Artificial porous barrier model positioning and installation device for wind tunnel test

Abstract

The invention discloses an artificial porous barrier model positioning and installation device for wind tunnel test. In the positioning and installation device, an output shaft of a servo motor is coaxially connected a sliding lead screw, and a lead screw nut and the sliding lead screw are connected in a matched manner to form a lead screw pair; linear guide rails are arranged at the two sides ofthe sliding lead screw in parallel; sliding blocks are slidably connected on the linear guide rails; the sliding blocks at the two sides are fixedly connected with the lead screw nut in the middle through a sliding block connection member; a support plate is arranged above the lead screw nut, and the two sides of the support plate are fixedly connected with the sliding blocks; support frames are vertically arranged at the front and back ends of the support plate, and are used for fixedly connected with an artificial porous barrier model; under the drive of the sliding lead screw pair, the support frames, supported and driven by the support plate, slide back and forth along the linear guide rails; and furthermore, the artificial porous barrier model is driven to slide back and forth to realize positioning and installation. The device realizes automatic adjustment of the artificial porous barrier model in a wind tunnel test system, and improves adjusting precision of the artificial porous barrier model.

Description

technical field [0001] The invention belongs to the technical field of porous barrier model test devices and is suitable for wind tunnel tests, in particular to an artificial porous barrier model positioning and installation device for wind tunnel tests. Background technique [0002] The research on the dust retention effect of porous barriers mainly includes three research methods based on field measurement, wind tunnel test and numerical simulation. Comparability, inconsistency of test methods, and test models susceptible to interference from environmental conditions and other factors lead to differences in the amount of dust retained by the same porous barrier, making it impossible to obtain accurate test data. [0003] Compared with the method of field measurement, the real test environment can be simulated in the wind tunnel test, and controllable natural conditions including the amount of natural dust retention can be provided, including the dust source, environmental ...

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Problems solved by technology

[0005] In the process of studying the dust retention effect of porous barriers in the existing wind tunnel tests, usually the test personnel manually install the artificial porous barrier model in the wind tunnel test system with simple pendants such as sticky hooks, and each time the artificial porous barrier model is adjusted 5 The position of the artificial porous barrier model 5 needs to be manually completed, the operation is more complicated, the specificity is strong, and the positioning and installation effect is poor. The position adjustment of the artificial porous barrier model 5 is not systematic, the adjustment accuracy is not high, and the test efficiency is low.

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