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A wind tunnel test device for measuring the wind pressure on the surface of the bridge segment vibration model

A model test device and vibration model technology, which is applied in measurement devices, aerodynamic tests, machine/structural component testing, etc. Effects of Test Efficiency

Active Publication Date: 2021-03-19
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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

Method used

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  • A wind tunnel test device for measuring the wind pressure on the surface of the bridge segment vibration model
  • A wind tunnel test device for measuring the wind pressure on the surface of the bridge segment vibration model
  • A wind tunnel test device for measuring the wind pressure on the surface of the bridge segment vibration model

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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...

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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 section. 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

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Application Information

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Patent Type & Authority Patents(China)
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
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