Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Wind tunnel test device for measuring surface wind pressure of bridge segment vibration model

A model test device and vibration model technology, which is applied in measurement devices, aerodynamic tests, and testing of machine/structural components, etc., can solve problems such as the inability to effectively measure surface wind pressure, simplify wind tunnel tests, improve The effect of trial efficiency

Active Publication Date: 2019-11-15
SOUTHEAST UNIV
View PDF10 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the commonly used pressure measurement methods cannot effectively measure the surface wind pressure in these areas.

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
  • Wind tunnel test device for measuring surface wind pressure of bridge segment vibration model
  • Wind tunnel test device for measuring surface wind pressure of bridge segment vibration model
  • Wind tunnel test device for measuring surface wind pressure of bridge segment vibration model

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] Below in conjunction with specific embodiment, further illustrate the present invention, should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various equivalent forms of the present invention All modifications fall within the scope defined by the appended claims of the present application.

[0025] Such as Figure 1-5 As shown, a wind tunnel test device based on the pressure-sensitive paint technology to measure the surface wind pressure of the segmental vibration model, including the test model 1, the upper camera tripod 2, the lower camera tripod 3, the tripod fixing clip 4, and the quick-installed camera Board 5, upper CCD camera 6, lower CCD camera 7, filter 8, upper light source 9, lower light source 10, suspension connecting rod 11, suspension spring 12, wind tunnel laboratory 1...

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

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Login to View More

Abstract

The present invention discloses a wind tunnel test device for measuring surface wind pressure of bridge segment vibration model. The device comprises an elastic suspension segment model test device portion, a pressure sensitive paint technology portion, and a synchronous vibration device portion. The elastic suspension segment model test device portion includes a test model, a suspension connecting rod, a suspension spring and a force measuring device; the pressure sensitive paint technology portion comprises a computer, a CCD camera, a filter, a light source and a pressure sensitive paint; and the synchronous vibration device portion includes a camera stand, a stand holder, and a camera quick mounting plate. The device realizes synchronous vibration of the CCD camera in the pressure sensitive paint technology and the test model of the test device in the elastic suspension segment model through the synchronous vibration device, and realizes relative static state of the CCD camera and the test model, so that the pressure sensitive paint technology is applied to the vibration model.

Description

technical field [0001] The invention belongs to the technical field of precise measurement, in particular to a wind tunnel test device for measuring the wind pressure on the surface of a vibration model of a bridge segment. Background technique [0002] In the field of bridge construction, the design and calculation of large bridges need to measure the pressure on the surface of the test model in the wind tunnel, so as to further test its wind resistance performance in the natural environment, so as to optimize the design of the bridge. In wind tunnel tests, pressure measurement and vibration measurement are commonly used research methods. At present, the means of vibration measurement are relatively mature, and generally adopt the method of rigid or elastic suspension segment model test to measure. The pressure measurement method is to drill many measurement holes on the surface of the test model, and bury the pressure measurement tubes in the measurement holes. The pressu...

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): G01M9/00G01M9/06
CPCG01M9/00G01M9/06
Inventor 张文明李东民王志伟常佳琦
Owner SOUTHEAST 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
Eureka Blog
Learn More
PatSnap group products