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Thunderstorm downburst multifunction experiment simulator

A simulation device and multi-functional technology, which is applied in the field of multi-function test simulation devices for thunderstorm impact wind, and can solve the problems of single function of the device and inability to simulate the characteristics of the thunderstorm impact wind flow field.

Inactive Publication Date: 2011-08-31
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The thunderstorm impact wind simulation test cannot be carried out in the existing wind tunnel laboratory. A few foreign researchers have designed a simple wall jet device to simulate the thunderstorm impact wind, but the device has a single function and cannot simulate the complex flow field characteristics of the thunderstorm impact wind

Method used

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  • Thunderstorm downburst multifunction experiment simulator
  • Thunderstorm downburst multifunction experiment simulator
  • Thunderstorm downburst multifunction experiment simulator

Examples

Experimental program
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Effect test

Embodiment

[0022] Now take the wind resistance test of an airport terminal building model under the action of thunderstorm impact wind as an example to illustrate the use of this test device.

[0023] Such as Figure 6 As shown, the horizontal position of the steel structure column 6 and the steel structure column 7 and the specific installation positions and angles of the steel structure beam 15 and the steel structure beam 16 are adjusted according to the predetermined test simulation scale and the formation height and impact angle of the thunderstorm impact wind , so that the vertical distance from the air outlet of the variable-section vertical air duct 3 to the wooden platform 8 and the inclination angle of the wooden platform 8 meet the test requirements, and the airport terminal building model 17 is installed on the wooden platform 8 under the air duct 3 , and pre-buried pressure measuring points on the surface of the building 17, open and adjust the AC frequency converter 5 and m...

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Abstract

The invention discloses a thunderstorm downburst multifunction experiment simulator. A frame is fixed on a base plate; an upper part is suspended and provided with a vertical blow drier of a variable cross-section of a frequency conversion axial flow fan; vertical columns, two of which form one group and can move on the base plate are respectively arranged on both sides of the frame; a cross beamwhich can move up and down along the groups of the vertical columns is arranged between the two groups of the vertical columns; two parallel trusses pass through a rectangular frame and fixed on the cross beam; idler wheels which are uniformly distributed are arranged on the two trusses; a platform is paved on the idler wheels and can slide along the trusses; two chain wheels are respectively arranged on the middle parts of the two cross beams; the chain wheel is arranged on a rotating shaft of a direct current speed regulation motor; the three chain wheels are connected into an enclosing chain ring by chains; and the central point at the bottom surface of the platform is connected with the chains. Thunderstorm downbursts with different heights, incoming flow wind directions and moving speeds are simulated by changing the height, inclining angle and moving speed of a windarea platform; and the thunderstorm downbursts with different strengths are simulated by changing the rotating speed of the fan. The simulator is suitable for wind resistance experiments under the action of the thunderstorm downbursts.

Description

technical field [0001] The invention relates to a test simulation device, in particular to a multifunctional test simulation device for thunderstorm impact wind. Background technique [0002] my country is a country with frequent wind disasters. In recent years, a large number of houses have collapsed and casualties have been caused by wind disasters. The southeast coastal areas are more affected by typhoons, while the inland areas are most destructive by thunderstorms. Thunderstorm impact wind is a strong thunderstorm gale formed in thunderstorm weather. The essence of its formation is the rapid release of unstable energy in the atmosphere. The extreme wind speed of building wind resistance design in many inland areas is determined according to the wind speed of thunderstorm impact wind. . Due to the complex formation mechanism of thunderstorm impact wind, the impact wind speed is very large, and the formation height of the impact wind, the impact angle and the movement s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M9/00G01M9/08
Inventor 陈勇余世策徐挺胡志华
Owner ZHEJIANG UNIV
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