KR20120068183A - Apparatus for assembling and disassembling wind tunnel balance and wind tunnel testing system - Google Patents
Apparatus for assembling and disassembling wind tunnel balance and wind tunnel testing system Download PDFInfo
- Publication number
- KR20120068183A KR20120068183A KR1020100129684A KR20100129684A KR20120068183A KR 20120068183 A KR20120068183 A KR 20120068183A KR 1020100129684 A KR1020100129684 A KR 1020100129684A KR 20100129684 A KR20100129684 A KR 20100129684A KR 20120068183 A KR20120068183 A KR 20120068183A
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- KR
- South Korea
- Prior art keywords
- wind tunnel
- scale
- tunnel scale
- coupling
- coupling hole
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/02—Wind tunnels
- G01M9/04—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/06—Measuring arrangements specially adapted for aerodynamic testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/08—Aerodynamic models
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
One embodiment of the present invention relates to a wind tunnel scale detachment mechanism and a wind tunnel test system, the wind tunnel scale can be firmly coupled to the fixed support, and the wind tunnel scale can be easily disassembled from the fixed support.
Description
The present invention relates to a wind tunnel scale detachment mechanism and a wind tunnel test system, and more particularly, to a wind tunnel scale detachment mechanism and a wind tunnel test system that can easily combine and disassemble the wind tunnel scale and the fixed support.
In general, wind tunnels are artificially fast and strong airflow devices that study the effects or air resistance of aircraft, other machines, or models of objects moving in the atmosphere.
In addition, wind tunnel testing is a test for examining the effect of wind on structures and the like, and is a test method that is particularly applied to the aircraft field. Specifically, the wind tunnel test is to fix the aircraft model and blow a constant wind to reproduce the state of the aircraft flying in the air. Therefore, the flight performance can be predicted by measuring the three-axis torque and moment acting on the aircraft prior to the virgin flight during the development of the aircraft, as well as finding and reflecting various aerodynamic phenomena unexpected at the time of design and reflecting it in the design process. can do.
In the wind tunnel test as described above, the wind tunnel test system is disposed inside the wind tunnel, and the wind tunnel test system includes a wind tunnel test model, a wind tunnel balance, and a fixed support.
The wind tunnel test model is a wind tunnel test object such as an aircraft produced in a model of about 1: 8 or 1:10, and the wind tunnel test is performed instead of the actual wind tunnel test object. The wind tunnel scale is disposed inside the wind tunnel test model to measure the force and moment generated in the wind tunnel test model during the wind tunnel test of the wind tunnel test model. The fixed support is a device which is coupled to the wind tunnel scale to fix and support the wind tunnel test model and the wind tunnel scale.
On the other hand, the wind tunnel scale and the fixed support must be firmly fixed so as not to shake arbitrarily during the wind tunnel test. If the wind tunnel scale is shaken or vibrated about the connection part with the fixed support during the wind tunnel test, an error occurs in various data of the wind tunnel test model obtained during the wind tunnel test of the wind tunnel test system, thereby causing the The design reliability of the wind tunnel test model is degraded.
Typically, the coupling portion of the wind tunnel scale and the fixed support may be formed in a tapered shape and firmly connected to each other by a press-fit method. However, when the wind tunnel scale and the fixed support is connected by a press-fit method, there is a problem that the disassembly of the wind tunnel scale and the fixed support is very difficult.
Embodiment of the present invention, it is possible to firmly combine the wind tunnel scale and the fixed support, and provides a wind tunnel scale mounting and detachment mechanism and wind tunnel test system that can easily disassemble the wind tunnel scale and the fixed support.
In addition, embodiments of the present invention provides a wind tunnel scale mounting and detachment mechanism and a wind tunnel test system capable of disassembling the wind tunnel scale with a small force from the fixed support.
In addition, an embodiment of the present invention provides a wind tunnel scale attachment and detachment mechanism and a wind tunnel test system that can improve the life by ensuring the durability of the structure that combines or disassembles the wind tunnel scale and the fixed support.
According to one embodiment of the present invention, in a wind tunnel scale detachment mechanism for fixing a wind tunnel scale used in a wind tunnel test to a fixed support, the wind tunnel scale detachment mechanism is provided on the fixed support and formed on the wind tunnel scale The wind tunnel scale coupling member having a coupling hole portion to be coupled to the fitting, and the wind tunnel scale opposite to the coupling hole portion where the taper portion is not coupled so that the wind tunnel scale can be pushed out of the coupling hole portion when the wind tunnel scale is disassembled. And a wind tunnel scale disassembling member inserted in the disassembly direction.
The coupling hole may be formed to penetrate the inside of the wind tunnel scale coupling member in a straight line shape. A first coupling part may be formed at one end of the coupling hole, and the first coupling part may be formed to be coupled to the tapered part, and a second coupling part may be inserted at the other end of the coupling hole part so that the wind tunnel scale disassembling member may be linearly moved along the coupling hole. Can be formed.
The first coupling portion may be formed in a tapered shape corresponding to the tapered portion. The second coupling part may have a female screw formed at a portion corresponding to the male screw so as to be movable with the male screw formed on the wind tunnel scale disassembling member.
A protrusion may protrude from the contact surface of any one of the first coupling portion and the tapered portion. An insertion groove into which the protrusion is inserted when the first coupling portion and the tapered portion are coupled may be formed on the contact surface of the other of the first coupling portion and the tapered portion.
The wind tunnel scale disassembling member may be formed to penetrate the through hole so that the connection line connected to the wind tunnel scale may be disposed therethrough.
The wind tunnel scale disassembling member is formed in a main body portion movably inserted into the opposite side of the coupling hole portion and in contact with an end portion of the tapered portion, and in another portion of the main body portion which is not inserted into the coupling hole portion. When the main body portion is inserted into the inside of the coupling hole may be provided with an operation unit for separating the wind tunnel scale from the coupling hole.
The main body portion may be formed in a cylindrical shape hollow inside. A male screw may be formed on an outer circumferential surface of the main body, and a female screw may be formed in the coupling hole to which the male screw of the main body may be movable.
The operation part may protrude in a hexagonal cross-sectional shape along a circumference of the outer circumferential surface of the main body part which is not inserted into the coupling hole.
According to another aspect of the present invention, a wind tunnel test model, a wind tunnel scale provided inside the wind tunnel test model to measure the force and moment generated in the wind tunnel test model during the wind tunnel test, one end of the wind tunnel scale in a press-in method Wind tunnel scale coupling member formed to be coupled through the coupling hole portion in a straight shape, a fixed support for supporting the wind tunnel scale and the wind tunnel test model and is provided with the wind tunnel scale coupling member, one end of the wind tunnel scale when disassembling the wind tunnel scale It provides a wind tunnel test system comprising a wind tunnel scale disassembly member is inserted into the opposite side of the coupling hole portion is not coupled to one end of the wind tunnel scale to push out of the coupling hole portion in a screw fastening manner.
The wind tunnel test model may be provided with a work hole for performing the fastening or disassembly of the wind tunnel scale disassembling member and the coupling hole.
The wind tunnel scale disassembling member may be provided with an operation section having a hexagonal cross-sectional shape to fasten or disassemble the coupling hole portion and the wind tunnel scale disassembling member.
The wind tunnel test may further include a control unit for receiving the detection value of the wind tunnel scale to analyze the wind tunnel test model. The through-hole part may be formed in the wind tunnel scale disassembling member so that a through line connecting the end portion of the wind tunnel scale and the control unit penetrates therein.
Wind tunnel scale mounting and detachment mechanism and wind tunnel test system according to an embodiment of the present invention, the wind tunnel scale and the fixed support can be firmly combined by the press-fit method, the wind tunnel scale and the fixed support easily by using the wind tunnel scale disassembly member Can be disassembled.
In addition, the wind tunnel scale detachment mechanism and the wind tunnel test system according to an embodiment of the present invention, since the disassembly direction of the wind tunnel scale and the direction of action of the wind tunnel scale disassembly member at the time of disassembling the wind tunnel scale and the wind tunnel scale coupling member, the wind tunnel The force of the disassembling member of the balance can be effectively transmitted to the wind tunnel balance. Therefore, one embodiment of the present invention can reduce the loss of the working force when disassembling the wind tunnel scale, it is possible to disassemble the wind tunnel scale with a small force.
In addition, the wind tunnel scale detachment mechanism and the wind tunnel test system according to an embodiment of the present invention, by using a tool such as a wrench to easily rotate the operation of the wind tunnel scale disassembly member, and thus the wind tunnel scale disassembly member wind tunnel scale The screw can be easily moved along the coupling hole of the coupling member.
In addition, the wind tunnel scale mounting and detachment mechanism and wind tunnel test system according to an embodiment of the present invention, the wind tunnel scale disassembly member may be formed in a size similar to the tapered end of the wind tunnel scale. Therefore, the durability of the wind tunnel scale disassembling member can be ensured, thereby improving the life of the wind tunnel scale disassembling member.
In addition, the wind tunnel scale detachment mechanism and the wind tunnel test system according to an embodiment of the present invention, through the through-hole portion of the wind tunnel scale disassembling member can easily connect the connecting line to the wind tunnel scale and the control unit, fastening or detaching the wind tunnel scale disassembly member Does not adversely affect the city line.
1 is a perspective view showing a wind tunnel test system according to an embodiment of the present invention.
FIG. 2 is a cutaway perspective view illustrating an internal structure of the wind tunnel test system illustrated in FIG. 1.
3 is an exploded perspective view showing the wind tunnel scale mounting mechanism shown in FIG.
4 is a perspective view showing a combined state of the wind tunnel scale mounting mechanism shown in FIG.
5 is a cross-sectional view showing the main part of the wind tunnel scale mounting and detachment mechanism shown in FIG. 4.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to or limited by the embodiments. Like reference symbols in the drawings denote like elements.
1 is a perspective view showing a wind
1 and 2, the wind
The wind
The
The
Wind tunnel scale attachment and
3 is an exploded perspective view showing the wind tunnel
3 to 6, the wind tunnel
Wind tunnel
On the other hand, at one end of the
Coupling
Here, the
In addition, the
However, when the tapered
Therefore, conventionally, the wind tunnel scale disassembling screw is inserted into the axial direction (A) and the inclined direction of the
In order to solve the above problems, in the present embodiment, the wind tunnel
3 to 6, the wind tunnel
The through-
For example, the wind tunnel
An end portion of the
As shown in FIG. 5, if the end portion of the tapered
On the other hand, as shown in FIG. 6, if the end portion of the tapered
The
For example, the
Looking at the assembly process and disassembly process of the wind tunnel scale mounting and
First, the assembly process of the wind tunnel
The wind tunnel
Then, the tapered
As such, when the
Next, the
As described above, the connecting
In the fastening operation of the wind tunnel
At this time, the
The coupling operation of the wind tunnel
On the other hand, in the wind tunnel
First, using the hexagon wrench, the
As described above, when the
Therefore, since the force of the wind tunnel
At this time, since the
Further, since the action force of the wind tunnel
When the press-fit engagement state of the
Disassembly of the wind tunnel
As described above, the embodiments of the present invention have been described by specific embodiments, such as specific components, and limited embodiments and drawings, but these are provided only to help a more general understanding of the present invention, and the present invention is limited to the above embodiments. Various modifications and variations can be made by those skilled in the art to which the present invention pertains. Therefore, the spirit of the present invention should not be limited to the described embodiments, and all of the equivalents and equivalents of the claims, as well as the following claims, will fall within the scope of the present invention. .
100: wind tunnel test system
110: wind tunnel test model
120: wind tunnel scales
122: tapered portion
130: fixed support
140:
150: wind tunnel scale desorption apparatus
160: wind tunnel balance member
162: coupling hole
170: wind tunnel disassembly member
172: through hole
Claims (12)
A wind tunnel scale coupling member provided on the fixed support and provided with a coupling hole portion such that a taper portion formed in the wind tunnel scale is fitted; And
A wind tunnel scale disassembling member inserted in the disassembly direction of the wind tunnel scale on the opposite side of the coupling hole portion where the taper portion is not coupled to push the wind tunnel scale out of the coupling hole portion when disassembling the wind tunnel scale;
Wind tunnel scale mounting mechanism comprising a.
The coupling hole is formed to penetrate the inside of the wind tunnel scale coupling member in a straight line shape.
One end of the coupling hole portion is formed with a first coupling portion to which the tapered portion is coupled, and the other end of the coupling hole portion is a wind tunnel having a second coupling portion in which the wind tunnel scale disassembly member is movably inserted along the coupling hole portion. Balance mounting device.
The first coupling portion is formed in a tapered shape corresponding to the tapered portion,
And the second coupling part of the wind tunnel scale mounting / detaching mechanism having a female thread formed at a portion corresponding to the male screw so as to be movable with the male screw formed on the wind tunnel scale disassembling member.
Protrusions protrude from the contact surface of any one of the first coupling portion and the tapered portion, and the protrusions are inserted into the contact surface of the first coupling portion and the tapered portion on the other contact surface of the first coupling portion and the tapered portion. Wind tunnel scale desorption mechanism is formed that is inserted groove.
The wind tunnel scale dismounting mechanism is formed in the wind tunnel scale disassembling member is formed through the through-hole portion so that the connection line connected to the wind tunnel scale through.
The wind tunnel scale disassembling member,
A main body part movably inserted into an opposite side of the coupling hole part and having an end portion contacting the tapered part; And
An operation unit which is formed at another portion of the main body portion which is not inserted into the coupling hole portion and inserts the main body portion into the coupling hole portion to disengage the wind tunnel scale from the coupling hole portion when the wind tunnel scale is disassembled;
Wind tunnel scale mounting mechanism having a.
The body portion is formed in a cylindrical shape hollow inside,
The outer circumferential surface of the main body portion is formed with a male screw, the coupling hole portion is a wind tunnel scale detachable mechanism having a female screw to which the male screw of the main body portion is movable.
And the control portion protrudes in a hexagonal cross-sectional shape along a circumference of the outer circumference of the main body portion which is not inserted into the coupling hole portion.
A wind tunnel scale provided inside the wind tunnel test model to measure the force and moment generated in the wind tunnel test model during the wind tunnel test;
A wind tunnel scale coupling member having a coupling hole portion through which one end of the wind tunnel scale is coupled by a press-fit method, through a straight line;
A fixed support provided with the wind tunnel scale coupling member and supporting the wind tunnel scale and the wind tunnel test model;
A wind tunnel scale disassembling member inserted into the opposite side of the coupling hole portion where the one end of the wind tunnel scale is not coupled to push the one end of the wind tunnel scale to the outside of the coupling hole when disassembling the wind tunnel scale;
Wind tunnel test system comprising a.
The wind tunnel test model is a wind tunnel test system is provided with a work hole for the fastening or disassembly of the wind tunnel scale disassembly member and the coupling hole.
The wind tunnel scale disassembling member is a wind tunnel test system formed with a hexagonal cross-sectional operation portion for fastening or disassembling the coupling hole portion and the wind tunnel scale disassembling member.
The control unit for receiving the detection value of the wind tunnel scale during the wind tunnel test to analyze the wind tunnel test model,
The wind tunnel scale disassembling member is formed through the through-hole portion so that the connecting line connecting the end of the wind tunnel scale and the controller penetrated therein.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR20100129684A KR101169173B1 (en) | 2010-12-17 | 2010-12-17 | Apparatus for assembling and disassembling wind tunnel balance and wind tunnel testing system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR20100129684A KR101169173B1 (en) | 2010-12-17 | 2010-12-17 | Apparatus for assembling and disassembling wind tunnel balance and wind tunnel testing system |
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Publication Number | Publication Date |
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KR20120068183A true KR20120068183A (en) | 2012-06-27 |
KR101169173B1 KR101169173B1 (en) | 2012-07-30 |
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KR20100129684A KR101169173B1 (en) | 2010-12-17 | 2010-12-17 | Apparatus for assembling and disassembling wind tunnel balance and wind tunnel testing system |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102879171A (en) * | 2012-10-12 | 2013-01-16 | 中国航空工业集团公司沈阳空气动力研究所 | Support system for entire pressure test in airplane |
CN103698101A (en) * | 2013-12-15 | 2014-04-02 | 中国航空工业集团公司哈尔滨空气动力研究所 | High-load and high-precision pneumatic force measurement device and measurement method |
CN112577698A (en) * | 2020-12-30 | 2021-03-30 | 中国航天空气动力技术研究院 | Dynamic tracking and adjusting device and method for load balance force of wind tunnel attack angle mechanism |
CN112798218A (en) * | 2021-04-12 | 2021-05-14 | 中国空气动力研究与发展中心低速空气动力研究所 | Model and rod balance connecting structure for wind tunnel test |
CN115165293A (en) * | 2022-06-30 | 2022-10-11 | 中国航天空气动力技术研究院 | Jaw type hood separation test device for hypersonic wind tunnel |
Families Citing this family (1)
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KR102088291B1 (en) | 2018-12-24 | 2020-03-12 | 국방과학연구소 | Axial force Axial force applicator for balance check using digital force gauge |
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2010
- 2010-12-17 KR KR20100129684A patent/KR101169173B1/en active IP Right Grant
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102879171A (en) * | 2012-10-12 | 2013-01-16 | 中国航空工业集团公司沈阳空气动力研究所 | Support system for entire pressure test in airplane |
CN103698101A (en) * | 2013-12-15 | 2014-04-02 | 中国航空工业集团公司哈尔滨空气动力研究所 | High-load and high-precision pneumatic force measurement device and measurement method |
CN103698101B (en) * | 2013-12-15 | 2017-06-06 | 中国航空工业集团公司哈尔滨空气动力研究所 | Big load high accurancy and precision aerodynamics force measurement device and measuring method |
CN112577698A (en) * | 2020-12-30 | 2021-03-30 | 中国航天空气动力技术研究院 | Dynamic tracking and adjusting device and method for load balance force of wind tunnel attack angle mechanism |
CN112577698B (en) * | 2020-12-30 | 2023-02-03 | 中国航天空气动力技术研究院 | Dynamic tracking and adjusting device and method for load balance force of wind tunnel attack angle mechanism |
CN112798218A (en) * | 2021-04-12 | 2021-05-14 | 中国空气动力研究与发展中心低速空气动力研究所 | Model and rod balance connecting structure for wind tunnel test |
CN115165293A (en) * | 2022-06-30 | 2022-10-11 | 中国航天空气动力技术研究院 | Jaw type hood separation test device for hypersonic wind tunnel |
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Publication number | Publication date |
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KR101169173B1 (en) | 2012-07-30 |
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