Intelligent damper for synchronously self-monitoring of force and displacement

A damper, self-monitoring technology, applied in the testing of instruments, measuring devices, mechanical parts, etc., can solve the problem of less actual data of dampers, and achieve the effect of high accuracy and strong practicability

Active Publication Date: 2020-02-14
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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  • Intelligent damper for synchronously self-monitoring of force and displacement
  • Intelligent damper for synchronously self-monitoring of force and displacement
  • Intelligent damper for synchronously self-monitoring of force and displacement

Examples

Experimental program
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Effect test

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 synchronously self-monitoring of force and displacement. The intelligent damper for synchronously self-monitoring of the force and displacement comprises a damper body, a displacement measuring frame and a camera system; the damper body comprises a piston, a cylinder, a two-end connection section, a damping medium and an image speckle, and the image speckle is located on the surface of the piston not included in the cylinder; the displacement measuring frame is fixedly connected to the end of the side, near the image speckle, of the cylinder;and the camera system is fixed to the displacement measuring frame, and a lens of the camera system is aligned to the image speckle. According to the intelligent damper, a DIC non-contact displacementmeasurement method based on an image processing technology and a technology of a two-dimensional digital speckle dynamic strain measurement and analysis system are used, the measurement accuracy is high, the practicability is high, force and displacement synchronous self-monitoring can be realized, the intelligent damper has the advantages of relative independence of each part, convenient installation, replacement and maintenance and the like, and can be used for studying and improving the performance 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 practice. [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 c...

Claims

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Application Information

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Patent Type & Authority Applications(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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