CN112763177A - Rail-controlled jet flow interference test device based on rod type balance and installation and positioning method thereof - Google Patents
Rail-controlled jet flow interference test device based on rod type balance and installation and positioning method thereof Download PDFInfo
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- CN112763177A CN112763177A CN202011556284.4A CN202011556284A CN112763177A CN 112763177 A CN112763177 A CN 112763177A CN 202011556284 A CN202011556284 A CN 202011556284A CN 112763177 A CN112763177 A CN 112763177A
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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
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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
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Abstract
The invention discloses a rail-controlled jet flow interference test device based on a rod balance and an installation and positioning method thereof. A rod balance is arranged on a central axis of a model of the rail-controlled jet flow interference test device for measuring aerodynamic force, and the rod balance is fixedly connected with the model and fixed on a middle bracket of the hypersonic wind tunnel through a tail support rod; a jet flow standing chamber annularly distributed on the circumference of the rod type balance is arranged in an inner cavity of the model, and annular gaps are reserved among the jet flow standing chamber, the rod type balance and the inner wall of the model; the jet flow standing chamber is fixed on a fixing chassis of the tail support rod through an adjusting screw rod, and the jet flow standing chamber moves forwards or backwards along the central axis by adjusting the adjusting screw rod; the vent pipeline of the jet flow stagnation chamber is externally connected with a high-pressure air source. The mounting and positioning method adopts a rod balance to solve the problem that the positions of a balance center and a pressure center are inconsistent in a rail-controlled jet flow interference test of the hypersonic wind tunnel; the work load of the spray pipe installation and positioning is reduced, the positioning precision is improved, and the test efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of hypersonic wind tunnel tests, and relates to a rail-controlled jet flow interference test device based on a rod balance and an installation and positioning method thereof.
Background
The lateral jet interference direct force control and control surface aerodynamic force composite control technology is a commonly used control method for the current prevention and control guided missile. When jet direct force control is adopted, the jet interference exists, so that the aerodynamic characteristics of the aircraft present strong nonlinearity and uncertainty, and the precision and the response speed of a missile control system are seriously influenced. At present, theoretical analysis, numerical simulation and hypersonic wind tunnel test means are usually adopted to obtain the aerodynamic characteristics of the model under the condition of jet flow action, and input parameters are provided for missile design and control.
When a rail-controlled jet flow interference test of a hypersonic wind tunnel is carried out, a ring balance and jet flow resident chamber serial type design is usually adopted. The use of this design results in a distance between the model center of pressure and the balance design center of gravity, which is in contradiction to the principle that aerodynamic force measurement tests require that the balance center of gravity be substantially identical to the model center of pressure.
Currently, the rail-controlled jet flow interference test device based on the rod balance and the installation and positioning method thereof are in urgent need to be developed.
Disclosure of Invention
The invention aims to solve the technical problem of providing a rail-controlled jet flow interference test device based on a rod balance and an installation and positioning method thereof.
The rail-controlled jet flow interference test device based on the rod-type balance is characterized in that the rod-type balance is arranged on a central axis of a model of the rail-controlled jet flow interference test device to measure aerodynamic force, the rod-type balance and the model are fixedly connected in a conical surface matching and balance tensioning nut tensioning mode, and the rod-type balance is fixed on a middle support of a hypersonic wind tunnel through a tail support rod; a jet flow standing chamber is arranged in an inner cavity of the model, the jet flow standing chamber is annularly distributed around the rod type balance, and annular gaps are reserved between the jet flow standing chamber and the rod type balance and between the jet flow standing chamber and the inner wall of the model; a fixed chassis is fixed on the tail support rod, the jet flow standing chamber is fixed on the fixed chassis through adjusting screws uniformly distributed along the circumferential direction, the adjusting screws are adjusted, and the jet flow standing chamber moves forwards or backwards along the central axis; the jet flow stagnation chamber is externally connected with a high-pressure air source through a ventilation pipeline.
Furthermore, the central axis of the jet flow standing chamber is superposed with the central axis of the model, a standing chamber support rod connecting through hole is formed in the central axis of the jet flow standing chamber, and the tail support rod is connected with the rod balance in the standing chamber support rod connecting through hole;
the rear section of the jet flow standing chamber is a stage, a standing chamber pin hole is formed in the surface of the stage, and a connecting pin sequentially penetrates through the model and the jet flow standing chamber to position the relative position between the jet flow standing chamber and the model;
the rear end face of the stage of the jet flow chamber standing is provided with uniformly distributed chamber standing connecting threaded holes, and the adjusting screw penetrates through the chamber standing connecting threaded holes and is fixed on the rear end face of the stage;
and the rear end surface of the stage of the jet flow standing chamber is provided with a standing chamber ventilation pipeline connecting hole, and the jet flow standing chamber is externally connected with a high-pressure air source through a ventilation pipeline fixed on the ventilation pipeline connecting hole.
Furthermore, a spray pipe is arranged on the jet flow standing chamber, and high-pressure gas of a high-pressure gas source enters the jet flow standing chamber through a gas pipeline and is sprayed out of the surface of the model through the spray pipe, so that transverse jet flow simulation of the model is realized; a gap is reserved between the spray pipe and the model, and the spray pipe is not in contact with the model.
Furthermore, a test hole is formed in the front end face of the jet flow resident chamber, a resident chamber plug provided with a sensor plugs the test hole, and high-pressure airflow parameters in the jet flow resident chamber are measured.
Furthermore, the stagnation chamber supporting rod of the jet flow stagnation chamber is divided into a front section and a rear section by a connecting through hole, the length of the rear section is L, the diameter of the rear section is D, L is more than or equal to 1.5D, the diameter of the front section is D +2D1, D1 is the step difference between the front section and the rear section, and D1 is more than or equal to 2 mm.
Furthermore, a fine adjustment nut is fixed on the adjusting screw rod and is screwed or loosened through a wrench.
Further, the fixed chassis is an annular disc; the central axis of the fixed chassis is coincided with the central axis of the model, the center of the fixed chassis is provided with a shaft sleeve sleeved on the tail support rod, the shaft sleeve is uniformly provided with fixed chassis connecting pin holes, and the fixed chassis is fixed on the tail support rod by pins penetrating through the fixed chassis connecting pin holes; the outer ring of the fixed chassis is uniformly provided with fixed chassis connecting through holes, and the adjusting screw penetrates through the fixed chassis connecting through holes to be fixedly connected with a stage of jet flow parking and the fixed chassis; u-shaped holes for fixing the chassis are uniformly distributed on the outer ring of the fixed chassis, and the ventilation pipeline penetrates through the U-shaped holes for fixing the chassis to be connected with the jet flow standing chamber.
Further, the balance tensioning nut is also provided with a balance pressing gasket.
Furthermore, the surface of the model is provided with a notch, a connecting cover plate is arranged on the notch, a spray pipe hole is formed in the connecting cover plate, the spray pipe penetrates through the spray pipe hole, an annular gap is reserved between the spray pipe and the spray pipe hole, and the spray pipe hole are not in contact.
The invention discloses an installation and positioning method of a rail-controlled jet flow interference test device based on a rod type balance, which comprises the following steps of:
a. a rod balance is arranged on the tail strut;
b. mounting a tail strut on a middle mechanism of the hypersonic wind tunnel;
c. a fixed chassis is sleeved on the tail strut and is fixed through a pin penetrating through a connecting pin hole of the fixed chassis;
d. sleeving a jet flow standing chamber on a rod type balance, and fixing the jet flow standing chamber through a stage of sequentially penetrating through a jet flow standing chamber platform and an adjusting screw of a fixed chassis;
e. mounting a ventilation pipeline on a standing chamber connecting threaded hole of a jet flow standing chamber;
f. fixing the rear section of the model on a rod balance in a conical surface matching mode, mounting a balance pressing gasket at the front end of the rod balance, and tensioning the rear section of the model through a balance tensioning nut;
g. sequentially penetrating a connecting pin through the rear section of the model and the jet flow standing chamber, positioning the relative positions of the rear section of the model and the jet flow standing chamber, and screwing a fine adjustment nut by a wrench;
h. removing the connecting pin, checking whether the width of an annular gap between the spray pipe and the rear section of the model is uniform or not, and finishing the installation if the width of the annular gap reaches the requirement; otherwise, screwing or loosening the fine adjustment nut through a wrench, moving the jet flow parking chamber back and forth, and adjusting the annular gap between the spray pipe and the rear section of the model until the annular gap is uniform;
i. and installing the front section of the model to finish installation and positioning.
The current commonly used serial design of a ring balance and a jet flow standing chamber has troublesome spray pipe position adjustment, and the installation position of the spray pipe is usually adjusted by adopting a coarse positioning and fine adjustment mode. The rail-controlled jet flow interference test device based on the rod balance and the mounting and positioning method thereof position the mounting position of the spray pipe in a precise positioning and fastening mode, ensure the reliable mounting position of the spray pipe, greatly reduce the adjustment workload and improve the test model preparation efficiency of the rail-controlled jet flow interference test of the hypersonic wind tunnel.
The rail-controlled jet flow interference test device based on the rod-type balance and the mounting and positioning method thereof adopt the rod-type balance, and solve the problem that the positions of a balance center and a pressure center are inconsistent in the rail-controlled jet flow interference test of the hypersonic wind tunnel; the work load of the installation and the positioning of the spray pipe is reduced, the installation and the positioning precision of the spray pipe is improved, and the test efficiency is improved.
Drawings
FIG. 1 is a schematic structural diagram (front view) of the rail-controlled jet flow disturbance testing device based on the rod balance of the present invention;
FIG. 2 is a schematic structural diagram (solid) of the rail-controlled jet flow disturbance testing device based on the rod balance of the present invention;
FIG. 3 is a jet flow stagnation chamber (perspective view) in the rail-controlled jet flow disturbance testing device based on the rod balance of the present invention;
FIG. 4 is a jet stagnation chamber (cross-sectional view) in the rail-controlled jet disturbance testing device based on the rod balance of the present invention;
FIG. 5 is a perspective view of a fixed chassis in the rail-controlled jet flow disturbance testing device based on the rod balance of the present invention;
FIG. 6 is an assembly drawing of a rod balance and a fixed chassis in the rail-controlled jet interference test device based on the rod balance of the present invention;
FIG. 7 is a schematic model assembly view (front view) of the rail-controlled jet flow disturbance testing device based on the rod balance of the present invention;
fig. 8 is a model assembly schematic view (cross-sectional view) of the rail-controlled jet disturbance testing device based on the rod balance of the present invention.
In the figure, 1, a jet flow chamber 2, an adjusting screw rod 3, a fixed chassis 4, a ventilation pipeline 5, a tail support rod 6, a spanner 7, a fine adjustment nut 8, a spray pipe 9, a chamber plug 10, a rod type balance 11, a balance compression gasket 12, a balance tension nut 13, a connecting cover plate 14, a connecting pin 15 and a model are arranged;
101. a room holding pin hole 102, a room holding connection threaded hole 103, a room holding vent pipeline connection hole 104 and a room holding support rod connection through hole;
301. a fixed chassis U-shaped hole 302, a fixed chassis connecting through hole 303, and a fixed chassis connecting pin hole.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
Example 1
As shown in fig. 1 and fig. 2, a rod balance 10 is installed on a central axis of a model 15 of the rail-controlled jet flow disturbance testing device based on the rod balance to measure aerodynamic force, the rod balance 10 and the model 15 are fixedly connected in a conical surface fit manner and a balance tensioning nut 12 tensioning manner, and the rod balance 10 is fixed on a middle support of a hypersonic wind tunnel through a tail support rod 5; a jet flow standing chamber 1 is arranged in an inner cavity of the model 15, the jet flow standing chamber 1 is annularly distributed around the rod type balance 10, and annular gaps are reserved between the jet flow standing chamber 1 and the rod type balance 10 and between the jet flow standing chamber 1 and the inner wall of the model 15; a fixed chassis 3 is fixed on the tail support rod 5, the jet flow standing chamber 1 is fixed on the fixed chassis 3 through adjusting screws 2 uniformly distributed along the circumferential direction, the adjusting screws 2 are adjusted, and the jet flow standing chamber 1 moves forwards or backwards along the central axis; the jet flow stagnation chamber 1 is externally connected with a high-pressure air source through a ventilation pipeline 4.
Further, as shown in fig. 3 and 4, the central axis of the jet stagnation chamber 1 coincides with the central axis of the model 15, a stagnation chamber support rod connecting through hole 104 is formed on the central axis of the jet stagnation chamber 1, and the tail support rod 5 is connected with the rod balance 10 in the stagnation chamber support rod connecting through hole 104;
the rear section of the jet flow standing chamber 1 is a stage, a standing chamber pin hole 101 is formed in the surface of the stage, a connecting pin 14 sequentially penetrates through a model 15 and the jet flow standing chamber 1, and the relative position between the jet flow standing chamber 1 and the model 15 is positioned;
the rear end face of the step section of the jet flow stagnation chamber 1 is provided with uniformly distributed stagnation chamber connecting threaded holes 102, and the adjusting screw rod 2 penetrates through the stagnation chamber connecting threaded holes 102 and is fixed on the rear end face of the stage;
the rear end face of the step section of the jet flow stagnation chamber 1 is provided with a stagnation chamber ventilation pipeline connecting hole 103, and the jet flow stagnation chamber 1 is externally connected with a high-pressure air source through a ventilation pipeline 4 fixed on the ventilation pipeline connecting hole 103.
Furthermore, a spray pipe 8 is installed on the jet flow stagnation chamber 1, and high-pressure gas of a high-pressure gas source enters the jet flow stagnation chamber 1 through the gas pipeline 4 and is sprayed out of the surface of the model 15 through the spray pipe 8, so that transverse jet flow simulation of the model 15 is realized; a gap is reserved between the spray pipe 8 and the model 15, and the spray pipe 8 is not in contact with the model 15.
Furthermore, a test hole is formed in the front end face of the jet flow stagnation chamber 1, a stagnation chamber plug 9 provided with a sensor plugs the test hole, and parameters of high-pressure airflow in the jet flow stagnation chamber 1 are measured.
Furthermore, the stagnation chamber strut connecting through hole 104 of the jet stagnation chamber 1 is divided into a front section and a rear section, the length of the rear section is L, the diameter of the rear section is D, L is more than or equal to 1.5D, the diameter of the front section is D +2D1, D1 is the step difference between the front section and the rear section, and D1 is more than or equal to 2 mm.
Furthermore, a fine adjustment nut 7 is fixed on the adjusting screw rod 2, and the fine adjustment nut 7 is screwed or loosened through a wrench 6.
Further, as shown in fig. 5, the fixed chassis 3 is a ring-shaped disc; the central axis of the fixed chassis 3 coincides with the central axis of the model 15, the center of the fixed chassis 3 is provided with a shaft sleeve sleeved on the tail support rod 5, the shaft sleeve is uniformly provided with fixed chassis connecting pin holes 303, and the fixed chassis 3 is fixed on the tail support rod 5 by pins penetrating through the fixed chassis connecting pin holes 303; the outer ring of the fixed chassis 3 is uniformly provided with fixed chassis connecting through holes 302, and the adjusting screw 2 penetrates through the fixed chassis connecting through holes 302 to be fixedly connected with the step section of the jet flow standing chamber 1 and the fixed chassis 3; the outer ring of the fixed chassis 3 is also uniformly distributed with fixed chassis U-shaped holes 301, and the ventilation pipeline 4 passes through the fixed chassis U-shaped holes 301 to be connected with the jet flow stagnation chamber 1.
Further, the balance tightening nut 12 is also fitted with a balance hold-down pad 11.
Furthermore, the surface of the model 15 is provided with a notch, a connecting cover plate 13 is arranged on the notch, a spray pipe hole is formed in the connecting cover plate 13, the spray pipe 8 penetrates through the spray pipe hole, an annular gap is reserved between the spray pipe 8 and the spray pipe hole, and the spray pipe 8 is not in contact with the spray pipe hole.
The invention discloses an installation and positioning method of a rail-controlled jet flow interference test device based on a rod type balance, which comprises the following steps of:
a. a rod balance 10 is arranged on the tail support rod 5;
b. a tail strut 5 is arranged on the middle mechanism of the hypersonic wind tunnel;
c. as shown in fig. 6, the tail strut 5 is sleeved with the fixed chassis 3, and the fixed chassis 3 is fixed by a pin penetrating through a connecting pin hole 303 of the fixed chassis;
d. sleeving a jet flow standing chamber 1 on a rod type balance 10, and fixing the jet flow standing chamber 1 through an adjusting screw 2 which sequentially penetrates through the stage of the jet flow standing chamber 1 and a fixed chassis 3;
e. mounting the ventilation pipeline 4 on a standing chamber connecting threaded hole 102 of the jet standing chamber 1;
f. as shown in fig. 7 and 8, the rear section of the model 15 is fixed on the rod balance 10 in a way of conical surface fit, a balance pressing pad 11 is installed at the front end of the rod balance 10, and the rear section of the model 15 is tightened through a balance tightening nut 12;
g. sequentially penetrating the connecting pin 14 through the rear section of the model 15 and the jet flow stagnation chamber 1, positioning the relative positions of the rear section of the model 15 and the jet flow stagnation chamber 1, and screwing the fine adjustment nut 7 through the wrench 6;
h. removing the connecting pin 14, checking whether the width of an annular gap between the spray pipe 8 and the rear section of the model 15 is uniform or not, and finishing the installation if the requirement is met; otherwise, the fine adjustment nut 7 is screwed or loosened through the wrench 6, the jet flow stagnation chamber 1 is moved back and forth, and the annular gap between the spray pipe 8 and the rear section of the model 15 is adjusted until the annular gap is uniform;
i. and mounting the front section of the model 15 to finish mounting and positioning.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The rail-controlled jet flow interference test device based on the rod type balance is characterized in that a rod type balance (10) is installed on a central axis of a model (15) of the rail-controlled jet flow interference test device to measure aerodynamic force, the rod type balance (10) is fixedly connected with the model (15) in a conical surface matching and balance tensioning nut (12) tensioning mode, and the rod type balance (10) is fixed on a middle support of a hypersonic wind tunnel through a tail support rod (5); a jet flow standing chamber (1) is arranged in an inner cavity of the model (15), the jet flow standing chamber (1) is annularly distributed around the rod type balance (10), and annular gaps are reserved between the jet flow standing chamber (1) and the rod type balance (10) and between the jet flow standing chamber (1) and the inner wall of the model (15); a fixed chassis (3) is fixed on the tail support rod (5), the jet flow standing chamber (1) is fixed on the fixed chassis (3) through adjusting screws (2) which are uniformly distributed along the circumferential direction, the adjusting screws (2) are adjusted, and the jet flow standing chamber (1) moves forwards or backwards along the central axis; the jet flow stagnation chamber (1) is externally connected with a high-pressure air source through a ventilation pipeline (4).
2. The rail-controlled jet flow disturbance test device based on the rod balance according to claim 1, wherein the central axis of the jet flow stagnation chamber (1) is coincident with the central axis of the model (15), a stagnation chamber support rod connecting through hole (104) is formed in the central axis of the jet flow stagnation chamber (1), and the tail support rod (5) is connected with the rod balance (10) in the stagnation chamber support rod connecting through hole (104);
the rear section of the jet flow standing chamber (1) is a stage, a standing chamber pin hole (101) is formed in the surface of the stage, a connecting pin (14) sequentially penetrates through the model (15) and the jet flow standing chamber (1), and the relative position between the jet flow standing chamber (1) and the model (15) is positioned;
the rear end face of the step section of the jet flow standing chamber (1) is provided with uniformly distributed standing chamber connecting threaded holes (102), and the adjusting screw rod (2) penetrates through the standing chamber connecting threaded holes (102) to be fixed on the rear end face of the stage;
and a chamber-standing ventilation pipeline connecting hole (103) is formed in the rear end face of the step section of the jet flow chamber-standing (1), and the jet flow chamber-standing (1) is externally connected with a high-pressure air source through a ventilation pipeline (4) fixed on the ventilation pipeline connecting hole (103).
3. The rail-controlled jet flow disturbance testing device based on the rod balance as claimed in claim 1, wherein a jet pipe (8) is installed on the jet flow stagnation chamber (1), and high-pressure gas of a high-pressure gas source enters the jet flow stagnation chamber (1) through the gas pipeline (4) and then is ejected from the surface of the model (15) through the jet pipe (8), so that transverse jet flow simulation of the model (15) is realized; a gap is reserved between the spray pipe (8) and the model (15), and the spray pipe (8) is not in contact with the model (15).
4. The rail-controlled jet flow disturbance testing device based on the rod balance as recited in claim 1, wherein a testing hole is formed in the front end face of the jet flow stagnation chamber (1), a stagnation chamber plug (9) provided with a sensor plugs the testing hole, and parameters of high-pressure air flow in the jet flow stagnation chamber (1) are measured.
5. The rail-controlled jet flow disturbance test device based on the rod balance as claimed in claim 1, wherein the stay chamber strut connecting through hole (104) of the jet flow stay chamber (1) is divided into a front section and a rear section, the length of the rear section is L, the diameter of the rear section is D, L is larger than or equal to 1.5D, the diameter of the front section is D +2D1, D1 is the step difference between the front section and the rear section, and D1 is larger than or equal to 2 mm.
6. The rail-controlled jet flow disturbance test device based on the rod balance as recited in claim 1, wherein a fine adjustment nut (7) is fixed on the adjusting screw rod (2), and the fine adjustment nut (7) is screwed or loosened by a wrench (6).
7. The rail-controlled jet flow disturbance test device based on the rod balance as claimed in claim 1, wherein the fixed chassis (3) is an annular disc; the central axis of the fixed chassis (3) is coincided with the central axis of the model (15), the center of the fixed chassis (3) is provided with a shaft sleeve sleeved on the tail support rod (5), the shaft sleeve is uniformly provided with fixed chassis connecting pin holes (303), and the fixed chassis (3) is fixed on the tail support rod (5) through pins penetrating through the fixed chassis connecting pin holes (303); the outer ring of the fixed chassis (3) is uniformly provided with fixed chassis connecting through holes (302), and the adjusting screw (2) passes through the fixed chassis connecting through holes (302) to be fixedly connected with the stage of the jet flow parking chamber (1) and the fixed chassis (3); the outer ring of the fixed chassis (3) is also uniformly provided with U-shaped holes (301) of the fixed chassis, and the ventilation pipeline (4) penetrates through the U-shaped holes (301) of the fixed chassis to be connected with the jet flow stagnation chamber (1).
8. The rail-controlled jet flow disturbance test device based on a rod balance according to claim 1, characterized in that the balance pull nut (12) is further equipped with a balance hold-down pad (11).
9. The rail-controlled jet flow disturbance test device based on the rod balance as recited in claim 1, wherein a notch is formed in the surface of the model (15), a connecting cover plate (13) is mounted on the notch, a nozzle hole is formed in the connecting cover plate (13), the nozzle (8) penetrates through the nozzle hole, an annular gap is reserved between the nozzle (8) and the nozzle hole, and the nozzle (8) is not in contact with the nozzle hole.
10. The mounting and positioning method of the rail-controlled jet flow interference test device based on the rod balance is characterized by comprising the following steps of:
a. a rod balance (10) is arranged on the tail support rod (5);
b. a tail support rod (5) is arranged on the middle mechanism of the hypersonic wind tunnel;
c. a fixed chassis (3) is sleeved on the tail support rod (5), and the fixed chassis (3) is fixed through a pin penetrating through a connecting pin hole (303) of the fixed chassis;
d. sleeving a jet flow standing chamber (1) on a rod type balance (10), and fixing the jet flow standing chamber (1) through an adjusting screw rod (2) which sequentially penetrates through a stage of the jet flow standing chamber (1) and a fixed chassis (3);
e. mounting a ventilation pipeline (4) on a standing chamber connecting threaded hole (102) of a jet standing chamber (1);
f. fixing the rear section of the model (15) on a rod type balance (10) in a conical surface matching mode, mounting a balance pressing gasket (11) at the front end of the rod type balance (10), and tensioning the rear section of the model (15) through a balance tensioning nut (12);
g. sequentially enabling a connecting pin (14) to penetrate through the rear section of the model (15) and the jet flow standing chamber (1), positioning the relative positions of the rear section of the model (15) and the jet flow standing chamber (1), and screwing a fine adjustment nut (7) through a wrench (6);
h. removing the connecting pin (14), checking whether the width of an annular gap between the spray pipe (8) and the rear section of the model (15) is uniform or not, and finishing the installation if the requirement is met; otherwise, screwing or loosening the fine adjustment nut (7) through the wrench (6), moving the jet flow chamber (1) back and forth, and adjusting the annular gap between the spray pipe (8) and the rear section of the model (15) until the annular gap is uniform;
i. and mounting the front section of the model (15) to finish mounting and positioning.
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| CN202011556284.4A CN112763177B (en) | 2020-12-25 | 2020-12-25 | Rail-controlled jet flow interference test device based on rod type balance and installation and positioning method thereof |
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| CN202011556284.4A CN112763177B (en) | 2020-12-25 | 2020-12-25 | Rail-controlled jet flow interference test device based on rod type balance and installation and positioning method thereof |
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| CN112763177B CN112763177B (en) | 2022-04-12 |
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| CN113267312A (en) * | 2021-07-19 | 2021-08-17 | 中国空气动力研究与发展中心超高速空气动力研究所 | Test model for high-temperature wind tunnel |
| CN113267320A (en) * | 2021-07-19 | 2021-08-17 | 中国空气动力研究与发展中心超高速空气动力研究所 | Water cooling device for rod type balance of high-temperature wind tunnel |
| CN113588201A (en) * | 2021-09-30 | 2021-11-02 | 中国空气动力研究与发展中心超高速空气动力研究所 | Thermal jet flow interference test device and test method for high-altitude high-speed thin environment |
| CN113588200A (en) * | 2021-09-30 | 2021-11-02 | 中国空气动力研究与发展中心超高速空气动力研究所 | High-flow reverse jet test device and method for hypersonic aircraft |
| CN115307862A (en) * | 2022-10-11 | 2022-11-08 | 中国空气动力研究与发展中心超高速空气动力研究所 | Hypersonic wind tunnel mixed heating gas jet flow test device |
| CN115791069A (en) * | 2023-01-09 | 2023-03-14 | 中国空气动力研究与发展中心超高速空气动力研究所 | Device with position-adjustable sealing spray pipe in wind tunnel test and application method |
| CN115824575A (en) * | 2023-02-22 | 2023-03-21 | 中国空气动力研究与发展中心超高速空气动力研究所 | Test method for obtaining influence of model surface micro-jet on aerodynamic characteristics |
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| CN113588201A (en) * | 2021-09-30 | 2021-11-02 | 中国空气动力研究与发展中心超高速空气动力研究所 | Thermal jet flow interference test device and test method for high-altitude high-speed thin environment |
| CN113588201B (en) * | 2021-09-30 | 2022-04-12 | 中国空气动力研究与发展中心超高速空气动力研究所 | Thermal jet flow interference test device and test method for high-altitude high-speed thin environment |
| CN115307862A (en) * | 2022-10-11 | 2022-11-08 | 中国空气动力研究与发展中心超高速空气动力研究所 | Hypersonic wind tunnel mixed heating gas jet flow test device |
| CN115791069A (en) * | 2023-01-09 | 2023-03-14 | 中国空气动力研究与发展中心超高速空气动力研究所 | Device with position-adjustable sealing spray pipe in wind tunnel test and application method |
| CN115791069B (en) * | 2023-01-09 | 2023-04-11 | 中国空气动力研究与发展中心超高速空气动力研究所 | Device with position-adjustable sealing spray pipe in wind tunnel test and application method |
| CN115824575A (en) * | 2023-02-22 | 2023-03-21 | 中国空气动力研究与发展中心超高速空气动力研究所 | Test method for obtaining influence of model surface micro-jet on aerodynamic characteristics |
| CN115824575B (en) * | 2023-02-22 | 2023-04-18 | 中国空气动力研究与发展中心超高速空气动力研究所 | Test method for obtaining influence of model surface micro-jet on aerodynamic characteristics |
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