CN110595731B - Hypersonic wind tunnel parallel separation model relative position continuous adjusting device - Google Patents
Hypersonic wind tunnel parallel separation model relative position continuous adjusting device Download PDFInfo
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- CN110595731B CN110595731B CN201911062051.6A CN201911062051A CN110595731B CN 110595731 B CN110595731 B CN 110595731B CN 201911062051 A CN201911062051 A CN 201911062051A CN 110595731 B CN110595731 B CN 110595731B
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- 238000000926 separation method Methods 0.000 title claims abstract description 24
- 238000012360 testing method Methods 0.000 claims abstract description 56
- 210000001015 abdomen Anatomy 0.000 claims abstract description 12
- 230000003187 abdominal effect Effects 0.000 claims description 44
- 238000012545 processing Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000036544 posture Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000001612 separation test Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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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
- G01M9/08—Aerodynamic models
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
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- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention discloses a hypersonic wind tunnel parallel type separation model relative position continuous adjusting device. The model X-direction relative position adjusting device of the adjusting device is horizontally arranged, the front end of the adjusting device is fixedly connected with the tail end of the secondary test model, and the rear end of the adjusting device is fixedly connected with the tail support mechanism of the hypersonic wind tunnel; the model Y-direction relative position adjusting device is vertically arranged, the upper end of the model Y-direction relative position adjusting device is fixedly connected with a belly support interface below the primary test model, and the lower end of the model Y-direction relative position adjusting device is fixedly connected with a belly support mechanism of the hypersonic wind tunnel; the Y-direction locking and auxiliary adjusting device is vertically arranged and fixed on the lee surface of the model Y-direction relative position adjusting device to carry out Y-direction locking and auxiliary adjustment. The adjusting device is simple in structure, low in processing cost and easy to replace a test model state, reduces the labor intensity of field personnel, improves the test efficiency, avoids errors caused by processing and mounting errors, improves the repeatability precision, and can temporarily increase the test state in an adjusting range.
Description
Technical Field
The invention belongs to the technical field of hypersonic wind tunnel tests, and particularly relates to a hypersonic wind tunnel parallel type separation model relative position continuous adjusting device.
Background
At present, hypersonic wind tunnel models are complex in state and frequent in model posture change, and for parallel two-stage separation tests, a large number of relative X and relative Y position adjustment states can exist in any combination of a primary test model and a secondary test model. The conventional support mechanism of the hypersonic wind tunnel can only change the postures of the primary test model and the secondary test model at the same time, but cannot change the postures of the primary test model and the secondary test model respectively, and cannot adjust the relative positions of the primary test model and the secondary test model.
At present, pin holes at different positions are processed on a belly support plate of a primary test model and a tail support rod of a secondary test model to realize the adjustment of the relative positions of the primary test model and the secondary test model, but continuous adjustment cannot be realized. This method has the following disadvantages: firstly, because the number of the pin holes is numerous, and the internal space of the abdominal support plate or the tail support rod is limited, excessive pin holes can cause weakening of the support strength, local stress concentration and potential safety hazard. Secondly, once the positions of the pin holes are processed, the positions of the pin holes cannot be adjusted again, so that the number of the adjustable relative positions of the primary test model and the secondary test model is limited, and the method has no measure on the condition that the relative positions need to be increased temporarily in the test. Finally, the belly support plate of the primary test model and the tail support rod of the secondary test model are generally positioned at different positions of a conventional support mechanism of the hypersonic wind tunnel, the two positions are far apart, relative X and relative Y coordinates cannot be given according to original pictures due to machining accumulated errors, the original pictures cannot be obtained in some cases, accurate relative positions cannot be obtained in actual measurement, the positions of the positioning pin holes cannot be determined due to the fact that the accurate positions of the references cannot be found, the requirements of two-stage preset relative positions cannot be met if any given values are given, and therefore the relative position precision of the primary test model and the secondary test model is low.
In order to solve the problems, it is necessary to design a hypersonic wind tunnel parallel type separation model relative position continuous adjusting device.
Disclosure of Invention
The invention aims to solve the technical problem of providing a hypersonic wind tunnel parallel type separation model relative position continuous adjusting device.
The invention relates to a hypersonic wind tunnel parallel type separation model relative position continuous adjusting device, which is characterized in that: the adjusting device comprises a model X-direction relative position adjusting device, a model Y-direction relative position adjusting device and a Y-direction locking and auxiliary adjusting device;
The model X-direction relative position adjusting device is horizontally arranged and is used for continuously adjusting the horizontal position of the secondary test model, the front end of the model X-direction relative position adjusting device is fixedly connected with the tail end of the secondary test model, and the rear end of the model X-direction relative position adjusting device is fixedly connected with the tail support mechanism of the hypersonic wind tunnel;
the model Y-direction relative position adjusting device is vertically arranged and is used for continuously adjusting the vertical position of the primary test model, the upper end of the model Y-direction relative position adjusting device is fixedly connected with the abdomen support interface below the primary test model, and the lower end of the model Y-direction relative position adjusting device is fixedly connected with the abdomen support mechanism of the hypersonic wind tunnel;
The Y-direction locking and auxiliary adjusting device is vertically arranged and fixed on the lee surface of the model Y-direction relative position adjusting device and is used for locking and auxiliary adjusting the model Y-direction relative position adjusting device.
The X-direction relative position adjusting device comprises a front lock nut, a front section of a sliding support rod, a circumferential positioning flat key, an adjusting nut, a rear lock nut and a rear section of the sliding support rod; the front section of the sliding support rod is a round rod which is horizontally placed, the rear section of the sliding support rod is a round tube which is horizontally placed, the front section of the sliding support rod is in clearance fit with the rear section Kong Zhoujian of the sliding support rod, and the front section of the sliding support rod extends into the rear section of the sliding support rod from front to back;
the adjusting nut is sleeved on the front section of the sliding support rod and the rear section of the sliding support rod, the adjusting nut is fixed on the front section of the sliding support rod through a front locking nut, the adjusting nut is fixed on the rear section of the sliding support rod through a rear locking nut, and the front locking nut and the rear locking nut are horizontally adjusted and positioned; the circumferential positioning flat key is embedded in a key groove matched with the front section of the sliding support rod and the rear section of the sliding support rod, and circumferential positioning is carried out on the circumferential positioning flat key.
Further, the front end of the front lock nut is reverse taper angle on the windward side.
The Y-direction relative position adjusting device comprises a jacking screw, a lower abdominal support plate section and an upper abdominal support plate section; the lower abdominal support plate section and the upper abdominal support plate section are matched through a sliding groove, the upper abdominal support plate section is inserted into the lower abdominal support plate section from top to bottom, threaded holes are formed in the side face of the lower abdominal support plate section, and the relative positions of the lower abdominal support plate section and the upper abdominal support plate section are fixed in a friction locking mode by installing a jacking screw in the threaded holes.
Further, the cross section of the chute is square.
The Y-direction locking and auxiliary adjusting device comprises an adjusting screw, an adjusting and locking nut, a screw sliding clamping groove I and a screw sliding clamping groove II; the screw sliding clamping groove I is fixed on the leeward surface of the upper section of the abdominal support plate, the screw sliding clamping groove II is fixed on the leeward surface of the lower section of the abdominal support plate, the adjusting screw is an external thread screw, two ends of the adjusting screw are respectively inserted into the screw sliding clamping groove and the through holes of the screw sliding clamping groove, 4 adjusting and locking nuts are respectively positioned at the upper end and the lower end of the screw sliding clamping groove I and the upper end and the lower end of the screw sliding clamping groove II, and the adjusting and locking nuts are locked with the adjusting screw through threaded connection to adjust and fix the vertical relative positions of the lower section of the abdominal support plate and the upper section of the abdominal support plate.
The front end windward side back taper angle in the hypersonic wind tunnel parallel type separation model relative position continuous adjusting device reduces step angle interference.
The square chute section in the hypersonic wind tunnel parallel type separation model relative position continuous adjusting device can realize front, back, left and right direction positioning of the upper section of the abdominal support plate, and only the degree of freedom in the vertical direction is left.
The model X-direction relative position adjusting device in the hypersonic wind tunnel parallel type separation model relative position continuous adjusting device plays a role of a horizontal sliding support rod, can independently adjust the horizontal relative position of a secondary test model, and plays a role of horizontal adjustment and positioning. The model Y-direction relative position adjusting device plays a role in vertically sliding the support plate, the vertical direction relative position of the primary test model can be independently adjusted, and the adjusting screw and the adjusting and locking nut play a role in vertical adjustment and positioning. The hypersonic wind tunnel parallel type separation model relative position continuous adjusting device provided by the invention can be matched with a conventional supporting mechanism of a hypersonic wind tunnel to adjust the relative attack angles of a primary test model and a secondary test model, and finally, the continuous adjustment of the relative positions of the primary test model and the secondary test model is realized.
The hypersonic wind tunnel parallel type separation model relative position continuous adjusting device is simple in structure, low in processing cost and easy to replace a test model state, reduces labor intensity of field personnel, improves test efficiency, avoids errors caused by processing and installation errors, improves repeatability precision, and can temporarily increase the test state in an adjusting range.
Drawings
FIG. 1 is a schematic diagram of a hypersonic wind tunnel parallel separation model relative position continuous adjusting device;
FIG. 2 is a schematic diagram of a model X-direction relative position adjusting device in the hypersonic wind tunnel parallel type separation model relative position continuous adjusting device;
FIG. 3 is a schematic view of a model Y-direction relative position adjusting device in the hypersonic wind tunnel parallel type separation model relative position continuous adjusting device;
Fig. 4 is a schematic diagram of a Y-direction locking and auxiliary adjusting device in the hypersonic wind tunnel parallel type separation model relative position continuous adjusting device.
In the figure, 1, a model X-direction relative position adjusting device 2, a model Y-direction relative position adjusting device 3.Y and a locking and auxiliary adjusting device;
101. front lock nut 102, sliding support rod front section 103, circumferential positioning flat key 104, adjusting nut 105, rear lock nut 106, sliding support rod rear section;
201. the jacking screw 202 is a lower abdominal support plate section 203, an upper abdominal support plate section;
301. adjusting screw 302, adjusting and locking nut 303, screw sliding clamping groove I304 and screw sliding clamping groove II.
Detailed Description
The invention will be described in further detail with reference to the accompanying drawings and specific examples.
As shown in FIG. 1, the hypersonic wind tunnel parallel type separation model relative position continuous adjusting device comprises a model X-direction relative position adjusting device 1, a model Y-direction relative position adjusting device 2 and a Y-direction locking and auxiliary adjusting device 3;
The model X-direction relative position adjusting device 1 is horizontally arranged and is used for continuously adjusting the horizontal position of the secondary test model, the front end of the model X-direction relative position adjusting device 1 is fixedly connected with the tail end of the secondary test model, and the rear end of the model X-direction relative position adjusting device 1 is fixedly connected with the tail support mechanism of the hypersonic wind tunnel;
the model Y-direction relative position adjusting device 2 is vertically arranged and is used for continuously adjusting the vertical position of the primary test model, the upper end of the model Y-direction relative position adjusting device 2 is fixedly connected with the abdomen support interface below the primary test model, and the lower end of the model Y-direction relative position adjusting device 2 is fixedly connected with the abdomen support mechanism of the hypersonic wind tunnel;
The Y-direction locking and auxiliary adjusting device 3 is vertically arranged and fixed on the lee surface of the model Y-direction relative position adjusting device 2 and is used for locking and auxiliary adjusting the model Y-direction relative position adjusting device 2.
As shown in fig. 2, the X-direction relative position adjusting device 1 includes a front lock nut 101, a front section 102 of a sliding strut, a circumferential positioning flat key 103, an adjusting nut 104, a rear lock nut 105, and a rear section 106 of the sliding strut; the front section 102 of the sliding support rod is a round rod which is horizontally placed, the rear section 106 of the sliding support rod is a round tube which is horizontally placed, the front section 102 of the sliding support rod is in clearance fit with the rear section 106 Kong Zhoujian of the sliding support rod, and the front section 102 of the sliding support rod extends into the rear section 106 of the sliding support rod from front to back;
The adjusting nut 104 is sleeved on the front section 102 of the sliding support rod and the rear section 106 of the sliding support rod, the adjusting nut 104 is fixed on the front section 102 of the sliding support rod through the front locking nut 101, the adjusting nut 104 is fixed on the rear section 106 of the sliding support rod through the rear locking nut 105, and the front locking nut 101 and the rear locking nut 105 are horizontally adjusted and positioned; the circumferential positioning flat key 103 is embedded in a key groove matched with the sliding support rod front section 102 and the sliding support rod rear section 106, and the circumferential positioning flat key 103 performs circumferential positioning.
The front end of the front lock nut 101 has a back taper angle towards the windward side.
As shown in fig. 3, the Y-direction relative position adjusting device 2 includes a tightening screw 201, a lower abdominal support plate segment 202, and an upper abdominal support plate segment 203; the lower abdominal support plate section 202 and the upper abdominal support plate section 203 are matched through a sliding groove, the upper abdominal support plate section 203 is inserted into the lower abdominal support plate section 202 from top to bottom, threaded holes are formed in the side face of the lower abdominal support plate section 202, and the relative positions of the lower abdominal support plate section 202 and the upper abdominal support plate section 203 are fixed in a friction locking mode by installing a tightening screw 201 in the threaded holes.
The section of the chute is square.
As shown in fig. 4, the Y-direction locking and auxiliary adjusting device 3 includes an adjusting screw 301, an adjusting and locking nut 302, a screw sliding clamping groove i 303 and a screw sliding clamping groove ii 304; the screw sliding clamping groove I303 is fixed on the leeward surface of the upper abdominal support plate section 203, the screw sliding clamping groove II 304 is fixed on the leeward surface of the lower abdominal support plate section 202, the adjusting screw 301 is an external threaded screw, two ends of the adjusting screw 301 are respectively inserted into through holes of the screw sliding clamping groove 303 and the screw sliding clamping groove 304, 4 adjusting and locking nuts 302 are respectively positioned at the upper end and the lower end of the screw sliding clamping groove I303 and the upper end and the lower end of the screw sliding clamping groove II 304, the adjusting and locking nuts 302 are locked with the adjusting screw 301 through threaded connection, and the vertical relative positions of the lower abdominal support plate section 202 and the upper abdominal support plate section 203 are adjusted and fixed.
Example 1
The specific working procedure of this embodiment is as follows:
1. The rear end of the X-direction relative position adjusting device 1 is arranged on a tail support interface of a conventional support mechanism of a hypersonic wind tunnel, the tail end of the secondary test model is fixed at the front end of the X-direction relative position adjusting device 1, and the initial attack angle of the secondary test model is set to be 0 degrees.
2. The lower end of the model Y-direction relative position adjusting device 2 is arranged on the abdomen support interface of the conventional support mechanism of the hypersonic wind tunnel, the abdomen support interface below the primary test model is fixed at the upper end of the Y-direction relative position adjusting device 2, and the initial attack angle of the primary test model is set to be 0 degrees.
3. According to the preset test state, the front lock nut 101 and the rear lock nut 105 in the X-direction relative position adjusting device 1 are loosened, the adjusting nut 104 is rotated until the secondary test model reaches the required horizontal position, and the front lock nut 101 and the rear lock nut 105 are locked.
4. According to the preset test state, the jacking screw 201 in the Y-direction relative position adjusting device 2 is loosened, the 4 adjusting and locking nuts 302 in the Y-direction locking and auxiliary adjusting device 3 are loosened, the upper abdominal support plate section 203 is moved up and down until the primary test model reaches the required vertical position, and then the 4 adjusting and locking nuts 302 and the jacking screw 201 are sequentially locked.
5. The hypersonic wind tunnel develops a wind tunnel test according to a conventional wind tunnel test flow.
Claims (4)
1. The hypersonic wind tunnel parallel separation model relative position continuous adjusting device is characterized in that: the adjusting device comprises a model X-direction relative position adjusting device (1), a model Y-direction relative position adjusting device (2) and a Y-direction locking and auxiliary adjusting device (3);
The model X-direction relative position adjusting device (1) is horizontally arranged and is used for continuously adjusting the horizontal position of the secondary test model, the front end of the model X-direction relative position adjusting device (1) is fixedly connected with the tail end of the secondary test model, and the rear end of the model X-direction relative position adjusting device (1) is fixedly connected with the tail support mechanism of the hypersonic wind tunnel;
the model Y-direction relative position adjusting device (2) is vertically arranged and is used for continuously adjusting the vertical position of the primary test model, the upper end of the model Y-direction relative position adjusting device (2) is fixedly connected with the abdomen support interface below the primary test model, and the lower end of the model Y-direction relative position adjusting device (2) is fixedly connected with the abdomen support mechanism of the hypersonic wind tunnel;
The Y-direction locking and auxiliary adjusting device (3) is vertically arranged and fixed on the lee surface of the model Y-direction relative position adjusting device (2) and is used for locking and auxiliary adjusting the model Y-direction relative position adjusting device (2);
The X-direction relative position adjusting device (1) comprises a front lock nut (101), a front section (102) of a sliding support rod, a circumferential positioning flat key (103), an adjusting nut (104), a rear lock nut (105) and a rear section (106) of the sliding support rod; the sliding support rod front section (102) is a round rod which is horizontally placed, the sliding support rod rear section (106) is a round tube which is horizontally placed, the sliding support rod front section (102) is in clearance fit with the sliding support rod rear section (106) Kong Zhoujian, and the sliding support rod front section (102) stretches into the sliding support rod rear section (106) from front to back;
The adjusting nut (104) is sleeved on the front section (102) and the rear section (106) of the sliding support rod, the adjusting nut (104) is fixed on the front section (102) of the sliding support rod through the front locking nut (101), the adjusting nut (104) is fixed on the rear section (106) of the sliding support rod through the rear locking nut (105), and the front locking nut (101) and the rear locking nut (105) are horizontally adjusted and positioned; the circumferential positioning flat key (103) is embedded in a key groove matched with the front section (102) of the sliding support rod and the rear section (106) of the sliding support rod, and the circumferential positioning flat key (103) performs circumferential positioning;
The Y-direction relative position adjusting device (2) comprises a jacking screw (201), a lower abdominal support plate section (202) and an upper abdominal support plate section (203); the lower abdominal support plate section (202) and the upper abdominal support plate section (203) are matched through a sliding groove, the upper abdominal support plate section (203) is inserted into the lower abdominal support plate section (202) from top to bottom, threaded holes are formed in the side faces of the lower abdominal support plate section (202), and the relative positions of the lower abdominal support plate section (202) and the upper abdominal support plate section (203) are fixed in a friction locking mode by installing jacking screws (201) in the threaded holes.
2. The hypersonic wind tunnel parallel separation model relative position continuous adjusting device according to claim 1, wherein the hypersonic wind tunnel parallel separation model relative position continuous adjusting device is characterized in that: the front end of the front lock nut (101) is provided with a windward side back taper angle.
3. The hypersonic wind tunnel parallel separation model relative position continuous adjusting device according to claim 1, wherein the hypersonic wind tunnel parallel separation model relative position continuous adjusting device is characterized in that: the section of the chute is square.
4. The hypersonic wind tunnel parallel separation model relative position continuous adjusting device according to claim 1, wherein the hypersonic wind tunnel parallel separation model relative position continuous adjusting device is characterized in that: the Y-direction locking and auxiliary adjusting device (3) comprises an adjusting screw (301), an adjusting and locking nut (302), a screw sliding clamping groove I (303) and a screw sliding clamping groove II (304); the screw sliding clamping groove I (303) is fixed on the leeward surface of the upper section (203) of the abdominal support plate, the screw sliding clamping groove II (304) is fixed on the leeward surface of the lower section (202) of the abdominal support plate, the adjusting screw (301) is an external threaded screw, two ends of the adjusting screw (301) are respectively inserted into through holes of the screw sliding clamping groove I (303) and the screw sliding clamping groove II (304), 4 adjusting and locking nuts (302) are respectively positioned at the upper end and the lower end of the screw sliding clamping groove I (303) and the upper end and the lower end of the screw sliding clamping groove II (304), the adjusting and locking nuts (302) are locked with the adjusting screw (301) through threaded connection, and the vertical relative positions of the lower section (202) of the abdominal support plate and the upper section (203) of the abdominal support plate are adjusted and fixed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911062051.6A CN110595731B (en) | 2019-11-01 | 2019-11-01 | Hypersonic wind tunnel parallel separation model relative position continuous adjusting device |
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| CN201911062051.6A CN110595731B (en) | 2019-11-01 | 2019-11-01 | Hypersonic wind tunnel parallel separation model relative position continuous adjusting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111504594B (en) * | 2020-05-27 | 2024-04-05 | 中国空气动力研究与发展中心超高速空气动力研究所 | Two-meter-level wind tunnel spray pipe clamping device |
| CN112945515B (en) * | 2021-02-01 | 2022-05-31 | 中国空气动力研究与发展中心超高速空气动力研究所 | Wind tunnel test model abdominal support interference prediction method |
| CN118294098B (en) * | 2024-06-05 | 2024-09-03 | 中国空气动力研究与发展中心超高速空气动力研究所 | Integral throwing device and integral throwing method for hypersonic wind tunnel dynamic separation test |
| CN119714774A (en) * | 2024-12-05 | 2025-03-28 | 中国航天空气动力技术研究院 | Separator separation positioning mechanism and separator position adjusting method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN210513617U (en) * | 2019-11-01 | 2020-05-12 | 中国空气动力研究与发展中心超高速空气动力研究所 | Relative position continuous adjusting device for parallel separation model of hypersonic wind tunnel |
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| US10520389B2 (en) * | 2013-11-27 | 2019-12-31 | United States Of America As Represented By The Administrator Of Nasa | Aerodynamic modeling using flight data |
| CN109029904B (en) * | 2017-06-12 | 2023-08-15 | 中国空气动力研究与发展中心超高速空气动力研究所 | Be used for hypersonic speed wind tunnel head body separation jet interference test device |
| CN109910970B (en) * | 2019-04-08 | 2021-03-23 | 中国空气动力研究与发展中心高速空气动力研究所 | Multi-degree-of-freedom installation transport vehicle and method for transporting installation model by using same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN210513617U (en) * | 2019-11-01 | 2020-05-12 | 中国空气动力研究与发展中心超高速空气动力研究所 | Relative position continuous adjusting device for parallel separation model of hypersonic wind tunnel |
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