Wind tunnel damping net tensioning device and wind tunnel stability segment

Abstract

The invention relates to the technical field of wind tunnels, and provides a wind tunnel damping net tensioning device and a wind tunnel stability segment. The wind tunnel damping net tensioning device comprises an installation mechanism, a tension mechanism and a clamping mechanism, wherein the installation mechanism comprises a bearing installation base and a joint bearing installed on the bearing installation base, the tension mechanism comprises a pull rod, the pull rod penetrates the joint bearing and the end of the pull rod is hinged with the clamping mechanism, the clamping mechanism isused for clamping the damping net. When the wind tunnel damping net tensioning device is arranged in periphery of the wind tunnel stable segment, tension degree of the wind tunnel damping net tensioning device can be regulated in a large range. Further, the wind tunnel damping net tensioning device comprises the joint bearing, the pull rod penetrates the joint bearing and the end of the pull rodis hinged with the clamping mechanism, so that the tension mechanism can drive the damping net to deflect in any direction, so as to effectively release temperature difference stress of the damping net under high and low temperature role and prevent the root of the damping net from being cut off by the clamping mechanism under repeated action of pneumatic load.

Description

technical field [0001] The invention relates to the technical field of wind tunnels, in particular to a wind tunnel damping net tensioning device and a wind tunnel stabilizing section. Background technique [0002] The wind tunnel is artificially generated and controlled air flow to simulate the flow of gas around the tested product. In the wind tunnel flow field test, the incoming flow in the stable section is very turbulent, and the velocity uniformity index of the flow field cannot directly meet the requirements of the actual airflow simulation, and the incoming flow needs to be rectified. The damping net is a main rectifying device in the stable section of the wind tunnel, and the tension of the damping net has an important influence on the uniformity of the flow field. [0003] The fixed forms of the existing wind tunnel damping net mainly include fixed connection, elastic connection, concave-convex compression ring, and tensioning of tensioning screws. The fixed conn...

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Problems solved by technology

[0005] One of the objectives of the present invention is to provide a wind tunnel damping mesh tensioning device and a wind tunnel stabilizing section to solve the problems in the prior art that the tension adjustment range is small, the damping mesh is easily damaged by shearing, and the high and low temperature effects cannot be released. Technical Problems of Temperature Difference Stress of Lower Damping Mesh

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