CN203414255U - Model supporting device for wind tunnel test of high-speed train - Google Patents

Model supporting device for wind tunnel test of high-speed train Download PDF

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Publication number
CN203414255U
CN203414255U CN201320455613.5U CN201320455613U CN203414255U CN 203414255 U CN203414255 U CN 203414255U CN 201320455613 U CN201320455613 U CN 201320455613U CN 203414255 U CN203414255 U CN 203414255U
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China
Prior art keywords
model
balance
supporting device
tunnel test
test
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Expired - Fee Related
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CN201320455613.5U
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Chinese (zh)
Inventor
单希壮
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Tongji University
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Tongji University
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Priority to CN201320455613.5U priority Critical patent/CN203414255U/en
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Publication of CN203414255U publication Critical patent/CN203414255U/en
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  • Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)

Abstract

The utility model relates to a model supporting device for a wind tunnel test of a high-speed train. The model supporting device is arranged on a steel rail for test. The model supporting device comprises 4-8 model support pillars, a balance installation platform and a balance. The model support pillars are uniformly arranged on the steel rail along the model vehicle wheel front and back connection line direction. The balance installation platform is fixedly arranged on the model support pillars. The balance is arranged on the balance installation platform. Compared with the prior art, the original large-diameter single-point support is changed into small-diameter multi-point support in the model supporting device, and the small-diameter multi-point model support pillars are distributed on the vehicle wheel front and back connection line, so that the supporting device is arranged in a wake area of vehicle wheels, a belly major flow area is spared, and the realness of belly flow is kept to the fullest; and since the single-point support is changed to be the multi-point support, the stability of the model in a wind field is greatly improved, and the accuracy and reliability of test data are guaranteed better.

Description

A kind of bullet train wind-tunnel test model bracing or strutting arrangement
Technical field
The utility model relates to a kind of wind tunnel test servicing unit, especially relates to a kind of bullet train wind-tunnel test model bracing or strutting arrangement.
Background technology
Rail vehicles, particularly bullet train, be in operation and be subject to the relative mobilization of air, produce resistance, rolling stock air pressure and air-flow around also changing, and particularly, when train is started (meeting) by tunnel is relative with train, this airflow function can be more obvious.For this reason, must carry out the research of the aerodynamics of train, the Main Means of research is to adopt wind tunnel test.Scale model is placed on the test platform of test section, measures train windage resistance, train around gas field and flow field etc. during test.
When bullet train carries out wind tunnel model test, model need to be supported on force balance, rather than with wheel supporting in orbit.The mounting system that supports balance must be when meeting stable support whole system, and stream field disturbs accomplishes minimum.The supporting way of conventional bullet train wind-tunnel test model is that the cylinder of 60-80mm diameter is erected on floor now, with this cylinder, is supporting a platform, is mounted with the balance that dynamometry is used above platform, places model above balance.When model is in wind field during stressed changing, balance will be measured its suffered power.Because this cylinder yardstick is excessive and be positioned at model center, seriously stopped up train belly and flowed, make flow field simulation untrue.Because this cylinder is single-point support, model length, 3 meters of left and right, is seriously shaken when model is subject to aerodynamic loading, and test figure is had a strong impact on.
Utility model content
The purpose of this utility model be exactly in order to overcome the defect that above-mentioned prior art exists, provide a kind of simple in structure, easily manufactured, stability is high, stream field disturbs few bullet train wind-tunnel test model bracing or strutting arrangement.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of bullet train wind-tunnel test model bracing or strutting arrangement, be located on test steels rail, this device comprises model pole, balance mounting platform and balance, described model pole is provided with 4~8 altogether, along model wheel front and back line direction, be distributed on rail, it is upper that described balance mounting platform is fixed on model pole, and described balance is located on balance mounting platform.
Preferably 6 or 8 of the quantity of described model pole.
The diameter of described model pole is not more than the width of model wheel.
Within described balance mounting platform is positioned at model external envelope face.
The situation that stressing conditions reaction model by balance is affected by wind-tunnel.
Compared with prior art, the utlity model has following advantage and beneficial effect:
(1) simple in structure, easily manufactured.
(2) major diameter single-point is supported and becomes minor diameter multi-point support, and be distributed on the connecting line of wheel front and back.This,, by making bracing or strutting arrangement be positioned at the tail district of wheel, has got out of the way the main flow regimes of belly, has kept to greatest extent the mobile authenticity of belly.
(3) owing to changing single-point support, be that Distributed Multi supports, the stability of model in wind field is greatly improved, and has more guaranteed the accurate reliability of test figure.
Accompanying drawing explanation
Fig. 1 is main TV structure schematic diagram of the present utility model;
Fig. 2 is side-looking structural representation of the present utility model.
In figure: 1 is balance, 2 is balance mounting platform, and 3 is model pole, and 4 is rail.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
Embodiment
A kind of bullet train wind-tunnel test model bracing or strutting arrangement, as shown in Figure 1 and Figure 2, be located on test steels rail 4, this device comprises model pole 3, balance mounting platform 2 and balance 1, model pole 3 is provided with 4~8 altogether, along model wheel front and back line direction, be distributed on rail 4, balance mounting platform 2 is fixed on model pole 3, and balance 1 is located on balance mounting platform 2.Wherein, the quantity of model pole 3 is preferably 6 or 8.The diameter of model pole 3 is less than or equal to the width of model wheel.Within balance mounting platform 2 is positioned at model external envelope face.
Stressing conditions by balance 1 reflects the situation that model is affected by wind-tunnel.
In the present embodiment, major diameter single-point is supported and becomes minor diameter multi-point support, and be distributed on the connecting line of wheel front and back.This,, by making bracing or strutting arrangement be positioned at the tail district of wheel, has got out of the way the main flow regimes of belly, has kept to greatest extent the mobile authenticity of belly.Owing to changing single-point support, be that Distributed Multi supports, the stability of model in wind field is greatly improved, and has more guaranteed the accurate reliability of test figure.

Claims (4)

1. a bullet train wind-tunnel test model bracing or strutting arrangement, be located on test steels rail, it is characterized in that, this device comprises model pole, balance mounting platform and balance, described model pole is provided with 4~8 altogether, along model wheel front and back line direction, be distributed on rail, it is upper that described balance mounting platform is fixed on model pole, and described balance is located on balance mounting platform.
2. a kind of bullet train wind-tunnel test model bracing or strutting arrangement according to claim 1, is characterized in that preferably 6 or 8 of the quantity of described model pole.
3. a kind of bullet train wind-tunnel test model bracing or strutting arrangement according to claim 1, is characterized in that, the diameter of described model pole is not more than the width of model wheel.
4. a kind of bullet train wind-tunnel test model bracing or strutting arrangement according to claim 1, is characterized in that, within described balance mounting platform is positioned at model external envelope face.
CN201320455613.5U 2013-07-29 2013-07-29 Model supporting device for wind tunnel test of high-speed train Expired - Fee Related CN203414255U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320455613.5U CN203414255U (en) 2013-07-29 2013-07-29 Model supporting device for wind tunnel test of high-speed train

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320455613.5U CN203414255U (en) 2013-07-29 2013-07-29 Model supporting device for wind tunnel test of high-speed train

Publications (1)

Publication Number Publication Date
CN203414255U true CN203414255U (en) 2014-01-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320455613.5U Expired - Fee Related CN203414255U (en) 2013-07-29 2013-07-29 Model supporting device for wind tunnel test of high-speed train

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CN (1) CN203414255U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108414183A (en) * 2018-03-07 2018-08-17 中车长春轨道客车股份有限公司 A kind of bullet train wind-tunnel testing standard model roadbed
CN108663189A (en) * 2018-06-13 2018-10-16 西南交通大学 Running train model balance mounting device in a kind of adjustable wind tunnel test

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108414183A (en) * 2018-03-07 2018-08-17 中车长春轨道客车股份有限公司 A kind of bullet train wind-tunnel testing standard model roadbed
CN108663189A (en) * 2018-06-13 2018-10-16 西南交通大学 Running train model balance mounting device in a kind of adjustable wind tunnel test
CN108663189B (en) * 2018-06-13 2019-03-26 西南交通大学 Running train model balance mounting device in a kind of adjustable wind tunnel test

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140129

Termination date: 20160729