High-speed wind tunnel high-temperature environment wallboard flutter test system and method

Abstract

The invention discloses a high-speed wind tunnel high-temperature environment wallboard flutter test system and method, belongs to the technical field of wind tunnel flutter tests, and aims to solve the problem that no flutter test system for simultaneously measuring the pressure, temperature and vibration characteristics of a wallboard exists at present. The system comprises a rigid wallboard model and an elastic wallboard model, the rigid wallboard model or the elastic wallboard model is fixed on a lifting mechanism through a supporting mechanism, the surface of the rigid wallboard model is provided with a plurality of pressure measuring holes and a sensor temperature measuring system, and the plurality of pressure measuring holes and the sensor temperature measuring system establish data transmission with a data acquisition system. PSP coatings are sprayed on the rigid wallboard model and the elastic wallboard model; the surface pressure of the model is measured through the PSP camera, the surface temperature field of the model is measured through the infrared temperature measurement sensor, and the measuring point vibration characteristics of the elastic wallboard model are measured through the optical glass by the laser vibration meter system, so that a good effect is achieved for researching influence factors of wallboard flutter characteristics.

Description

Technical Field

[0001] The invention belongs to the technical field of wind tunnel flutter testing, and in particular relates to a high-speed wind tunnel high-temperature environment wall panel flutter testing system and method. Background Art

[0002] When the aircraft speed reaches a high Mach number, the aerodynamic heating phenomenon that follows will cause the surface temperature of the aircraft to continue to rise, and then conduct to the internal structure, causing the temperature of the aircraft to rise. In order to increase the flight range, high Mach number aircraft need to use lightweight materials. In the harsh thermodynamic environment, the original physical properties of the material are weakened, and thermal stress phenomena will also occur. Under the "blessing" of heat, it will also produce more intense aerodynamic phenomena than in the normal temperature environment during low-speed flight.

[0003] In particular, thinner wall panels are used in aircraft skins and air inlets, which will experience flutter under high temperature, generate noise and structural fatigue, and endanger flight safety. Research on wall panel flutter has been ongoing since the development of the discipline of thermal aeroelasticity, but experts and scholars mainly use wall panel flutter for simulation calculations. Compared with theoretical methods, there are few ground tests to measure the flutter effect of wall panels, and no relevant technology for conducting wall panel flutter tests in high-temperature environments of high-speed wind tunnels and measuring pressure, temperature, and vibration at the same time has been found in domestic and foreign public literature. In response to this problem, the present invention proposes a feasible solution and discloses a high-speed wind tunnel high-temperature environment wall panel flutter test system and method. By comparing two models, the characteristics of each physical field can be obtained, and the influence of different fixing methods and different temperatures on the wall panel flutter characteristics can be studied. Summary of the invention

[0004] The purpose of the present invention is to provide a high-speed wind tunnel high-temperature environment panel flutter test system and method to solve the problem that the research on panel flutter is still based on simulation calculation, and there is no flutter test system that can simultaneously measure the pressure, temperature and vibration characteristics of the panel. The technical solution adopted by the present invention is as follows: A high-speed wind tunnel high-temperature environment wall panel flutter test system, comprising a rigid wall panel model and an elastic wall panel model, a lifting mechanism is arranged in a wind tunnel station chamber, a wedge frame is fixed on the lifting mechanism through a supporting mechanism, the rigid wall panel model or the elastic wall panel model is fixed in a sink groove on the upper surface of the wedge frame, and a heating system is arranged on the floor of the wind tunnel station chamber, the heating system comprises a quartz lamp tube and an outer cover arranged outside the quartz lamp tube; A number of pressure measuring holes and a number of sensor temperature measuring systems are arranged on the rigid wall panel model, and the pressure measuring holes and the number of sensor temperature measuring systems respectively establish data transmission with the data acquisition system, and the rigid wall panel model and the elastic wall panel model are sprayed with PSP coating; A PSP camera, an infrared temperature sensor and a binocular posture measurement camera are mounted on the top wall of the wind tunnel resident chamber, a laser vibrometer is mounted on the side wall of the wind tunnel resident chamber, and optical glass is provided on the top wall and side wall of the wind tunnel resident chamber. The laser vibrometer, the PSP camera, the infrared temperature sensor and the binocular posture measurement camera respectively establish data transmission with the measurement and control system, and the measurement and control system controls the state of the wind tunnel and provides a trigger signal for the test system; The PSP camera measures the surface pressure of the rigid wall panel model or the elastic wall panel model through the optical glass, the infrared temperature sensor measures the surface temperature field of the rigid wall panel model or the elastic wall panel model through the optical glass, several pressure measuring holes measure the surface measuring point pressure of the rigid wall panel model, several sensor temperature measurement systems obtain the surface measuring point temperature of the rigid wall panel model, the laser vibrometer measures the measuring point vibration characteristics of the elastic wall panel model through the optical glass, and the binocular posture measurement camera measures the full-field vibration characteristics of the elastic wall panel model through the optical glass.

[0005] Furthermore, transition strips are attached to the front edges of the upper surfaces of the rigid wall panel model and the elastic wall panel model.

[0006] Furthermore, the rigid wall panel model or the elastic wall panel model is connected to the wedge frame through a plurality of screws.

[0007] Furthermore, a heat insulating pad is provided between the rigid wall panel model or the elastic wall panel model and the wedge frame.

[0008] Furthermore, the elastic wall panel model is a stainless steel plate-like component, a titanium alloy plate-like component or an aluminum alloy plate-like component.

[0009] Furthermore, the thickness of the elastic wall panel model is 0.3 mm to 0.8 mm.

[0010] Furthermore, the rigid wall panel model is a stainless steel plate-like component, a titanium alloy plate-like component or an aluminum alloy plate-like component.

[0011] Furthermore, the thickness of the rigid wall panel model is 18 mm to 22 mm.

[0012] The present invention also provides a high-speed wind tunnel high-temperature environment wall panel flutter test method, which is implemented based on the high-speed wind tunnel high-temperature environment wall panel flutter test system mentioned above, and includes the following steps: Step 1: Perform preparatory work before the test, first preheat the fixings used to connect the rigid wall panel model or the elastic wall panel model with the wedge frame, so that the fixings generate prestress, and then use the fixings to connect the rigid wall panel model or the elastic wall panel model with the wedge frame; Step 2: before testing the elastic wall panel model, after the elastic wall panel model is connected to the wedge frame, perform ground model testing and preload adjustment. When testing the rigid wall panel model, this step is omitted. Step 3: Turn on the heating system to preheat the rigid wall panel model or the elastic wall panel model through the heating system; Step 4: Close the door of the wind tunnel chamber, open the valve between the wind tunnel chamber and the vacuum tank, and start pressure equalization until the pressure in the wind tunnel chamber reaches the specified pressure condition; Step 5, heating the rigid wall panel model or the elastic wall panel model to a specified temperature through a heating system and then keeping the temperature constant; Step 6: When the air pressure in the wind tunnel room reaches the wind tunnel wind condition, turn off the heating system and open the outer cover of the heating system; Step 7: Control the wind in the wind tunnel through the measurement and control system to establish a stable flow field, and drive the rigid wall panel model or the elastic wall panel model to rise into the mainstream of the wind tunnel through the lifting mechanism. The measurement and control system synchronously sends a trigger signal for the formal test to the PSP camera, infrared temperature sensor, several pressure measuring holes, and several sensor temperature measurement systems, or the measurement and control system synchronously sends a trigger signal for the formal test to the PSP camera, infrared temperature sensor, laser vibrometer, and binocular posture measurement camera, and synchronously collects and records the test data; Step 8: Use the pressure measuring hole and the PSP camera to measure the surface pressure of the rigid wall plate model, and only use the PSP camera to measure the surface pressure of the elastic wall plate model; The surface temperature of the rigid wall panel model is measured by using a sensor temperature measurement system and an infrared temperature sensor, and the surface temperature of the elastic wall panel model is measured by only using an infrared temperature sensor; The flutter characteristics of the elastic wall panel model are measured by using a laser vibrometer and a binocular position measurement camera to obtain the vibration characteristics of the measuring point of the elastic wall panel model and the full-field flutter characteristics of the elastic wall panel model, which are mutually verified. Step 9: After the test set time is reached, before the wind tunnel is stopped, the rigid wall panel model or the elastic wall panel model is driven down and out of the mainstream through the lifting mechanism to avoid the impact of the impact load. The wind tunnel stops blowing and all systems stop collecting data; Step 10: Save the data of each system and the test is completed.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. When conducting a flutter test, use the heating system installed in the wind tunnel chamber to preheat the rigid wall panel model or the elastic wall panel model in advance, and coordinate the heating process with the wind tunnel wind process to ensure that the wind tunnel test is carried out immediately after the heating is completed, so that the rigid wall panel model or the elastic wall panel model is kept at a higher temperature for testing.

[0014] 2. The changes in pressure and temperature fields on the model surface under specified working conditions are obtained through the rigid panel model, and the flutter characteristics are obtained through the elastic panel model. The flow field data that can effectively affect the flutter characteristics have a good effect on studying the influencing factors of the panel flutter characteristics. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the system structure when the rigid wall panel model is tested in the present invention; Figure 2 A schematic diagram of the system structure when the elastic wall panel model is tested in the present invention; Figure 3 It is a schematic diagram of the connection between the rigid wall panel model and the lifting mechanism; Figure 4 It is a schematic diagram of the connection between the elastic wall panel model and the lifting mechanism; Figure 5 The present invention is a flow chart of the test method.

[0016] In the figure, 1. Rigid wall panel model, 2. Elastic wall panel model, 3. Support mechanism, 4. Wind tunnel chamber, 5. Lifting mechanism, 6. Heating system, 7. Pressure measuring hole, 8. PSP camera, 9. Optical glass, 10. Temperature sensor, 11. Infrared thermometer, 12. Laser vibrometer, 13. Binocular posture measurement camera, 14. Data acquisition system, 15. Measurement and control system, 16. Wedge frame. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is described below by the specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0018] The connection mentioned in the present invention is divided into fixed connection and detachable connection. The fixed connection is a non-detachable connection including but not limited to conventional fixed connection methods such as folding connection, rivet connection, bonding connection and welding connection. The detachable connection includes but not limited to conventional detachable methods such as bolt connection, snap connection, pin connection and hinge connection. When the specific connection method is not clearly defined, it is assumed that at least one connection method can be found in the existing connection methods to achieve the function, and those skilled in the art can choose according to their needs. For example: welding connection is selected for fixed connection, and bolt connection is selected for detachable connection.

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings. The following embodiments are provided to explain the present invention, but the present invention is not limited to the following embodiments.

[0020] Embodiment 1: Figure 1-Figure 4As shown, a high-speed wind tunnel high-temperature environment wall panel flutter test system includes a rigid wall panel model 1 and an elastic wall panel model 2. Under different train numbers under the same working condition, the rigid wall panel model 1 and the elastic wall panel model 2 are used as comparison models for wind tunnel tests. The rigid wall panel model 1 is measured by combining contact point measurement and non-contact measurement to measure the surface pressure field and temperature field. The elastic wall panel model 2 is measured by non-contact measurement to measure the model flutter characteristics, surface pressure field and temperature field. The lifting mechanism 5 is arranged in the wind tunnel resident chamber 4. The wedge frame 16 is supported by the support mechanism. The structure 3 is fixed on the lifting mechanism 5, the rigid wall panel model 1 or the elastic wall panel model 2 is fixed in the upper surface sink of the wedge frame 16, and a heating system 6 is provided on the ground of the wind tunnel resident room 4. The heating system 6 includes a quartz lamp tube and an outer cover arranged outside the quartz lamp tube. The structure of the outer cover needs to be designed, and the power of the quartz lamp tube needs to be selected. A high-voltage power supply, a low-voltage power distribution cabinet, and a power adjustment cabinet can be used as a power system to supply power to the heating system 6. The quartz lamp tube is a heating component of the heating system 6, and the rigid wall panel model 1 or the elastic wall panel model 2 can be preheated before the test starts; The surface of the rigid wall panel model 1 is provided with a plurality of pressure measuring holes 7 and a plurality of temperature measuring sensors 10, and the plurality of pressure measuring holes 7 and the plurality of temperature measuring sensors 10 respectively establish data transmission with a data acquisition system 14, and the data acquisition system 14 is used to receive signals from the pressure measuring holes 7 and the temperature measuring sensors 10 to obtain a real-time response of the model. The rigid wall panel model 1 and the elastic wall panel model 2 are both sprayed with a PSP coating; A PSP camera 8, an infrared thermometer 11 and a binocular posture measurement camera 13 are mounted on the top wall of the wind tunnel resident chamber 4. The PSP camera 8 and the PSP coating constitute a PSP system. A laser vibrometer 12 is mounted on the side wall of the wind tunnel resident chamber 4. Optical glass 9 is provided on the top wall and the side wall of the wind tunnel resident chamber 4. The laser vibrometer 12, the PSP camera 8, the infrared thermometer 11 and the binocular posture measurement camera 13 respectively establish data transmission with the measurement and control system 15 to obtain the real-time response of the rigid wall panel model 1 or the elastic wall panel model 2. The measurement and control system 15 controls the state of the wind tunnel and provides a trigger signal for the test system. The measurement and control system 15 simultaneously sends a trigger signal to all acquisition devices required for the test, so as to obtain a unified time axis and realize zero-point synchronization and acquisition synchronization. When the rigid wall panel model 1 is tested, the PSP camera 8 measures the surface pressure of the rigid wall panel model 1 through the optical glass 9, the infrared thermometer 11 measures the surface temperature field of the rigid wall panel model 1 through the optical glass 9, the plurality of pressure measuring holes 7 measure the surface measuring point pressure of the rigid wall panel model 1, and the plurality of temperature measuring sensors 10 obtain the surface measuring point temperature of the rigid wall panel model 1; When the elastic wall panel model 2 is tested, the PSP camera 8 measures the surface pressure of the elastic wall panel model 2 through the optical glass 9, the infrared thermometer 11 measures the surface temperature field of the elastic wall panel model 2 through the optical glass 9, the laser vibrometer 12 measures the measuring point vibration characteristics of the elastic wall panel model 2 in the wind tunnel test through the optical glass 9, and the binocular posture measurement camera 13 measures the full-field vibration characteristics of the elastic wall panel model 2 in the wind tunnel test through the optical glass 9. The measuring point vibration characteristics and the full-field flutter characteristics of the elastic wall panel model 2 can verify each other.

[0021] When conducting a flutter test, the rigid wall panel model 1 or the elastic wall panel model 2 is preheated in advance using the heating system 6 installed in the wind tunnel chamber 4, and the heating process is coordinated with the wind tunnel wind-generating process to ensure that the wind tunnel test is carried out immediately after the heating is completed, so that the rigid wall panel model 1 or the elastic wall panel model 2 is maintained at a higher temperature for testing.

[0022] The pressure field and temperature field changes on the model surface under the specified working conditions are obtained through the rigid wall panel model 1, and the flutter characteristics are obtained through the elastic wall panel model 2, which can effectively affect the flow field data of the flutter characteristics and have a good effect on studying the influencing factors of the wall panel flutter characteristics. The pressure field and temperature field changes on the model surface obtained by the rigid wall panel model 1 can be used as the response input for analyzing the elastic wall panel model 2.

[0023] The leading edges of the upper surfaces of the rigid wall panel model 1 and the elastic wall panel model 2 are both pasted with transition strips, which can ensure that the rigid wall panel model 1 or the elastic wall panel model 2 is located in the turbulent area of ​​the flow field, so as to facilitate comparison with the flow field of simulation evaluation.

[0024] The rigid wall panel model 1 or the elastic wall panel model 2 is connected to the wedge frame 16 through a plurality of screws.

[0025] A heat insulating pad is provided between the rigid wall panel model 1 or the elastic wall panel model 2 and the wedge frame 16 to maximize the temperature difference between the rigid wall panel model 1 or the elastic wall panel model 2 and the wedge frame 16 .

[0026] The elastic wall panel model 2 is a stainless steel plate-shaped component, a titanium alloy plate-shaped component or an aluminum alloy plate-shaped component.

[0027] The thickness of the elastic wall panel model 2 is 0.3 mm to 0.8 mm. A cavity below the elastic wall panel model 2 can be provided on the wedge frame 16 to control the pressure, and the back pressure is set to be equal to the average wall pressure in the reference test of the rigid wall panel model 1 to avoid deformation of the elastic wall panel model 2.

[0028] The rigid wall panel model 1 is a stainless steel plate-like component, a titanium alloy plate-like component or an aluminum alloy plate-like component.

[0029] The thickness of the rigid wall panel model 1 is 18 mm to 22 mm. When analyzing the data, the measured values ​​of the actual processed parts are used instead of the design values ​​of the rigid wall panel model 1 and the elastic wall panel model 2.

[0030] Embodiment 2: Figure 1-Figure 5 As shown, a high-speed wind tunnel high-temperature environment wall panel flutter test method is implemented based on a high-speed wind tunnel high-temperature environment wall panel flutter test system described in Example 1, and includes the following steps: Step 1: Perform preparatory work before the test, first preheat the fixings used to connect the rigid wall panel model 1 or the elastic wall panel model 2 with the wedge frame 16, so that the fixings generate prestress, and then use the fixings to connect the rigid wall panel model 1 or the elastic wall panel model 2 with the wedge frame 16; Step 2: before testing the elastic wall panel model 2, after the elastic wall panel model 2 is connected to the wedge frame 16, a ground model test and preload adjustment are performed. This step is omitted when testing the rigid wall panel model 1. Step 3, turning on the heating system 6, and preheating the rigid wall panel model 1 or the elastic wall panel model 2 through the heating system 6; Step 4: close the door of the wind tunnel chamber 4, open the valve between the wind tunnel chamber 4 and the vacuum tank, and start pressure equalization until the pressure in the wind tunnel chamber 4 reaches the specified pressure condition; Step 5: heating the rigid wall panel model 1 or the elastic wall panel model 2 to a specified temperature through the heating system 6 and then keeping the temperature constant; Step 6: When the air pressure in the wind tunnel stationary chamber 4 reaches the wind tunnel wind condition, the heating system 6 is turned off and the outer cover of the heating system 6 is opened; Step 7: The wind in the wind tunnel is controlled by the measurement and control system 15 to establish a stable flow field. The rigid wall panel model 1 or the elastic wall panel model 2 is lifted up by the lifting mechanism 5 to enter the mainstream of the wind tunnel. The measurement and control system 15 synchronously issues a trigger signal for the formal test to the PSP camera 8, the infrared thermometer 11, the plurality of pressure measuring holes 7, and the plurality of temperature sensors 10. Alternatively, the measurement and control system 15 synchronously issues a trigger signal for the formal test to the PSP camera 8, the infrared thermometer 11, the laser vibrometer 12, and the binocular posture measurement camera 13, and synchronously collects and records the test data. Step 8: Use the pressure measuring hole 7 and the PSP camera 8 to measure the surface pressure of the rigid wall panel model 1, and only use the PSP camera 8 to measure the surface pressure of the elastic wall panel model 2; The surface temperature of the rigid wall panel model 1 is measured by using both the temperature sensor 10 and the infrared thermometer 11, and the surface temperature of the elastic wall panel model 2 is measured by only using the infrared thermometer 11; The flutter characteristics of the elastic wall panel model 2 are measured by using a laser vibrometer 12 and a binocular position measurement camera 13, and the vibration characteristics of the measuring point of the elastic wall panel model 2 and the full-field flutter characteristics of the elastic wall panel model 2 are obtained to verify each other; Step 9: After the test set time is reached, before the wind tunnel is stopped, the rigid wall panel model 1 or the elastic wall panel model 2 is driven down and out of the mainstream by the lifting mechanism 5 to avoid the impact of the impact load. The wind tunnel stops blowing and all systems stop collecting data; Step 10: Save the data of each system and the test is completed.

[0031] The above embodiments are merely exemplary descriptions of the present invention and do not limit its protection scope. Those skilled in the art may also make partial changes thereto, which are within the protection scope of the present invention as long as they do not exceed the spirit of the present invention.

Claims

1. A high-speed wind tunnel high-temperature environment panel flutter test system, characterized by: The invention comprises a rigid wall panel model (1) and an elastic wall panel model (2); a lifting mechanism (5) is arranged in a wind tunnel chamber (4); a wedge frame (16) is fixed to the lifting mechanism (5) via a supporting mechanism (3); the rigid wall panel model (1) or the elastic wall panel model (2) is fixed in a groove on the upper surface of the wedge frame (16); a heating system (6) is arranged on the floor of the wind tunnel chamber (4); the heating system (6) comprises a quartz lamp and an outer cover arranged outside the quartz lamp; A plurality of pressure measuring holes (7) and a plurality of temperature measuring sensors (10) are provided on the rigid wall panel model (1), and the plurality of pressure measuring holes (7) and the plurality of temperature measuring sensors (10) respectively establish data transmission with a data acquisition system (14), and a PSP coating is sprayed on both the rigid wall panel model (1) and the elastic wall panel model (2); A PSP camera (8), an infrared thermometer (11) and a binocular posture measurement camera (13) are mounted on the top wall of the wind tunnel chamber (4); a laser vibrometer (12) is mounted on the side wall of the wind tunnel chamber (4); optical glass (9) is provided on the top wall and the side wall of the wind tunnel chamber (4); the laser vibrometer (12), the PSP camera (8), the infrared thermometer (11) and the binocular posture measurement camera (13) respectively establish data transmission with a measurement and control system (15); the measurement and control system (15) controls the state of the wind tunnel and provides a trigger signal for the test system; The PSP camera (8) measures the surface pressure of the rigid wall panel model (1) or the elastic wall panel model (2) through the optical glass (9); the infrared thermometer (11) measures the surface temperature field of the rigid wall panel model (1) or the elastic wall panel model (2) through the optical glass (9); a plurality of pressure measuring holes (7) measure the pressure of the surface measuring points of the rigid wall panel model (1); a plurality of temperature measuring sensors (10) obtain the temperature of the surface measuring points of the rigid wall panel model (1); the laser vibrometer (12) measures the vibration characteristics of the measuring points of the elastic wall panel model (2) through the optical glass (9); and the binocular posture measurement camera (13) measures the full-field vibration characteristics of the elastic wall panel model (2) through the optical glass (9).

2. A high-speed wind tunnel high-temperature environment panel flutter test system according to claim 1, characterized in that: Transition strips are attached to the front edges of the upper surfaces of the rigid wall panel model (1) and the elastic wall panel model (2).

3. A high-speed wind tunnel high-temperature environment panel flutter test system according to claim 2, characterized in that: The rigid wall panel model (1) or the elastic wall panel model (2) is connected to the wedge frame (16) via a plurality of screws.

4. A high-speed wind tunnel high-temperature environment panel flutter test system according to claim 3, characterized in that: A heat insulating pad is provided between the rigid wall panel model (1) or the elastic wall panel model (2) and the wedge frame (16).

5. The high-speed wind tunnel high-temperature environment panel flutter test system according to claim 1, characterized in that: The elastic wall panel model (2) is a stainless steel plate-shaped component, a titanium alloy plate-shaped component or an aluminum alloy plate-shaped component.

6. A high-speed wind tunnel high-temperature environment panel flutter test system according to claim 5, characterized in that: The thickness of the elastic wall panel model (2) is 0.3 mm to 0.8 mm.

7. A high-speed wind tunnel high-temperature environment panel flutter test system according to any one of claims 1 to 6, characterized in that: The rigid wall panel model (1) is a stainless steel plate-shaped component, a titanium alloy plate-shaped component or an aluminum alloy plate-shaped component.

8. The high-speed wind tunnel high-temperature environment panel flutter test system according to claim 7, characterized in that: The thickness of the rigid wall panel model (1) is 18 mm to 22 mm.

9. A high-speed wind tunnel high-temperature environment wall panel flutter test method, based on a high-speed wind tunnel high-temperature environment wall panel flutter test system according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1: Perform preparatory work before the test, first preheat the fixing parts used to connect the rigid wall panel model (1) or the elastic wall panel model (2) with the wedge frame (16) to generate prestress on the fixing parts, and then use the fixing parts to connect the rigid wall panel model (1) or the elastic wall panel model (2) with the wedge frame (16); Step 2: before testing the elastic wall panel model (2), after the elastic wall panel model (2) and the wedge frame (16) are connected, a ground model test and a preload adjustment are performed. When testing the rigid wall panel model (1), this step is omitted. Step 3, turning on the heating system (6) to preheat the rigid wall panel model (1) or the elastic wall panel model (2) through the heating system (6); Step 4: close the door of the wind tunnel chamber (4), open the valve between the wind tunnel chamber (4) and the vacuum tank, and start pressure equalization until the pressure in the wind tunnel chamber (4) reaches the specified pressure condition; Step 5, heating the rigid wall panel model (1) or the elastic wall panel model (2) to a specified temperature through a heating system (6) and then keeping the temperature constant; Step 6: When the air pressure in the wind tunnel stationary chamber (4) reaches the wind tunnel wind condition, the heating system (6) is turned off and the outer cover of the heating system (6) is opened at the same time; Step 7: The wind in the wind tunnel is controlled by the measurement and control system (15) to establish a stable flow field, and the rigid wall panel model (1) or the elastic wall panel model (2) is driven to rise and enter the mainstream of the wind tunnel through the lifting mechanism (5). The measurement and control system (15) synchronously issues a trigger signal for the formal test to the PSP camera (8), the infrared thermometer (11), the plurality of pressure measuring holes (7), and the plurality of temperature measuring sensors (10), or the measurement and control system (15) synchronously issues a trigger signal for the formal test to the PSP camera (8), the infrared thermometer (11), the laser vibrometer (12), and the binocular posture measurement camera (13), and synchronously collects and records the test data; Step 8, using both the pressure measuring hole (7) and the PSP camera (8) to measure the surface pressure of the rigid wall plate model (1), and only using the PSP camera (8) to measure the surface pressure of the elastic wall plate model (2); The surface temperature of the rigid wall panel model (1) is measured by using a temperature sensor (10) and an infrared thermometer (11), and the surface temperature of the elastic wall panel model (2) is measured by using only the infrared thermometer (11); The flutter characteristics of the elastic wall panel model (2) are measured by using a laser vibrometer (12) and a binocular position measurement camera (13), and the vibration characteristics of the measuring point of the elastic wall panel model (2) and the full-field flutter characteristics of the elastic wall panel model (2) are obtained, and the two are verified with each other; Step 9: After the test set time is reached, before the wind tunnel is stopped, the rigid wall panel model (1) or the elastic wall panel model (2) is driven to descend and exit the mainstream through the lifting mechanism (5) to avoid the impact of the impact load, and the wind tunnel is stopped and all systems stop collecting data; Step 10: Save the data of each system and the test is completed.

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