Platform for testing force-heat effect of solid engine condensed-phase product and ceramic-based material

Abstract

The invention relates to a solid engine condensed-phase product and ceramic-based material force-heat effect test platform, which comprises an experiment cabin, a condensed-phase product generation mechanism, a ceramic-based test piece adjusting mechanism, an image data acquisition mechanism and a gas supply mechanism, and the condensed-phase product generation mechanism and the ceramic-based test piece adjusting mechanism are arranged in the experiment cabin. According to the test platform for the force-heat effect of the solid engine condensed phase product and the ceramic-based material, the high-temperature condensed phase product is generated through an air pressure driving method to impact the ceramic-based hot end material, the condensed phase product with the diameter ranging from 0.5 mm to 1.5 mm can be generated through the method, the motion behavior mode and the energy transfer rule of the condensed phase product impacting the ceramic-based hot end material are obtained, and the mechanical-heat effect of the solid engine condensed phase product and the ceramic-based material is obtained. Data support is provided for thermal protection research of the ceramic-based test piece in the solid engine, and a numerical calculation method of the force-heat effect of the condensed-phase product and the ceramic-based hot-end material is further improved.

Description

Technical Field

[0001] The present invention relates to the field of experimental testing technology, in particular to a test platform for the mechanical and thermal interaction between condensed phase products of solid motors and ceramic-based materials, which simulates the process of condensed phase products in solid motors colliding with ceramic-based test pieces. Background Art

[0002] Aluminum-containing composite propellants are widely used in solid rocket engines. During the operation of the engine combustion chamber, aluminum particles undergo a violent combustion reaction to form condensed phase products in the form of aluminum / aluminum oxide droplets. During the two-phase flow process, the condensed phase products are continuously collided and broken by the influence of high-speed combustion gas and collide with the inner wall of the engine, resulting in a highly unsteady mechanical and thermal coupling phenomenon. Due to the complexity and unsteadiness of this process, the mechanical and thermal mechanism is unclear. Therefore, this experimental device is used to study the mechanical and thermal interaction laws between the condensed phase products and ceramic-based hot end materials.

[0003] The research objects of existing experimental equipment are mainly condensed phase products impacting graphite specimens, insulation layer specimens, etc. However, with the continuous improvement of engine thrust performance, the temperature in the combustion chamber is getting higher and higher, and the hot end components in the engine are gradually replaced by ceramic matrix composites (CMC). The mechanical and thermal interaction mechanism between condensed phase products and ceramic matrix composites also needs further exploration. Therefore, the present invention provides an experimental platform for studying the mechanical and thermal interaction laws between condensed phase products and ceramic matrix specimens, mastering the movement behavior mode of condensed phase products in the engine impacting the ceramic matrix wall, developing high-precision numerical simulation methods, and making high-confidence predictions on the energy transfer laws during the impact process, ultimately providing theoretical and data support for the design and development of the engine. Summary of the Invention

[0004] In order to explore the laws of mechanical and thermal interactions between condensed phase products and ceramic-based materials, the purpose of the present invention is to provide a test platform for the mechanical and thermal interactions between condensed phase products and ceramic-based materials in solid rocket engines, obtain the motion behavior patterns and energy transfer laws of condensed phase products impacting ceramic-based specimens, and improve the numerical calculation method of the mechanical and thermal interactions between condensed phase products and ceramic-based hot end materials.

[0005] The present invention is achieved through the following technical solutions.

[0006] A test platform for the mechanical and thermal interaction of solid rocket condensed phase products and ceramic-based materials, comprising an experimental cabin, a condensed phase product generation mechanism, a ceramic-based specimen adjustment mechanism, an image data acquisition mechanism, and an air supply mechanism. The condensed phase product generation mechanism and the ceramic-based specimen adjustment mechanism are arranged in the experimental cabin.

[0007] The experimental chamber includes an upper end cover and a lower end seat, wherein the upper end cover and the lower end seat are sealed and connected, the lower end seat is provided with a pressure relief valve and a power line outlet, and the lower end seat is connected to a vacuum pump via a vacuum tube, and the vacuum pump is used to evacuate the experimental chamber; an observation window and a device outlet are provided on the side of the upper end cover, a condensed phase product generation mechanism is fixed to the top of the upper end cover by a sealing bolt, and a four-way joint is installed on the top of the upper end cover, and a high-pressure gas pipe and a thermocouple are connected to both sides and the top of the joint respectively;

[0008] The ceramic-based specimen adjustment mechanism includes a bracket, an inclined platform, and an electric lifting platform. The electric lifting platform is arranged at the bottom of the lower end seat, the inclined platform is arranged on the electric lifting platform, the bracket is arranged on the inclined platform, the ceramic-based specimen is placed on the bracket, and an electric thermal resistance wire is installed under the bracket;

[0009] The condensed phase product generation mechanism includes a graphite crucible, a heating coil, and a sealing base. The graphite crucible is placed in the middle of the heating coil, and the sealing base is installed at the bottom and fixedly sealed with the top of the upper end cover by sealing bolts. The heating coil is connected to a high-frequency electromagnetic induction heater outside the experimental chamber to heat and melt the material in the graphite crucible.

[0010] The gas supply mechanism includes an argon cylinder, a high-pressure gas pipeline, a high-frequency solenoid valve, a precision pressure regulating valve, a three-way joint, and a pressure reducing valve. The pressure reducing valve is installed on the argon cylinder to reduce the high-pressure argon in the cylinder and transport it to the three-way joint through the high-pressure gas pipeline to provide argon for the entire experimental device. The precision pressure regulating valve and the high-frequency solenoid valve are interconnected through the high-pressure gas pipeline, and the high-frequency solenoid valve is connected to both sides of the four-way joint.

[0011] The image data acquisition mechanism includes a high-speed camera and an optical platform aimed at the observation window. The high-speed camera is equipped with an amplifying optical path to amplify and photograph the condensed phase particles. The camera is placed on the optical platform, and the optical platform is adjusted to a horizontal state by a spirit level.

[0012] Furthermore, the three-way joint divides the incoming argon gas flow into two streams, one of which is connected to the upper end cover to ensure that the interior of the device is filled with inert gas, and the other is connected to the precision pressure regulating valve for the generation of condensed phase products.

[0013] Furthermore, the precision pressure regulating valve can accurately adjust the airflow pressure with an accuracy of 0.001 MPa.

[0014] Furthermore, the observation window is made of tempered glass and is sealed and installed on both sides of the upper end cover.

[0015] Furthermore, the sealing base is also provided with a micro camera, which is installed obliquely on the sealing base to capture the movement process of the condensed phase product impacting the ceramic-based specimen from above.

[0016] Furthermore, the bottom of the graphite crucible has single small holes and array holes of different diameters, which are used to simulate single particles and particle groups impacting the ceramic-based specimen. The single small holes and array holes of different diameters are used to generate condensed phase products of different diameters.

[0017] Furthermore, the high-frequency solenoid valve is controlled by a PLC program to open and close at a certain time and in a certain order, thereby increasing the pressure inside the crucible and forming a pressure difference with the environment outside the crucible, thereby forcing the molten aluminum or aluminum oxide out of the small holes at the bottom of the crucible to form droplets.

[0018] Furthermore, the thermocouple is an S-type platinum-rhodium thermocouple (high-temperature corundum ceramic tube), which is installed on a four-way joint and extends into the interior of the graphite crucible to measure the temperature of molten aluminum or alumina.

[0019] Furthermore, the device outlet is used to replace ceramic-based test pieces, adjust the position of equipment in the device, install and remove graphite crucibles, replace materials, and is sealed by an O-type sealing strip during experiments.

[0020] Furthermore, the power cord outlet leads out the power cords of the electric lifting platform, electric heating resistance wire, miniature camera and other equipment in the device, and is sealed using a special sealing locking thread.

[0021] Furthermore, the pressure relief valve is installed at the lower end seat. During a high-pressure experiment, when the actual pressure in the device exceeds the set pressure, the pressure is automatically relieved and restored to the set pressure to ensure the safety of the experiment. After the experiment, the device is relieved and restored to atmospheric pressure.

[0022] Furthermore, the tilting platform is used to conduct experiments in which condensed-phase particles impact ceramic-based specimens at different angles. The platform is equipped with an intelligent angle measuring instrument to measure the current tilt angle of the platform with an accuracy of 0.01°.

[0023] Furthermore, the electric heating resistance wire is installed under the bracket to heat the ceramic-based specimen and provide a high-temperature environment. The material is HRE alloy, and the temperature can reach 1600K~1700K.

[0024] Furthermore, the ceramic-based test piece includes a flat surface and curved test pieces with different curvatures.

[0025] The experiment of condensed phase products impacting ceramic-based specimens was conducted using the aforementioned experimental platform for studying the mechanical and thermal interaction between condensed phase products and ceramic-based specimens, which includes the following steps:

[0026] Step 1: Assemble each experimental equipment in sequence to complete the construction of the experimental platform;

[0027] Step 2: Adjust the electric lifting platform to the required height, adjust the tilting platform to the required impact angle, install the bracket, place the ceramic-based specimen, and ensure that the ceramic-based specimen can be observed through the tempered glass;

[0028] Step 3: Place the material in the graphite crucible, place it in the heating coil and seal it, and finally seal the device outlet;

[0029] Step 4: Turn on the high-speed camera and adjust the angle to ensure that the condensed phase product can be photographed hitting the ceramic-based specimen;

[0030] Step 5: Turn on the vacuum pump, check the air tightness of the device and extract the air from the device;

[0031] Step 6: Open the argon gas bottle and adjust the pressure reducing valve to control the pressure of the argon gas flow so that the experimental chamber is filled with argon gas;

[0032] Step 7: Connect the high-frequency electromagnetic induction heater to three-phase power to heat and melt the aluminum or aluminum oxide, measure the temperature using a thermocouple, and adjust the heating temperature of the heater according to the measurement result of the thermocouple;

[0033] Step 8: After all the argon is melted, the pressure of the argon gas entering the crucible is controlled by a precision pressure regulating valve. The opening and closing of the high-frequency solenoid valves on both sides and the duration of the opening and closing are controlled by a PLC program. By controlling the gas pressure and the solenoid valve opening and closing time, condensed phase products with different diameters and initial velocities are generated.

[0034] Step nine, using a high-speed camera and a micro camera to shoot the process of the condensed phase product impacting the ceramic-based test piece, and processing and analyzing the shooting results;

[0035] Step 10: Turn off the power of all equipment, close the argon cylinder, use the pressure relief valve to relieve the pressure of the device, wait for the device to cool to room temperature, and take out the ceramic-based specimen to analyze the ablation of the material.

[0036] Compared with the existing technology, the advantages of the present invention are: the present invention provides an experimental platform for studying the mechanical and thermal interaction laws between condensed phase products and ceramic-based specimens, obtains the motion behavior pattern and energy transfer law of condensed phase products impacting ceramic-based specimens, and improves the numerical calculation method of condensed phase products impacting the wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic diagram of the installation of various experimental devices of the experimental platform for studying the mechanical and thermal interaction between condensed phase products and ceramic-based specimens of the present invention;

[0038] Figure 2 This is a schematic diagram of the internal equipment installation of the upper end cover and lower end base of the experimental platform for studying the mechanical and thermal interaction between condensed phase products and ceramic-based specimens of the present invention;

[0039] Figure 3 It is a schematic diagram of the plane and curved surface of a ceramic-based specimen of the experimental platform for studying the mechanical and thermal interaction between condensed phase products and ceramic-based specimens of the present invention;

[0040] Figure 4 This is a schematic diagram of a thermocouple for the experimental platform for studying the mechanical and thermal interaction between condensed phase products and ceramic-based specimens of the present invention;

[0041] Figure 5 Schematic diagram of the tilted platform of the experimental platform for studying the mechanical and thermal interaction between condensed phase products and ceramic-based specimens of the present invention;

[0042] Figure 6 Schematic diagram of the electric lifting platform of the experimental platform for studying the mechanical and thermal interaction between condensed phase products and ceramic-based specimens of the present invention;

[0043] The accompanying drawings are marked as follows: upper end cover 1, lower end base 2, argon cylinder 3, high-frequency electromagnetic induction heater 4, high-speed camera 5, optical platform 6, vacuum pump 7, vacuum tube 8, pressure reducing valve 9, three-way connector 10, high-pressure gas pipe 11, precision pressure regulating valve 12, high-frequency solenoid valve 13, thermocouple 14, four-way connector 15, pressure relief valve 16, power cord outlet 17, device outlet 18, tempered glass 19, sealing bolt 20, graphite crucible 21, heating coil 22, miniature camera 23, sealing base 24, ceramic-based specimen 25, bracket 26, electric heating resistance wire 27, tilting platform 28, and electric lifting platform 29. DETAILED DESCRIPTION

[0044] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0045] like Figures 1 to 6 As shown, a test platform for the mechanical and thermal interaction between condensed phase products of solid rocket engines and ceramic-based materials includes an experimental cabin, a condensed phase product generation mechanism, a ceramic-based specimen adjustment mechanism, an image data acquisition mechanism, and an air supply mechanism. The condensed phase product generation mechanism and the ceramic-based specimen adjustment mechanism are arranged in the experimental cabin.

[0046] The experimental chamber includes an upper end cover 1 and a lower end seat 2, the upper end cover 1 and the lower end seat 2 are sealed together, a pressure relief valve 16 and a power line outlet 17 are provided on the lower end seat 2, and the lower end seat 2 is connected to a vacuum pump 7 via a vacuum tube 8, and the vacuum pump 7 is used to evacuate the experimental chamber; an observation window and a device outlet 18 are provided on the side of the upper end cover 1, a condensed phase product generation mechanism is fixed to the top of the upper end cover 1 by a sealing bolt 20, a four-way joint 15 is installed on the top of the upper end cover 1, and a high-pressure gas pipe 11 and a thermocouple 14 are connected to both sides and the top of the joint respectively;

[0047] The ceramic-based specimen adjustment mechanism includes a bracket 26, an inclined platform 28, and an electric lifting platform 29. The electric lifting platform 29 is arranged at the bottom of the lower end seat 2, the inclined platform 28 is arranged on the electric lifting platform 29, the bracket 26 is arranged on the inclined platform 28, and the ceramic-based specimen 25 is placed on the bracket 26. An electric heating resistance wire 27 is installed under the bracket 26;

[0048] The condensed phase product generation mechanism includes a graphite crucible 21, a heating coil 22, and a sealing base 24. The graphite crucible 21 is placed in the middle of the heating coil 22, and the sealing base 24 is installed at the bottom and fixedly sealed with the top of the upper end cover 1 through a sealing bolt 20. The heating coil 22 is connected to a high-frequency electromagnetic induction heater 4 outside the experimental chamber to heat and melt the material in the graphite crucible 21.

[0049] The gas supply mechanism includes an argon cylinder 3, a high-pressure gas pipe 11, a high-frequency solenoid valve 13, a precision pressure regulating valve 12, a three-way joint 10, and a pressure reducing valve 9. The pressure reducing valve 9 is installed on the argon cylinder 3 to reduce the high-pressure argon in the cylinder and transport it to the three-way joint 10 through the high-pressure gas pipe 11 to provide argon for the entire experimental device. The precision pressure regulating valve 12 and the high-frequency solenoid valve 13 are interconnected through the high-pressure gas pipe 11, and the high-frequency solenoid valve 13 is connected to both sides of the four-way joint 15.

[0050] The image data acquisition mechanism includes a high-speed camera 5 and an optical platform 6 aimed at the observation window. The high-speed camera 5 is equipped with an amplifying optical path to amplify and photograph the condensed phase particles. The high-speed camera 5 is placed on the optical platform 6, and the optical platform 6 is adjusted to a horizontal state by a spirit level.

[0051] Furthermore, the three-way connector 10 divides the incoming argon gas into two streams, one of which is connected to the upper end cover 1 to ensure that the interior of the device is filled with inert gas, and the other is connected to the precision pressure regulating valve 12 for the generation of condensed phase products.

[0052] Furthermore, the precision pressure regulating valve 12 can precisely adjust the airflow pressure with an accuracy of 0.001 MPa.

[0053] Furthermore, the observation window 19 is made of tempered glass and is sealed and installed on both sides of the upper end cover 1.

[0054] Furthermore, the sealing base 24 is also provided with a micro camera 23 , which is obliquely mounted on the sealing base 24 to capture the movement process of the condensed phase product colliding with the ceramic-based specimen from above.

[0055] Furthermore, the bottom of the graphite crucible 21 has single small holes and array holes of different diameters for simulating single particles and particle groups impacting the ceramic-based specimen. The single small holes and array holes of different diameters are used to generate condensed phase products of different diameters.

[0056] Furthermore, the high-frequency solenoid valve 13 is controlled by a PLC program to open and close at different times and in different sequences, thereby increasing the pressure inside the crucible and creating a pressure difference with the environment outside the crucible, thereby forcing the molten aluminum or aluminum oxide out of the small holes at the bottom of the crucible to form droplets.

[0057] Furthermore, the thermocouple 14 is an S-type platinum-rhodium thermocouple (high-temperature corundum ceramic tube), which is installed on the four-way joint 15 and extends into the interior of the graphite crucible 21 to measure the temperature of the molten aluminum or aluminum oxide.

[0058] Furthermore, the device outlet 18 is used to replace ceramic-based test pieces, adjust the position of equipment in the device, install and remove graphite crucibles, replace materials, and is sealed by an O-type sealing strip during experiments.

[0059] Furthermore, the power line outlet 17 leads out the power lines of the electric lifting platform 29, the electric heating resistance wire 27, the micro camera 23 and other equipment in the device, and is sealed using a special sealing locking thread.

[0060] Furthermore, the pressure relief valve 16 is installed on the lower end seat 2. When conducting a high-pressure experiment, when the actual pressure in the device exceeds the set pressure, the pressure is automatically relieved and restored to the set pressure to ensure the safety of the experiment. After the experiment, the device is relieved and restored to atmospheric pressure.

[0061] Furthermore, the tilting platform 28 is used to conduct experiments in which condensed-phase particles impact ceramic-based specimens at different angles. The platform is equipped with an intelligent angle measuring instrument to measure the current tilt angle of the platform with an accuracy of 0.01°.

[0062] Furthermore, the electric heating resistance wire 27 is installed under the bracket 26 to heat the ceramic-based specimen and provide a high-temperature environment. The material is HRE alloy, and the temperature can reach 1600K~1700K.

[0063] Furthermore, the ceramic-based test piece 25 includes a flat surface and curved test pieces with different curvatures.

[0064] The experiment of condensed phase products impacting ceramic-based specimens was conducted using the aforementioned experimental platform for studying the mechanical and thermal interaction between condensed phase products and ceramic-based specimens, which includes the following steps:

[0065] Step 1: Assemble each experimental equipment in sequence to complete the construction of the experimental platform;

[0066] Step 2: Adjust the electric lifting platform 29 to the required height, adjust the tilting platform 28 to the required impact angle, install the bracket 26, and place the ceramic-based specimen 25, ensuring that the ceramic-based specimen can be observed through the tempered glass;

[0067] Step 3: Place the raw material (aluminum or alumina in this embodiment) in the graphite crucible 21, place it in the heating coil 22 and seal it, and finally seal the device outlet 18;

[0068] Step 4: Turn on the high-speed camera 5 and adjust the angle to ensure that the condensed phase product can be photographed impacting the ceramic-based specimen;

[0069] Step 5: Turn on the vacuum pump 7 to check the air tightness of the device and extract the air from the device;

[0070] Step 6: Open the argon gas cylinder 3 and adjust the pressure reducing valve to control the pressure of the argon gas flow so that the experimental chamber is filled with argon gas;

[0071] Step 7: Connect the high-frequency electromagnetic induction heater 4 to three-phase power to heat and melt the aluminum or aluminum oxide, measure the temperature using the thermocouple 14, and adjust the heating temperature of the heater according to the measurement result of the thermocouple;

[0072] Step 8: After all the argon is melted, the pressure of the argon gas entering the crucible is controlled by the precision pressure regulating valve 12. The opening and closing of the high-frequency solenoid valves 13 on both sides and the duration of the opening and closing are controlled by the PLC program. By controlling the gas pressure and the solenoid valve opening and closing time, condensed phase products with different diameters and initial velocities are generated.

[0073] Step nine, using the high-speed camera 5 and the micro camera 23 to shoot the process of the condensed phase product impacting the ceramic-based test piece, and processing and analyzing the shooting results;

[0074] Step 10: Turn off all power supplies of the equipment, close the argon cylinder 3, use the pressure relief valve 16 to release the pressure of the device, wait for the device to cool to room temperature, and take out the ceramic-based test piece 25 to analyze the ablation of the material.

[0075] The above description is only a preferred embodiment of the present invention and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A test platform for the thermal interaction between solid rocket condensed phase products and ceramic-based materials, characterized by: It includes an experimental chamber, a condensed phase product generating mechanism, a ceramic-based specimen adjusting mechanism, an image data acquisition mechanism, and an air supply mechanism, wherein the condensed phase product generating mechanism and the ceramic-based specimen adjusting mechanism are arranged in the experimental chamber; The experimental chamber comprises an upper end cover (1) and a lower end seat (2), wherein the upper end cover (1) is sealedly connected to the lower end seat (2), a pressure relief valve (16) and a power line outlet (17) are provided on the lower end seat (2), and the lower end seat (2) is connected to a vacuum pump (7) via a vacuum tube (8), and the vacuum pump (7) is used to evacuate the experimental chamber; an observation window and a device outlet (18) are provided on the side of the upper end cover (1), a condensed phase product generating mechanism is fixed to the top of the upper end cover (1) via a sealing bolt (20), a four-way joint (15) is installed at the top of the upper end cover (1), and a high-pressure gas pipe (11) and a thermocouple (14) are connected to both sides and the top of the joint respectively; The ceramic-based specimen adjustment mechanism comprises a bracket (26), an inclined platform (28), and an electric lifting platform (29), wherein the electric lifting platform (29) is arranged at the bottom of the lower end seat (2), the inclined platform (28) is arranged on the electric lifting platform (29), the bracket (26) is arranged on the inclined platform (28), the ceramic-based specimen (25) is placed on the bracket (26), and an electric heating resistance wire (27) is installed below the bracket (26); The condensed phase product generation mechanism includes a graphite crucible (21), a heating coil (22), and a sealing base (24); the graphite crucible (21) is placed in the middle of the heating coil (22); the sealing base (24) is installed at the bottom and is fixedly sealed with the top of the upper end cover (1) through a sealing bolt (20); the heating coil (22) is connected to a high-frequency electromagnetic induction heater (4) outside the experimental chamber to heat and melt the material in the graphite crucible (21); The gas supply mechanism includes an argon gas bottle (3), a high-pressure gas pipe (11), a high-frequency solenoid valve (13), a precision pressure regulating valve (12), a three-way joint (10), and a pressure reducing valve (9). The pressure reducing valve (9) is installed on the argon gas bottle (3), reduces the pressure of the high-pressure argon gas in the bottle, and transmits the pressure to the three-way joint (10) through the high-pressure gas pipe (11) to provide argon gas for the entire experimental device. The precision pressure regulating valve (12) and the high-frequency solenoid valve (13) are connected to each other through the high-pressure gas pipe (11), and the high-frequency solenoid valve (13) is connected to both sides of the four-way joint (15); The image data acquisition mechanism comprises a high-speed camera (5) aligned with an observation window and an optical platform (6); the high-speed camera (5) is equipped with an amplifying optical path for amplifying and photographing condensed phase particles, and is placed on the optical platform (6); and the optical platform (6) is adjusted to a horizontal state by a level.

2. The solid rocket engine condensed phase product and ceramic-based material mechanical and thermal interaction test platform according to claim 1 is characterized in that: The three-way connector (10) divides the incoming argon gas flow into two gas streams, one of which is connected to the upper end cover (1) to ensure that the interior of the device is filled with inert gas, and the other gas stream is connected to the precision pressure regulating valve (12) for the generation of condensed phase products; the precision pressure regulating valve (12) can accurately adjust the gas flow pressure with an accuracy of 0.001 MPa.

3. The solid rocket engine condensed phase product and ceramic-based material mechanical and thermal interaction test platform according to claim 1 is characterized in that: The observation window (19) is made of tempered glass and is sealed and installed on both sides of the upper end cover (1); the sealing base (24) is also provided with a micro camera (23), which is installed obliquely on the sealing base (24) to shoot the movement process of the condensed phase product impacting the ceramic base specimen from above.

4. The solid rocket engine condensed phase product and ceramic-based material mechanical and thermal interaction test platform according to claim 1 is characterized in that: The bottom of the graphite crucible (21) is provided with single small holes and array holes of different diameters, which are used to simulate the impact of single particles and particle groups on the ceramic-based specimen. The single small holes and array holes of different diameters are used to generate condensed phase products of different diameters; the high-frequency solenoid valve (13) is controlled by a PLC program to control the time and sequence of opening and closing, so that the pressure inside the crucible is increased, forming a pressure difference with the external environment of the crucible, and pressing the molten aluminum or aluminum oxide out of the small holes at the bottom of the crucible to form droplets.

5. The solid rocket motor condensed phase product and ceramic-based material mechanical and thermal interaction test platform according to claim 1 is characterized in that: The thermocouple (14) is an S-type platinum-rhodium thermocouple (high-temperature corundum ceramic tube), which is installed on the four-way joint (15) and extends into the interior of the graphite crucible (21) to measure the temperature of molten aluminum or aluminum oxide.

6. The solid rocket motor condensed phase product and ceramic-based material mechanical and thermal interaction test platform according to claim 1 is characterized in that: The device outlet (18) is used to replace ceramic-based test pieces, adjust the position of equipment in the device, install and remove graphite crucibles, replace materials, and is sealed by O-type sealing strips when conducting experiments.

7. The solid rocket motor condensed phase product and ceramic-based material mechanical and thermal interaction test platform according to claim 1 is characterized in that: The power line outlet (17) leads out the power lines of the electric lifting platform (29), the electric heating resistance wire (27), the micro camera (23) and other equipment in the device, and is sealed using a special sealing locking thread; the pressure relief valve (16) is installed on the lower end seat (2). When a high-pressure experiment is carried out, when the actual pressure in the device exceeds the set pressure, the pressure is automatically relieved to return to the set pressure to ensure the safety of the experiment. After the experiment is completed, the pressure of the device is relieved to return to atmospheric pressure.

8. The solid rocket engine condensed phase product and ceramic-based material mechanical and thermal interaction test platform according to claim 1 is characterized in that: The tilting platform (28) is used to conduct experiments in which condensed phase particles impact ceramic-based test pieces at different angles. The platform is equipped with an intelligent angle measuring instrument to measure the current tilt angle of the platform with an accuracy of 0.01°.

9. The solid rocket motor condensed phase product and ceramic-based material mechanical and thermal interaction test platform according to claim 1, characterized in that: The electric heating resistance wire (27) is installed under the bracket (26) to heat the ceramic-based test piece and provide a high-temperature environment. The material is HRE alloy, and the temperature can reach 1600K~1700K; the ceramic-based test piece (25) includes a flat surface and a curved test piece with different curvatures.

10. An experiment of condensed phase products impacting ceramic-based specimens is conducted using the solid rocket condensed phase product and ceramic-based material mechanical and thermal interaction test platform as described in any one of claims 1 to 9, comprising the following steps: Step 1: Assemble each experimental equipment in sequence to complete the construction of the experimental platform; Step 2: Adjust the electric lifting platform (29) to the required height, adjust the tilting platform (28) to the required impact angle, install the bracket (26), and place the ceramic-based test piece (25) to ensure that the ceramic-based test piece can be observed through the tempered glass; Step 3: Place the material in the graphite crucible (21), place it in the heating coil (22) and seal it, and finally seal the device outlet (18); Step 4: Turn on the high-speed camera (5) and adjust the angle to ensure that the condensed phase product can be photographed hitting the ceramic-based specimen; Step 5: Turn on the vacuum pump (7), check the air tightness of the device and extract the air from the device; Step 6: Open the argon gas bottle (3) and adjust the pressure reducing valve to control the pressure of the argon gas flow so that the experimental chamber is filled with argon gas; Step seven, connecting the high-frequency electromagnetic induction heater (4) to three-phase electricity to heat and melt the aluminum or aluminum oxide, measuring the temperature using a thermocouple (14), and adjusting the heating temperature of the heater according to the measurement result of the thermocouple; Step eight, after all the materials have been melted, the pressure of the argon gas entering the crucible is controlled by a precision pressure regulating valve (12), and the opening and closing of the high-frequency electromagnetic valves (13) on both sides and the duration thereof are controlled by a PLC program. By controlling the gas pressure and the electromagnetic valve opening and closing time, condensed phase products with different diameters and initial velocities are generated; Step nine, using a high-speed camera (5) and a micro camera (23) to shoot the process of the condensed phase product impacting the ceramic-based test piece, and processing and analyzing the shooting results; Step 10: Turn off all power supplies of the equipment, close the argon cylinder (3), use the pressure relief valve (16) to relieve the pressure of the device, wait for the device to cool to room temperature, and take out the ceramic-based test piece (25) to analyze the ablation of the material.

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