A device for fixing wind tunnel wedges

A technology of wind tunnel and metal cap, which is applied in the field of base fixing devices, can solve the problems of being easily blown down by the wind and test wind speed, etc., and achieve the effects of strong anti-friction ability, wide wind speed range, and improved compressive stability

Active Publication Date: 2018-06-15
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to propose a more reliable fixing method for the existing common fixing methods of wind tunnel wedges, which are easy to be blown down by the wind or the test wind speed is low, and can greatly increase the test wind speed

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  • A device for fixing wind tunnel wedges
  • A device for fixing wind tunnel wedges
  • A device for fixing wind tunnel wedges

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Embodiment Construction

[0015] The specific embodiments of the present invention will be further described below in conjunction with the drawings and technical solutions.

[0016] Such as figure 1 As shown, a rubber cushion layer 3 is embedded in the groove 2 of the detachable base 1, and the rubber cushion layer 4 is pasted on the bottom surface of the base.

[0017] Such as figure 2 As shown, a screw rod 6 (generally 2-3cm in diameter, 8-10cm in length) is welded on the top of the vertical shaft 5, a nut 7 is placed on the screw rod, and a metal cap 8 is fastened on the top of the screw rod 6, and the metal A rubber cushion 9 is pasted on the top of the cap 8.

[0018] Such as image 3 As shown, the wedge main body 10, the wedge shaft 5 and the screw rod 6 are consolidated into a whole, the detachable base (1-4) is placed flat on the designated position, and the wedge is vertically inserted into the groove 2. Make it press on the cushion layer 3. By rotating the nut 7 on the screw rod 6, the metal cap...

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Abstract

The invention relates to a device for fixing a wind tunnel wedge, which belongs to a wind tunnel simulation device and method. The device includes a detachable base, a metal cap, a screw, a nut, a rubber pad and a wedge vertical shaft; the detachable base is a metal plate with a T-shaped groove, which is set at the bottom of the wedge vertical shaft, and the T-shaped groove A layer of rubber cushion is adhered to the bottom of the inner and metal plate; a layer of rubber cushion is adhered to the top of the metal cap; one end of the vertical shaft of the wedge is fixed in the T-shaped groove, and the other end is connected to a screw rod, which is covered by the metal cap Inside; by rotating the nut on the screw rod, the metal cap fastened on the upper part of the screw rod is pushed to move upward, so that it is pressed against the top of the wind tunnel to fix the wedge. The groove of the base of the invention constrains the local deformation and instability of the wedge, the base increases the contact area between the bottom of the wedge and the bottom surface of the wind tunnel, and increases the stability of the wedge; the multi-layer rubber cushion makes the wedge and the top and bottom plates of the wind tunnel The contact is more uniform, which increases the anti-skid ability between the two, and makes the fixing of the wedge more reliable.

Description

Technical field [0001] The invention relates to a new method for reliably fixing a wedge device used in a wind tunnel test, in particular to adding a base fixing device with a T-shaped groove for the wedge, in the base groove, the base bottom plate and the top surface of a metal cap Each additional layer of rubber cushion makes the fixing of the wedge more reliable. Background technique [0002] Wind tunnel test is one of the important methods to study the wind resistance of structures. In the passive simulation of the atmospheric near-Earth boundary layer, a fixed wedge is often used as a turbulence generator. The conventional method of the wind tunnel test room is: first put the wedge vertically at the designated position, the lower part of the wedge directly contacts the bottom of the wind tunnel, and then cover the top screw rod with a grooved cylinder (hereinafter referred to as the metal cap , Generally made of aluminum), and finally by rotating the nut on the screw, the m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M9/04
Inventor 许福友袁良东葛晓萌张哲
Owner DALIAN UNIV OF TECH
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