CN103913287A - Tornado testing device for building wind engineering - Google Patents
Tornado testing device for building wind engineering Download PDFInfo
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- CN103913287A CN103913287A CN201410173728.4A CN201410173728A CN103913287A CN 103913287 A CN103913287 A CN 103913287A CN 201410173728 A CN201410173728 A CN 201410173728A CN 103913287 A CN103913287 A CN 103913287A
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- wind
- tornado
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- vortex generator
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Abstract
The invention provides a tornado testing device for building wind engineering. The tornado testing device can accurately simulate a wind field of a tornado and the wind load effect of the tornado on a building. The tornado testing device comprises stand columns and a motor, wherein longitudinal beams are arranged on the tops of the stand columns, the longitudinal beams are connected with transverse beams, rolling wheels are arranged on the longitudinal beams and move along the longitudinal beams, the rolling wheels are connected with supporting beams, the supporting beams are connected with a vortex generator, the motor drives driving wheels to rotate, driven wheels matched with the driving wheels are arranged on the supporting beams, a platform is arranged below the vortex generator, and the platform is arranged on a lifting device. According to the tornado testing device for the building wind engineering, the shape of vortex wind generated by the vortex generator is similar to the shape of the tornado, the wind speed and the wind direction of the vortex wind can be adjusted, the vertical distance between the vortex wind and a house model can be adjusted, the horizontal movement speed of the vortex wind can also be adjusted, and therefore the wind field of the tornados in different states and the effect of the wind load of the tornados on the building can be fully simulated.
Description
Technical field
The present invention relates to a kind of wind spout simulation test device, be specifically related to a kind of wind spout test unit for building wind engineering.
Background technology
Wind spout disaster is that ratio disaster more frequently occurs in east China monsoon active area.Wind spout is through out-of-date, and high wind speed and unexpected air pressure fall acting in conjunction in buildings, often cause a large amount of house collapses and casualties.Wind spout is a kind of high wind vortex that is accompanied by High Rotation Speed being produced by the strong convective motion of air under utmost point unsettled weather.The formation mechanism of wind spout and wind field structure complexity, the gentle pressure drop of wind speed is very large, and translational speed own is very large on wind field impact, therefore the wind field characteristic of wind spout does not have ripely according to following, and therefore simulates wind spout by test unit the wind force proofing design of buildings under the effect of research wind spout is necessary.
At present, single flow low-speed wind tunnel is full-fledged, and the wind load that is widely used in buildings under atmospheric boundary layer wind environment is studied, but, wind spout simulation test cannot be carried out at existing direct-action wind tunnel, have a few studies personnel to design easy vortex generating means both at home and abroad and simulate wind spout, but apparatus function is single, the Field Characteristics of wind spout that cannot Simulation of Complex.
Summary of the invention
The object of the invention is for above-mentioned the deficiencies in the prior art, a kind of wind spout test unit for building wind engineering is provided, can accurately simulate wind spout wind field and the wind action of wind spout to buildings.
To achieve these goals, the present invention realizes with following technical proposals: a kind of wind spout test unit for building wind engineering, comprise column and motor, and column top is provided with longeron, longeron is connected with crossbeam, longeron is provided with the roller moving along longeron, and roller is connected with brace summer, and brace summer is connected with vortex generator, motor drives driving wheel to rotate, brace summer is provided with the engaged wheel coordinating with driving wheel, and vortex generator below is provided with platform, and platform is arranged on jacking gear.
Described vortex generator comprises housing and air duct, is connected with axial flow blower on housing, and axial flow blower below is provided with honeycomb, forms wind groove between air duct and housing, in wind groove, is provided with fair water fin.
Described jacking gear is hydraulic cylinder or sleeve.
Between described crossbeam and column, be also connected with bearing diagonal.
Described platform is wooden test platform.
In the present invention, from vortex generator, whirlwind form is out similar to the form of wind spout, and the wind speed and direction of whirlwind is all adjustable, whirlwind can be adjusted apart from the vertical distance of building model, the speed that whirlwind moves horizontally also can be adjusted, and can fully simulate the wind field of wind spout under different conditions and the wind action to buildings.
Brief description of the drawings
To the accompanying drawing using be briefly described below, apparently, the accompanying drawing in the following describes is only examples more of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is that master of the present invention looks schematic diagram.
Fig. 2 is the schematic top plan view of Fig. 1.
Fig. 3 is that schematic diagram is looked on a left side of Fig. 1.
Fig. 4 is the structural representation of vortex generator.
Fig. 5 is A-A diagrammatic cross-section in Fig. 4.
Wherein: 1. column, 2. longeron, 3. roller, 4. brace summer, 5. vortex generator, 5-1. axial flow blower, 5-2. fair water fin, 5-3. air duct, 5-4. honeycomb, 5-5. housing, 5-6. wind groove, 6. crossbeam, 7. motor, 8. driving wheel, 9. platform, 10. jacking gear, 11. bearing diagonals, 12. AC converter, 13. silicon rectifier speed regulators, 14. chains.
Embodiment
Below in conjunction with the accompanying drawing in example of the present invention, the technical scheme in example of the present invention is clearly and completely described, obviously, described example is only the present invention's part example, instead of whole examples.Based on the example in the present invention, those of ordinary skill in the art, not making the every other example obtaining under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Fig. 1 ~ 5, a kind of wind spout test unit for building wind engineering, comprises column 1 and motor 7, column 1 top is provided with longeron 2, longeron 2 is connected with crossbeam 6, and longeron 2 is provided with the roller 3 moving along longeron, and roller 3 is connected with brace summer 4, brace summer 4 is connected with vortex generator 5, crossbeam 6 is provided with motor 7, and motor 7 drives driving wheel 8 to rotate, and brace summer 4 is provided with the engaged wheel coordinating with driving wheel, vortex generator 5 belows are provided with platform 9, and platform 9 is arranged on jacking gear 10.Wherein, described driving wheel and engaged wheel are preferably sprocket wheel, and driving wheel drives engaged wheel to rotate by chain 14, and described jacking gear 10 is hydraulic cylinder or sleeve.
The present invention can simulate the wind spout of different conditions, and its regulative mode is as follows:
1. rotate and drive driving wheel 8 to rotate by motor 7, when driving wheel 8 rotates, drive brace summer 4 to move along longeron 2 by engaged wheel, and then change vortex generator 5 position in the horizontal direction, motor 7 rotating speeds are different time, the translational speed difference of vortex generator 5, has namely adjusted the speed that moves horizontally of vortex generator 5.Wherein motor 7 is DC speed-regulating motor, can adjust the rotating speed of motor 7 by silicon rectifier speed regulator 13.
2. pass through to regulate the height of jacking gear 10, the vertical range that can regulate platform 9 and vortex generator 5 to export, and building model is arranged on platform 9, therefore can adjust the vertical range between building model and vortex generator.Meanwhile, because platform 9 is supported by four jacking gears 10, by regulating the height of different jacking gear 10, can also adjust the angle between building model and vortex generator, and then simulate the state of imperial whirlwind with different angle impact houses.
As preferably, described vortex generator 5 comprises housing 5-5 and air duct 5-3, is connected with axial flow blower 5-1 on housing 5-5, and axial flow blower 5-1 below is provided with honeycomb 5-4, forms wind groove 5-6 between air duct 5-3 and housing 5-5, fair water fin 5-2 in wind groove 5-6.Axial flow blower 5-1 is frequency conversion fan, after being connected, can change the travelling speed of axial flow blower 5-1 with AC converter 12, and then adjusts the wind speed size of simulation wind.
Vortex generator 5 principle of work are as follows: when axial flow blower 5-1 starts, the air of vortex generator lower end is drawn into top through honeycomb 5-4, this part gas is through after fair water fin 5-2, form the wind spout of emulation mode, downward through wind groove 5-6, blow on the building model of platform 9.By adjusting the rotating speed of axial flow blower 5-1, can adjust the wind-force intensity of wind spout.
As a step is preferred again, radially, these fair water fins 5-2 belongs to the tangent line of same circle to some fair water fin 5-2, can ensure to be modeled to wind spout through the wind of fair water fin 5-2, blows out with vorticity.By adjusting the angle of fair water fin 5-2, can regulate the tangential wind speed of wind spout.
In addition, in order to strengthen the stability of whole device, between crossbeam 6 and column 1, be also connected with bearing diagonal 11.
Described platform 9 is wooden test platform.
Claims (5)
1. the wind spout test unit for building wind engineering, comprise column (1) and motor (7), column (1) top is provided with longeron (2), longeron (2) is connected with crossbeam (6), it is characterized in that: longeron (2) is provided with the roller (3) moving along longeron, roller (3) is connected with brace summer (4), brace summer (4) is connected with vortex generator (5), motor (7) drives driving wheel (8) to rotate, brace summer (4) is provided with the engaged wheel coordinating with driving wheel, vortex generator (5) below is provided with platform (9), platform (9) is arranged on jacking gear (10).
2. the wind spout test unit for building wind engineering according to claim 1, it is characterized in that: described vortex generator (5) comprises housing (5-5) and air duct (5-3), on housing (5-5), be connected with axial flow blower (5-1), axial flow blower (5-1) below is provided with honeycomb (5-4), between air duct (5-3) and housing (5-5), form wind groove (5-6), in wind groove (5-6), be provided with fair water fin (5-2).
3. the wind spout test unit for building wind engineering according to claim 1, is characterized in that: described jacking gear (10) is hydraulic cylinder or sleeve.
4. the wind spout test unit for building wind engineering according to claim 1, is characterized in that: between described crossbeam (6) and column (1), be also connected with bearing diagonal (11).
5. according to the wind spout test unit for building wind engineering one of claim 1 ~ 4 Suo Shu, it is characterized in that: described platform (9) is wooden test platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410173728.4A CN103913287B (en) | 2014-04-28 | 2014-04-28 | For the wind spout test unit of building wind engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410173728.4A CN103913287B (en) | 2014-04-28 | 2014-04-28 | For the wind spout test unit of building wind engineering |
Publications (2)
| Publication Number | Publication Date |
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| CN103913287A true CN103913287A (en) | 2014-07-09 |
| CN103913287B CN103913287B (en) | 2016-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201410173728.4A Expired - Fee Related CN103913287B (en) | 2014-04-28 | 2014-04-28 | For the wind spout test unit of building wind engineering |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107702882A (en) * | 2017-11-27 | 2018-02-16 | 广东电网有限责任公司电力科学研究院 | A kind of experimental rig for simulating cyclone |
| CN107782522A (en) * | 2017-09-08 | 2018-03-09 | 合肥工业大学 | A kind of more swirl ratio equipment for simulating tornado |
| CN107860547A (en) * | 2017-11-08 | 2018-03-30 | 重庆交通大学 | A kind of integrated environment wind tunnel simulation device |
| CN110006624A (en) * | 2019-05-23 | 2019-07-12 | 重庆大学 | The physical simulating method that Background wind is coupled with mobile cyclone |
| CN110006622A (en) * | 2019-05-23 | 2019-07-12 | 重庆大学 | The physical simulating method and device that wave is coupled with mobile cyclone |
| CN110017964A (en) * | 2019-05-23 | 2019-07-16 | 重庆大学 | Consider the wave of Background wind and the physical simulating method of mobile cyclone coupling |
| CN110044572A (en) * | 2019-05-23 | 2019-07-23 | 重庆大学 | Tornado simulator horizontally moving device |
| CN110044580A (en) * | 2019-05-23 | 2019-07-23 | 重庆大学 | The physical simulating method and device that wave is coupled with mobile downburst |
| CN111238758A (en) * | 2020-03-06 | 2020-06-05 | 东南大学 | Bidirectional movement tornado simulator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107782522A (en) * | 2017-09-08 | 2018-03-09 | 合肥工业大学 | A kind of more swirl ratio equipment for simulating tornado |
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| CN107860547A (en) * | 2017-11-08 | 2018-03-30 | 重庆交通大学 | A kind of integrated environment wind tunnel simulation device |
| CN107702882A (en) * | 2017-11-27 | 2018-02-16 | 广东电网有限责任公司电力科学研究院 | A kind of experimental rig for simulating cyclone |
| CN107702882B (en) * | 2017-11-27 | 2023-05-12 | 广东电网有限责任公司电力科学研究院 | Test device for simulating tornado |
| CN110044572A (en) * | 2019-05-23 | 2019-07-23 | 重庆大学 | Tornado simulator horizontally moving device |
| CN110017964A (en) * | 2019-05-23 | 2019-07-16 | 重庆大学 | Consider the wave of Background wind and the physical simulating method of mobile cyclone coupling |
| CN110044580A (en) * | 2019-05-23 | 2019-07-23 | 重庆大学 | The physical simulating method and device that wave is coupled with mobile downburst |
| CN110006622A (en) * | 2019-05-23 | 2019-07-12 | 重庆大学 | The physical simulating method and device that wave is coupled with mobile cyclone |
| CN110006624B (en) * | 2019-05-23 | 2020-01-17 | 重庆大学 | Physical simulation method for coupling background wind and mobile tornado |
| CN110006624A (en) * | 2019-05-23 | 2019-07-12 | 重庆大学 | The physical simulating method that Background wind is coupled with mobile cyclone |
| CN110044572B (en) * | 2019-05-23 | 2023-11-17 | 重庆大学 | Horizontal moving device of tornado simulator |
| CN111238758A (en) * | 2020-03-06 | 2020-06-05 | 东南大学 | Bidirectional movement tornado simulator |
| CN111238758B (en) * | 2020-03-06 | 2021-10-12 | 东南大学 | Bidirectional movement tornado simulator |
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Granted publication date: 20160224 Termination date: 20170428 |