CN113074174A - Shock tunnel test cabin and corrugated pipe connecting method - Google Patents
Shock tunnel test cabin and corrugated pipe connecting method Download PDFInfo
- Publication number
- CN113074174A CN113074174A CN202110428481.6A CN202110428481A CN113074174A CN 113074174 A CN113074174 A CN 113074174A CN 202110428481 A CN202110428481 A CN 202110428481A CN 113074174 A CN113074174 A CN 113074174A
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- corrugated pipe
- channel
- test chamber
- tunnel test
- upright post
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- 230000035939 shock Effects 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 claims description 33
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000037237 body shape Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 108010066278 cabin-4 Proteins 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B9/00—Connections of rods or tubular parts to flat surfaces at an angle
- F16B9/05—Connections of rods or tubular parts to flat surfaces at an angle by way of an intermediate member
- F16B9/054—Connections of rods or tubular parts to flat surfaces at an angle by way of an intermediate member the intermediate member being threaded
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B9/00—Connections of rods or tubular parts to flat surfaces at an angle
- F16B9/05—Connections of rods or tubular parts to flat surfaces at an angle by way of an intermediate member
- F16B9/056—Connections of rods or tubular parts to flat surfaces at an angle by way of an intermediate member the intermediate member extending through the flat surface; the rod or tubular part extending through the flat surface
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention discloses a shock tunnel test chamber and a corrugated pipe connecting method, wherein the shock tunnel test chamber comprises a test chamber body, a support upright post, a model platform and a corrugated pipe, wherein the model platform is arranged in a cavity of the test chamber body; the bottom of the test cabin body is provided with a through channel, and the support upright post can penetrate through the through channel; the corrugated pipe can penetrate through the through passage, so that the corrugated pipe can be sleeved outside the support upright; the top of the corrugated pipe can be hermetically fixed at the top of the through passage, and the bottom of the corrugated pipe and the bottom of the support upright post can be fixed on a foundation; the model platform can be fixed on the top of the support column. The corrugated pipe connecting method solves the technical problems that in the prior art, the corrugated pipe is complex in replacement steps, time and labor are consumed, the sealing performance of the replaced corrugated pipe is poor, and the service life of the corrugated pipe is short.
Description
Technical Field
The invention relates to the field of shock tunnels, in particular to a shock tunnel test chamber and a corrugated pipe connecting method.
Background
The shock tunnel is a pulse type device for generating high-speed test airflow through shock compression, and the specific structure can be seen in fig. 1. When the shock tunnel runs, the whole main tunnel body including the test chamber can generate violent vibration.
In order to avoid the influence of the vibration of the whole wind tunnel main pipe body on the model platform, a vibration-proof mode is adopted for the model platform in the prior art, and a common structure is shown in fig. 2, namely a support upright post of the model platform penetrates through a test bulkhead to be fixed on a foundation. Thus, the support columns have sufficient clearance from the test chamber wall to ensure that the test chamber is separated from the support columns. Therefore, during an experiment, the model on the model platform is not influenced by the vibration of the test cabin, and the accuracy of experimental data is ensured. In order to prevent the gap between the support column and the test cabin wall from influencing the sealing of the whole test cabin, a corrugated pipe is arranged outside the support column. The outer diameters of the upper flange and the lower flange of the existing corrugated pipe are the same, the lower flange is fixed with a foundation in the installation mode, and the upper flange is fixed with the lower surface of the wall of the test cabin, so that the airtightness of the whole test cabin and the outside is ensured. The bellows needs to be replaced periodically due to experimental wear.
The installation mode of the existing corrugated pipe causes that a new corrugated pipe cannot be completely installed, and the test cabin body is huge and cannot be easily removed. Therefore, the old corrugated pipe can be cut along the axial direction only, and the old corrugated pipe is taken down from the support upright post; then cutting a new corrugated pipe along the axial direction, and sleeving the corrugated pipe outside the support upright post; finally, welding the cut of the new corrugated pipe to fix the corrugated pipe. The replacement mode of the corrugated pipe has various defects, such as complicated replacement steps, time and labor consumption, more important influences on the sealing performance of the corrugated pipe, and easy larger gas leakage; in addition, the mechanical strength of the corrugated pipe is damaged, and the service life of the corrugated pipe is shortened.
Disclosure of Invention
The invention aims to provide a method for connecting a shock tunnel test chamber and a corrugated pipe, and aims to solve the technical problems that in the prior art, the corrugated pipe is complicated in replacement step, time and labor are consumed, the sealing performance of the corrugated pipe after replacement is poor, and the service life of the corrugated pipe is short.
In order to solve the technical problems, the invention specifically provides the following technical scheme:
a shock tunnel test chamber comprises a test chamber body, a support upright post, a model platform and a corrugated pipe, wherein the model platform is arranged in a cavity of the test chamber body; the bottom of the test cabin body is provided with a through channel, and the support upright post can penetrate through the through channel; the corrugated pipe can penetrate through the through passage, so that the corrugated pipe can be sleeved outside the support upright; the top of the corrugated pipe can be hermetically fixed at the top of the through passage, and the bottom of the corrugated pipe and the bottom of the support upright post can be fixed on a foundation; the model platform can be fixed on the top of the support column.
As a preferable technical scheme, the through channel is in a shape of a straight cylinder, an S-shaped cylinder or a trapezoidal boss.
As a preferable technical scheme, the trapezoid boss comprises a straight cylinder section and a circular table section which is narrow at the upper part and wide at the lower part, wherein the straight cylinder section and the circular table section are mutually communicated from bottom to top.
As a preferable technical solution, the outer diameter of the top of the bellows is larger than the inner diameter of the top of the through passage, and the outer diameter of the top of the bellows is smaller than the outer diameter of the top of the through passage; the outer diameter of the bottom of the bellows is smaller than the inner diameter of the top of the through passage.
As a preferable technical solution, an upper flange is disposed on the top of the corrugated pipe, and the upper flange is fixed to the top of the through passage.
As a preferred technical scheme, the upper flange is fixed on the top of the through channel through a fixing flange, and a sealing ring is arranged between the upper flange and the top of the through channel.
As a preferred technical scheme, a lower flange is arranged at the bottom of the corrugated pipe, and the lower flange is fixed on the foundation through foundation bolts.
As a preferable technical solution, at least two lug blocks extend outwards along the circumferential direction at the bottom of the corrugated pipe, and mounting holes are arranged on the lug blocks; and a fixing piece can be installed in the mounting hole so as to fix the bottom of the corrugated pipe on the foundation.
As a preferable technical scheme, the top of the corrugated pipe is provided with an external thread, and the top of the through channel is provided with an internal thread; the external and internal threads are mated to one another such that the top of the bellows can be threadably secured to the top of the through passage.
The invention also provides a corrugated pipe connecting method of the shock tunnel test chamber, wherein the bottom of the test chamber body of the shock tunnel test chamber is provided with a through channel, and the corrugated pipe connecting method comprises the steps of primary installation and replacement installation of the corrugated pipe;
the primary installation includes:
1) penetrating a support upright post through the through passage, and fixing the bottom of the support upright post on a foundation;
2) penetrating the corrugated pipe through the through passage so that the corrugated pipe is sleeved outside the support upright;
3) the top of the corrugated pipe can be hermetically fixed at the top of the through channel, and the bottom of the corrugated pipe is fixed on a foundation;
4) fixing a model platform on the top of the support upright;
the replacement installation includes:
1) separating the model platform from the support upright post, and then detaching the old corrugated pipe from the shock tunnel test cabin;
2) the new corrugated pipe penetrates through the through passage, so that the new corrugated pipe is sleeved outside the support upright;
3) sealing and fixing the top of the new corrugated pipe on the top of the through channel, and fixing the bottom of the new corrugated pipe on a foundation;
4) and fixing the model platform on the top of the support upright post.
The shock tunnel test cabin provided by the invention comprises three systems, wherein a model supporting system consisting of a foundation, a supporting upright post and a model platform ensures the supporting stability of the model platform; the cabin system consists of a test cabin and a through channel, so that various tests can be performed in the test cabin; the sealing system composed of the corrugated pipes further ensures the air tightness of the test cabin body. In the shock tunnel test chamber, the corrugated pipe connection method comprises two installation modes, wherein one mode is primary installation of the corrugated pipe, and the other mode is replacement installation of the corrugated pipe.
Through the above description about the initial installation and the replacement installation, it can be found that the test cabin with a larger body shape does not need to be moved in the initial installation or the replacement installation, and only the model platform with a smaller body shape needs to be moved. It can be known that the invention has the following advantages compared with the prior art:
1) the corrugated pipe does not need to be cut and welded in replacement and installation, so that the replacement steps of the corrugated pipe are simplified, and the time-saving and labor-saving effects are achieved.
2) When the corrugated pipe is replaced, the corrugated pipe does not need to be forcibly cut, so that the overall sealing performance of the test chamber is ensured, and the service life of the corrugated pipe is further ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
FIG. 1 is a schematic structural diagram of a preferred embodiment of a shock tunnel test chamber provided by the invention;
FIG. 2 is a schematic structural diagram of a shock tunnel provided in the present invention;
fig. 3 is a schematic structural diagram of a shock tunnel test cabin in the prior art provided by the invention.
The reference numerals in the drawings denote the following, respectively:
1. foundation 2, supporting column
3. Model platform 4 and test cabin
5. Mounting flange 6, through passage
7. Bellows 8, lower flange
9. Upper flange
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a shock tunnel test chamber, as shown in figure 1, the shock tunnel test chamber comprises a test chamber body 4, a support upright post 2, a model platform 3 and a corrugated pipe 7, wherein the model platform 3 is arranged in a chamber of the test chamber body 4; the bottom of the test cabin body 4 is provided with a through channel 6, and the support upright post 2 can penetrate through the through channel 6; the corrugated pipe 7 can penetrate through the through channel 6, so that the corrugated pipe 7 can be sleeved outside the support column 2; the top of the corrugated pipe 7 can be fixed on the top of the through channel 6 in a sealing manner, and the bottom of the corrugated pipe 7 and the bottom of the support column 2 can be fixed on the foundation 1 (wherein, the bottom of the corrugated pipe 7 is preferably fixed on the foundation 1 in a sealing manner); the model platform 3 can be fixed to the top of the support column 2.
In the present invention, the specific shape of the through channel 6 is not particularly limited as long as it is ensured that the support column 2 and the bellows 7 can pass through the through channel 6 while the bellows 7 can be fitted to the outside of the support column 2, but from the viewpoint of convenience of installation, it is preferable that the through channel 6 is a straight cylinder, an S-shaped cylinder, or a trapezoidal boss. But in order to avoid the shock of the test chamber causing the through channel 6 to collide against the bellows 7, it is more preferable that the through channel 6 is a trapezoidal boss.
In the above embodiment, in order to leave enough space in the through channel 6, it is preferable that the trapezoidal boss includes, from bottom to top, a straight cylinder section and a circular table section which is narrow at the top and wide at the bottom. The diameter of the bottom end of the trapezoid boss is larger than that of the upper end of the trapezoid boss, enough space is reserved, so that the trapezoid boss and the corrugated pipe 7 are prevented from being collided by violent vibration in the test chamber experiment, impact damage to the corrugated pipe 7 caused by the trapezoid boss is avoided, and the service life of the corrugated pipe 7 is prolonged. Meanwhile, the circular platform section also has the advantages of high stability and space saving.
In the present invention, the dimensions of the upper and lower ends of the bellows 7 may be selected within a wide range, but in order to ensure that the bellows 7 can smoothly pass through the through passage 6, it is also possible to facilitate the mounting of the bellows 7 on the through passage 6, preferably, the outer diameter of the top of the bellows 7 is larger than the inner diameter of the top of the through passage 6, and the outer diameter of the top of the bellows 7 is smaller than the outer diameter of the top of the through passage 6; the outer diameter of the bottom of the bellows 7 is smaller than the inner diameter of the top of the through-going passage 6. Thereby, the top of the bellows 7 can be blocked off from the top of the through passage 6, so that the bellows 7 is stably fixed to the through passage 6, thereby ensuring the airtightness of the test chamber 4.
In the present invention, the fixing method of the top of the corrugated tube 7 may be selected in a wide range, but in order to further facilitate the installation, it is preferable that the top of the corrugated tube 7 is provided with an upper flange 9, and the upper flange 9 is fixed to the top of the through passage 6. The upper flange 9 can improve the installation convenience between the corrugated pipe 7 and the through channel 6, and on the basis, the upper flange 9 can further improve the vacuum effect in the sealed test chamber; the test cabin 4 moves due to impact when the device operates, and due to the existence of the flexible corrugated pipe 7, the movement of the test cabin 4 can be prevented from being transmitted to the model platform 3, so that the accuracy of test data is ensured.
In the above embodiment, in order to further ensure the air tightness between the bellows 7 and the support column 2, it is preferable that the upper flange 9 is fixed to the top of the through channel 6 by a fixing flange 5, and a sealing ring is provided between the upper flange 9 and the top of the through channel 6. The fixing flange 5 and the sealing ring are matched for use, so that the installation is convenient on one hand, and the air tightness in the test cabin 4 is further ensured on the other hand.
On the basis, in order to further ensure the air tightness between the corrugated pipe 7 and the support column 2, preferably, the bottom of the corrugated pipe 7 is provided with a lower flange 8, and the lower flange 8 is fixed on the foundation 1 through anchor bolts. Rag bolt has the convenient effect of installation, and in addition, lower flange 8 links to each other with rag bolt, and upper flange 9 is not direct with bolted connection, but compresses tightly with mounting flange 5, and two sets of flanges just are independent each other about like this, also can avoid the defect of mutual interference during the installation.
Of course, the bottom of the corrugated tube 7 may be mounted in other ways besides the lower flange 8, and in order to simplify the structure, it is preferable that the bottom of the corrugated tube 7 has at least two lugs extending outwards along the circumferential direction, and the lugs are provided with mounting holes; fixing pieces can be installed in the installation holes so as to fix the bottom of the corrugated pipe 7 on the foundation 1. Compared with the lower flange 8, the structure of the lug block is simpler, the structure can be simplified, and the cost is reduced.
Similarly, the top of the corrugated pipe 7 may be mounted in other manners besides the mounting manner of the upper flange 9, and for convenience of mounting and improving air tightness, preferably, the top of the corrugated pipe 7 is provided with an external thread, and the top of the through passage 6 is provided with an internal thread; the external and internal threads are matched to each other so that the top of the bellows 7 can be screwed to the top of the through-channel 6. Therefore, the installation convenience can be greatly improved by adopting a threaded installation mode, and meanwhile, the air tightness of the test cabin body 4 can also be ensured.
The invention also provides a corrugated pipe connecting method of the shock tunnel test chamber, wherein the bottom of the test chamber body 4 of the shock tunnel test chamber is provided with a through channel 6, and the corrugated pipe connecting method comprises the first installation and replacement installation of the corrugated pipe.
Taking the preferred embodiment shown in fig. 1 as an example, the initial installation includes:
1) penetrating the support upright post 2 through the through channel 6, and fixing the bottom of the support upright post 2 on the foundation 1 through bolts;
2) the corrugated pipe 7 penetrates through the through channel 6, so that the corrugated pipe 7 is sleeved outside the support column 2;
3) fixing an upper flange 9 at the top of the corrugated pipe 7 to the top of the through channel 6 through a fixing flange 5, and fixing a lower flange 8 at the bottom of the corrugated pipe 7 to the foundation 1 through anchor bolts;
4) and fixing the model platform 3 on the top of the support upright 2 through bolts.
Taking the preferred embodiment shown in fig. 1 as an example, the replacement installation comprises:
1) detaching the model platform 3 from the top of the support column 2, and then loosening the fixing flange 5, so as to separate the upper flange 9 of the old corrugated pipe 7 from the top of the through channel 6, loosen the anchor bolts on the lower flange 8 of the old corrugated pipe 7, and draw the old corrugated pipe 7 out of the through channel 6;
2) passing a new bellows 7 through the through channel 6 such that the new bellows 7 is sleeved outside the support column 2;
3) fixing an upper flange 9 at the top of the new corrugated pipe 7 on the top of the through channel 6 through a fixing flange 5, and fixing a lower flange 8 at the bottom of the new corrugated pipe 7 on the foundation 1 through foundation bolts;
4) the model platform 3 is fixed on the top of the support upright 2.
Therefore, the test cabin body with a larger body shape does not need to be moved in the initial installation or the replacement installation, and only the model platform with a smaller body shape needs to be moved. Thereby achieving the effects of simplifying the replacement steps of the corrugated pipe and saving time and labor; the integral sealing performance of the test chamber is ensured, and the service life of the corrugated pipe is further ensured.
The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present application and such modifications and equivalents should also be considered to be within the scope of the present application.
Claims (10)
1. A shock tunnel test chamber is characterized in that: the shock tunnel test cabin comprises a test cabin body (4), a support upright post (2), a model platform (3) and a corrugated pipe (7), wherein the model platform (3) is arranged in a cavity of the test cabin body (4); the bottom of the test cabin body (4) is provided with a through channel (6), and the support upright post (2) can penetrate through the through channel (6); the corrugated pipe (7) can penetrate through the through channel (6) so that the corrugated pipe (7) can be sleeved outside the support column (2); the top of the corrugated pipe (7) can be hermetically fixed on the top of the through channel (6), and the bottom of the corrugated pipe (7) and the bottom of the support upright post (2) can be fixed on a foundation (1); the model platform (3) can be fixed on the top of the support upright post (2).
2. The shock tunnel test chamber according to claim 1, wherein the through channel (6) is a straight cylinder, an S-shaped cylinder or a trapezoidal boss.
3. The shock tunnel test chamber according to claim 2, wherein the trapezoidal boss comprises a straight cylinder section and a circular platform section which is narrow at the upper part and wide at the lower part which are mutually communicated from bottom to top.
4. The shock tunnel test chamber according to claim 1, wherein the external diameter of the top of the bellows (7) is larger than the internal diameter of the top of the through channel (6), and the external diameter of the top of the bellows (7) is smaller than the external diameter of the top of the through channel (6); the outer diameter of the bottom of the bellows (7) is smaller than the inner diameter of the top of the through-channel (6).
5. The shock tunnel test chamber according to any one of claims 1 to 4, wherein an upper flange (9) is arranged on the top of the corrugated pipe (7), and the upper flange (9) is fixed on the top of the through channel (6).
6. The shock tunnel test chamber according to claim 5, wherein the upper flange (9) is fixed to the top of the through channel (6) through a fixing flange (5), and a sealing ring is arranged between the upper flange (9) and the top of the through channel (6).
7. The shock tunnel test chamber according to any one of claims 1 to 4, wherein a lower flange (8) is arranged at the bottom of the corrugated pipe (7), and the lower flange (8) is fixed on the foundation (1) through anchor bolts.
8. The shock wind tunnel test chamber according to any one of claims 1 to 4, wherein the bottom of the corrugated pipe (7) extends outwards along the circumferential direction to form at least two lug blocks, and mounting holes are formed in the lug blocks; and a fixing piece can be arranged in the mounting hole so as to fix the bottom of the corrugated pipe (7) on the foundation (1).
9. The shock tunnel test chamber according to claim 1, wherein the top of the corrugated pipe (7) is provided with external threads, and the top of the through channel (6) is provided with internal threads; the external and internal threads are matched to each other so that the top of the bellows (7) can be screwed to the top of the through-channel (6).
10. The bellows connecting method of the shock tunnel test chamber according to any one of claims 1 to 9, wherein a through channel (6) is arranged at the bottom of the test chamber body (4) of the shock tunnel test chamber, and the bellows connecting method comprises initial installation and replacement installation of the bellows;
the primary installation includes:
1) penetrating the support upright post (2) through the through channel (6), and fixing the bottom of the support upright post (2) on the foundation (1);
2) the corrugated pipe (7) is penetrated through the through channel (6) so that the corrugated pipe (7) is sleeved outside the support upright (2);
3) the top of the corrugated pipe (7) is hermetically fixed at the top of the through channel (6), and the bottom of the corrugated pipe (7) is fixed on a foundation (1);
4) fixing a model platform (3) on the top of the support upright post (2);
the replacement installation includes:
1) separating the model platform (3) from the support upright post (2), and then detaching the old corrugated pipe (7) from the shock tunnel test chamber;
2) passing a new corrugated tube (7) through the through channel (6) so that the new corrugated tube (7) is sleeved outside the support column (2);
3) the top of the new corrugated pipe (7) can be fixed on the top of the through channel (6) in a sealing way, and the bottom of the new corrugated pipe (7) is fixed on the foundation (1);
4) and fixing the model platform (3) on the top of the support upright post (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110428481.6A CN113074174A (en) | 2021-04-21 | 2021-04-21 | Shock tunnel test cabin and corrugated pipe connecting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110428481.6A CN113074174A (en) | 2021-04-21 | 2021-04-21 | Shock tunnel test cabin and corrugated pipe connecting method |
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| Publication Number | Publication Date |
|---|---|
| CN113074174A true CN113074174A (en) | 2021-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110428481.6A Pending CN113074174A (en) | 2021-04-21 | 2021-04-21 | Shock tunnel test cabin and corrugated pipe connecting method |
Country Status (1)
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| CN (1) | CN113074174A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3878713A (en) * | 1973-11-16 | 1975-04-22 | Gen Dynamics Corp | Wind tunnel balance for supplying compressed fluid to the model |
| JPS5020248B1 (en) * | 1969-07-02 | 1975-07-14 | ||
| JPH05172691A (en) * | 1991-12-25 | 1993-07-09 | Ishikawajima Harima Heavy Ind Co Ltd | Shock wave wind tunnel tester |
| CN103630325A (en) * | 2013-12-12 | 2014-03-12 | 中国航天空气动力技术研究院 | Thermal deformation compensation device for high-temperature thermal-structure wind tunnel |
| JP2014181816A (en) * | 2013-03-18 | 2014-09-29 | Mineno Tekko Co Ltd | Structure for fastening and sealing pipe penetrating through partition |
| CN106153288A (en) * | 2016-08-24 | 2016-11-23 | 湖北三江航天红阳机电有限公司 | A kind of wind tunnel test attack angle mechanism and corrugated tube stagewise supporting mechanism thereof |
| CN111426447A (en) * | 2020-05-08 | 2020-07-17 | 湖北三江航天红阳机电有限公司 | Bottom supporting device for wind tunnel test section |
-
2021
- 2021-04-21 CN CN202110428481.6A patent/CN113074174A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5020248B1 (en) * | 1969-07-02 | 1975-07-14 | ||
| US3878713A (en) * | 1973-11-16 | 1975-04-22 | Gen Dynamics Corp | Wind tunnel balance for supplying compressed fluid to the model |
| JPH05172691A (en) * | 1991-12-25 | 1993-07-09 | Ishikawajima Harima Heavy Ind Co Ltd | Shock wave wind tunnel tester |
| JP2014181816A (en) * | 2013-03-18 | 2014-09-29 | Mineno Tekko Co Ltd | Structure for fastening and sealing pipe penetrating through partition |
| CN103630325A (en) * | 2013-12-12 | 2014-03-12 | 中国航天空气动力技术研究院 | Thermal deformation compensation device for high-temperature thermal-structure wind tunnel |
| CN106153288A (en) * | 2016-08-24 | 2016-11-23 | 湖北三江航天红阳机电有限公司 | A kind of wind tunnel test attack angle mechanism and corrugated tube stagewise supporting mechanism thereof |
| CN111426447A (en) * | 2020-05-08 | 2020-07-17 | 湖北三江航天红阳机电有限公司 | Bottom supporting device for wind tunnel test section |
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Application publication date: 20210706 |
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