CN113432828A - Air bridge device based on annular balance - Google Patents
Air bridge device based on annular balance Download PDFInfo
- Publication number
- CN113432828A CN113432828A CN202110504651.4A CN202110504651A CN113432828A CN 113432828 A CN113432828 A CN 113432828A CN 202110504651 A CN202110504651 A CN 202110504651A CN 113432828 A CN113432828 A CN 113432828A
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- sleeve
- flange
- balance
- air bridge
- outer sleeve
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- 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
- G01M9/062—Wind tunnel balances; Holding devices combined with measuring arrangements
-
- 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
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- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention provides an air bridge device based on an annular balance, which comprises an inner sleeve, a middle sleeve, an outer sleeve, a fixed flange, a tensioning sleeve and a sealing flange, wherein the outer wall of one end of the inner sleeve is fixedly connected with an inner ring of the fixed flange through the tensioning sleeve, the outer edge of the fixed flange is fixed at one end of the annular balance, the sealing flange is sleeved on the outer wall of the inner sleeve and fixedly connects and seals one end of the middle sleeve and one end of the outer sleeve, four nozzles are fixedly connected to the middle part of the inner sleeve in the circumferential direction, each nozzle penetrates through the side wall of the middle sleeve to communicate the inner sleeve with the interior of the outer sleeve, the other end of the middle sleeve is a closed end, the other end of the annular balance is fixedly connected with the other end of the outer sleeve, and the other end of the outer sleeve is an air outlet end. The invention effectively improves the quality of the dynamic simulation low-speed wind tunnel test data, can eliminate the interference quantity generated by the high-pressure gas flowing through the balance, can linearly correct the interference quantity, and has the advantages of compact structure, simple and convenient installation and convenient use.
Description
Technical Field
The invention belongs to the field of wind tunnel tests of aircrafts, and particularly relates to an air bridge device based on an annular balance.
Background
At present, the engine/body integrated optimization design and the aircraft performance evaluation mainly depend on a dynamic simulation wind tunnel test with a turbofan Simulator (TPS for short), so that the aerodynamic effect of a turbofan engine propulsion system is accurately simulated and the aerodynamic force is accurately measured. Different from a real engine, in a TPS power simulation wind tunnel test, turbine high-pressure driving gas of the TPS needs to be introduced from the outside, and in order to drive an engine simulation device, a special pipeline needs to be adopted to transmit high-pressure air. The problem that must be solved by the dynamic simulation technology is that the pipeline can deliver high-pressure air, and the balance of the measuring device is expected to measure only the resultant force of the aerodynamic force outside the model and the thrust of the TPS nacelle. Therefore, the high-pressure air is required to have small and stable influence on the balance force measurement, and can overcome the internal force and temperature effect of the high-pressure air. How to reduce and deduct the interference of the high-pressure gas supply system on the force measurement result of the model balance is a key technical problem to be solved urgently. The technical approach to solve this critical problem is to disturb the device on the high pressure gas supply line.
Disclosure of Invention
Based on the defects, the invention aims to provide the air bridge device based on the annular balance, which is positioned in the annular balance and plays a role in eliminating the interference generated after the high-pressure gas passes through the model in the power simulation test of the airplane model.
The technical scheme of the invention is as follows: the utility model provides an air bridge device based on annular balance, includes inner skleeve, well sleeve, outer sleeve, mounting flange, tight cover and sealing flange rise, the outer wall of the one end of inner skleeve inner circle fixed connection through tight cover and mounting flange rise, mounting flange's outer edge is fixed in the one end of annular balance, sealing flange overlaps on the outer wall of inner skleeve, sealing flange is with the one end fixed connection and the sealing of well telescopic one end and outer sleeve, four nozzles of inner skleeve middle part circumference fixedly connected with, each nozzle passes well telescopic lateral wall and communicates with each other inner skleeve and outer sleeve are inside, well telescopic other one end is the blind end, annular balance's the other one end fixed connection with the outer sleeve, the other one end of outer sleeve is the end of giving vent to anger.
The invention also has the following technical characteristics:
1. the corrugated pipes are symmetrically sleeved on the outer wall of the inner sleeve and two sides of the four nozzles respectively.
2. An adjusting plate is installed on one side of the closed end of the middle sleeve, and the adjusting plate is fixedly connected with one end of the corrugated pipe on one side.
3. The other end of the middle sleeve is provided with a conical cap.
4. The air inlet transition head is installed between the inner sleeve and the fixing flange, the outer edge of the air inlet transition head is clamped with the inner edge of the fixing flange, and the air inlet transition head is connected with one end of the inner sleeve in a sealing mode.
5. And a sealing ring is sleeved between the inner sleeve and the fixed flange, a sealing ring is sleeved between the middle sleeve and the sealing flange, and a sealing ring is sleeved between the middle sleeve and the outer sleeve.
6. And the outer surface of the outer sleeve is subjected to enamel treatment.
The invention has the advantages and beneficial effects that: the invention effectively improves the quality of the data of the dynamic simulation low-speed wind tunnel test, can eliminate the interference quantity generated by the high-pressure gas flowing through the balance, can linearly correct the interference quantity, has the advantages of compact structure, simple and convenient installation and convenient use, and is suitable for being widely popularized on the dynamic equipment simulation wind tunnel test. The test device can be applied to TPS power simulation, jet nacelle power simulation, jet flow simulation, air motor driven propeller simulation and other tests, and can also be popularized and applied to the field of engine and spray pipe test.
Drawings
FIG. 1 is a cross-sectional view of the structure of the present invention; the device comprises an air inlet transition head 1, an air inlet transition head 2, a fixed flange 3, a tensioning sleeve 4, a sealing ring 5, a bolt 6, a sealing flange 7, a middle sleeve 8, an outer sleeve 9, a nozzle 10, an inner sleeve 11, a corrugated pipe 12, an adjusting plate 13 and a cone cap.
The invention is further illustrated by way of example in the accompanying drawings of the specification:
example 1
The utility model provides an air bridge device based on annular balance, includes inner skleeve 10, well sleeve 7, outer sleeve 8, mounting flange 2, rises and tightly overlaps 3 and sealing flange 6, the outer wall of the one end of inner skleeve 10 through the inner circle fixed connection of tight cover 3 with mounting flange 2 that rises, the outer edge of mounting flange 10 is fixed in the one end of annular balance, sealing flange 6 overlaps on the outer wall of inner skleeve 10, sealing flange 6 passes through bolt 5 fixed connection and sealing with the one end of well sleeve 7 and the one end of outer sleeve 8, inner skleeve 10 middle part circumference fixedly connected with four nozzles 9, every nozzle 9 passes the lateral wall of well sleeve 7 and communicates with each other with inner skleeve 10 and outer sleeve 9 inside, the other end of well sleeve 7 is the blind end, the other end fixed connection of the other end of annular balance and the outer sleeve 8, the other end of outer sleeve 8 is the end of giving vent to anger. Corrugated pipes 11 are symmetrically sleeved on the outer wall of the inner sleeve 10 and two sides of the four nozzles 9. An adjusting plate 12 is arranged on one side of the closed end of the middle sleeve 7, and the adjusting plate 12 is fixedly connected with one end of the corrugated pipe on one side. The other end of the middle sleeve 7 is provided with a conical cap 13. Inner skleeve 10 and mounting flange 2 between install and admit air and cross crossover sub 1, the outer edge that admits air and mounting flange 2 interior along the joint, the one end sealing connection who admits air and cross crossover sub 1 and inner skleeve 10, high-pressure gas is by transition joining in inner nozzle, flows to the urceolus end of giving vent to anger by the cavity between well section of thick bamboo and the urceolus again, admit air and cross the crossover sub and play gaseous water conservancy diversion effect. A sealing ring is sleeved between the inner sleeve 10 and the fixed flange 2, a sealing ring 4 is sleeved between the middle sleeve 7 and the sealing flange 6, and a sealing ring is sleeved between the middle sleeve 7 and the outer sleeve. The outer surface of the outer sleeve is subjected to enamel treatment to isolate heat transfer generated by gas flow work, so that the balance is prevented from changing due to temperature change, and the outer sleeve plays a role of being fixed at the other end of the annular balance. 4 nozzles are arranged on the inner sleeve in the circumferential direction, the inner sleeve plays the roles of a flow channel and a fixed nozzle, and the nozzles are used for changing the direction of the airflow so as to change the direction of the airflow acting force. The corrugated pipes are symmetrically arranged on two sides of the nozzle respectively to play a role of eliminating disturbance by a spring. The air bridge power not only finishes the conveying of high-pressure air, but also has small and stable influence on the balance force measurement, and can overcome the internal force and temperature effect of the high-pressure air.
Claims (7)
1. The utility model provides an air bridge device based on annular balance, includes inner skleeve (10), well sleeve (7), outer sleeve (8), mounting flange (2), rises and tightly overlaps (3) and sealing flange (6), its characterized in that: the outer wall of the one end of inner skleeve (10) through rising the inner circle fixed connection of tight cover (3) and fixed flange (2), the outer edge of fixed flange (10) is fixed in the one end of annular balance, sealed flange (6) cover is on the outer wall of inner skleeve (10), sealed flange (6) are with the one end fixed connection and the sealed of one end of well sleeve (7) and outer sleeve (8), inner skleeve (10) middle part circumference fixedly connected with four nozzles (9), every nozzle (9) pass the lateral wall of well sleeve (7) with inner skleeve (10) and outer sleeve (9) inside communicate with each other, the other end of well sleeve (7) is the blind end, the other end of annular balance and the other end fixed connection of outer sleeve (8), the other end of outer sleeve (8) is for giving vent to anger the end.
2. The air bridge device based on the ring balance as claimed in claim 1, wherein: corrugated pipes (11) are respectively and symmetrically sleeved on the outer wall of the inner sleeve (10) and two sides of the four nozzles (9).
3. The air bridge device based on the ring balance as claimed in claim 2, wherein: an adjusting plate (12) is installed on one side of the closed end of the middle sleeve (7), and the adjusting plate (12) is fixedly connected with one end of the corrugated pipe on one side.
4. The air bridge apparatus based on a ring balance according to claim 1 or 2, wherein: the other end of the middle sleeve (7) is provided with a conical cap (13).
5. The air bridge apparatus based on a ring balance according to claim 1 or 2, wherein: inner skleeve (10) and mounting flange (2) between install and admit air transition head (1), the outer edge of transition head (1) of admitting air and mounting flange (2) interior along the joint, the one end sealing connection of transition head (1) and inner skleeve (10) of admitting air.
6. The air bridge apparatus based on a ring balance according to claim 1 or 2, wherein: a sealing ring is sleeved between the inner sleeve (10) and the fixed flange (2), a sealing ring is sleeved between the middle sleeve (7) and the sealing flange (6), and a sealing ring is sleeved between the middle sleeve (7) and the outer sleeve.
7. The air bridge apparatus based on a ring balance according to claim 1 or 2, wherein: the outer surface of the outer sleeve (8) is subjected to enamel treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110504651.4A CN113432828A (en) | 2021-05-10 | 2021-05-10 | Air bridge device based on annular balance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110504651.4A CN113432828A (en) | 2021-05-10 | 2021-05-10 | Air bridge device based on annular balance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113432828A true CN113432828A (en) | 2021-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110504651.4A Pending CN113432828A (en) | 2021-05-10 | 2021-05-10 | Air bridge device based on annular balance |
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| CN (1) | CN113432828A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116916636A (en) * | 2023-09-14 | 2023-10-20 | 中国空气动力研究与发展中心低速空气动力研究所 | Wind tunnel balance temperature control device |
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| CN106840591A (en) * | 2016-12-29 | 2017-06-13 | 中国航天空气动力技术研究院 | A kind of experimental rig of direct measurement jet flow thrust |
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2021
- 2021-05-10 CN CN202110504651.4A patent/CN113432828A/en active Pending
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| CN103048110A (en) * | 2012-12-14 | 2013-04-17 | 中国航空工业集团公司沈阳空气动力研究所 | Experimental facility for realizing thrust deflexion and experimental technique thereof |
| CN106840591A (en) * | 2016-12-29 | 2017-06-13 | 中国航天空气动力技术研究院 | A kind of experimental rig of direct measurement jet flow thrust |
| CN208297082U (en) * | 2018-03-06 | 2018-12-28 | 中国空气动力研究与发展中心高速空气动力研究所 | A kind of rear air bridges of jet pipe device for measuring force |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116916636A (en) * | 2023-09-14 | 2023-10-20 | 中国空气动力研究与发展中心低速空气动力研究所 | Wind tunnel balance temperature control device |
| CN116916636B (en) * | 2023-09-14 | 2023-11-17 | 中国空气动力研究与发展中心低速空气动力研究所 | Wind tunnel balance temperature control device |
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Application publication date: 20210924 |