-4) is in the unconstrained part (1 ...

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Abstract

The invention relates to an intelligent damper for synchronous self-monitoring of force and displacement, including a damper, a displacement measuring frame, and a camera system; It is on the surface that does not include the lower piston in the cylinder; the displacement measurement frame is fixed on the end of the cylinder near the image speckle side; the camera system is fixed on the displacement measurement frame, and its lens is aimed at the image speckle . The smart damper uses the DIC non-contact displacement measurement method based on image processing technology and the technology of the two-dimensional digital speckle dynamic strain measurement and analysis system. It has high measurement accuracy and strong practicability, and can realize synchronous self-monitoring of force and displacement. It has the advantages of relatively independent parts, convenient installation, replacement and maintenance, etc. It can be used for performance research and improvement of different types of dampers.

Description

technical field [0001] The invention belongs to the field of damper work performance testing, in particular to an intelligent damper with synchronous self-monitoring of force and displacement. Background technique [0002] With the improvement of people's anti-seismic awareness and the emergence of new anti-seismic methods, people have jumped out of the traditional concept of strengthening beams, columns, and walls to improve anti-seismic capabilities. The control damping system has all moved towards engineering reality. [0003] The use of damping energy absorption as a technology to reduce earthquake damage to engineering structures has been widely used in many fields and has developed rapidly, but there are still relatively few actual data on the actual effect of dampers in earthquakes. [0004] Structural Health Monitoring (SHM) has become an important field in the development of civil engineering disciplines. This technology can realize the automatic, real-time and co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/98E04H9/02G01B11/02G01B11/16G01M13/00
CPCE04B1/98E04H9/021G01B11/022G01B11/16G01M13/00
Inventor 戴靠山孔令炜牛小亮方文安
Owner SICHUAN UNIV
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