Explosion field multi-physical field coupling test integration method and system

Abstract

The invention relates to the technical field of explosion mechanics, discloses an explosion field multi-physical field coupling test integration method and system, and aims to solve the problem that an explosion test method in the prior art cannot realize multi-physical field synchronous, high-speed and high-precision measurement. The method and the system comprise an infrared high-speed temperature measurement subsystem, a pressure measurement subsystem, a speed measurement subsystem, an optical measurement subsystem and the like, and real-time monitoring and recording of multiple physical parameters such as temperature, pressure, speed, optical radiation and the like in the explosion process are realized through a time synchronization technology and a high-speed data acquisition and processing technology. Accurate explosion field test data can be provided for the fields of military, civil use, scientific research and the like, the explosion mechanism can be deeply understood, protection measures are optimized, and the safety and economical efficiency of explosion tests are improved.

Description

Technical Field

[0001] This invention relates to the field of explosion mechanics technology, specifically to an integrated method and system for multi-physics field coupling testing of explosion fields. Background Technology

[0002] The study of explosion phenomena is of great significance in military, civilian, and scientific research fields. Explosions not only involve the rapid release of energy but also produce complex physical phenomena such as high temperature, high pressure, shock waves, light radiation, and sound waves. To gain a deeper understanding of the explosion process and its effects, multiphysics coupling tests of the explosion field are necessary.

[0003] Traditional explosion testing methods often only acquire limited physical parameters, and the testing equipment can only operate independently, failing to achieve simultaneous testing of multiple physical fields. Furthermore, due to the extremely rapid nature of the explosion process, conventional testing equipment struggles to meet the demands of high-speed measurement, leading to the loss of crucial data. Particularly when measuring temperature changes during an explosion, traditional contact temperature measurement methods, due to their slow response speed and interference with the explosion process, cannot meet the requirements for high-speed and accurate measurement.

[0004] While existing infrared thermometry technologies can achieve non-contact measurement, their response speed and data processing capabilities are often insufficient to handle the high-temperature and rapid changes in an explosion field. Therefore, there is currently a lack of an integrated method and system on the market capable of high-speed, high-precision coupled testing of multiple physical fields in an explosion field.

[0005] To address the aforementioned problems, this invention provides an integrated method and system for multi-physics field coupling testing of explosion fields, particularly the application of an infrared high-speed temperature measurement subsystem. This system enables real-time, high-speed, and high-precision measurement of multiple physical parameters during an explosion, providing an effective technical means for explosion mechanism research, protective measure design, and effectiveness evaluation. Summary of the Invention

[0006] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides an integrated method and system for multi-physics field coupling testing of explosion fields, solving the problems mentioned in the background section.

[0007] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a multi-physics field coupling test integration method and system for explosion fields, comprising the following steps: (1) High-speed imaging capture: Using a high-speed camera to image the explosion process in real time, capturing the trajectory of material movement, morphological changes and diffusion process generated at the moment of the explosion; (2) Temperature field monitoring: The temperature field during the explosion process is continuously monitored using infrared high-speed temperature measurement equipment, and temperature data of the explosion area is collected; (3) Pressure field measurement: The overpressure generated by the explosion is measured synchronously at multiple points using an overpressure sensor array. The response time of each sensor is less than 1 microsecond, and the range covers at least 0-1000 kPa to ensure that the pressure peak and its changes of the explosion wave can be accurately captured. (4) Structural deformation detection: Non-contact measurement of the dynamic deformation of the structure under explosion is performed using a high-speed digital image correlation (DIC) system or a high-precision strain gauge; (5) Data synchronization and fusion: Time synchronization processing of data collected by high-speed cameras, infrared high-speed temperature measurement equipment, overpressure sensor arrays and high-speed DIC systems or strain gauges; (6) Results analysis and optimization: Using the constructed multi-physics field coupling test model, the explosion test results are comprehensively analyzed and the test method is optimized.

[0008] Preferably, the temperature field monitoring formula is as follows: ; in, It's temperature. It is the initial temperature. It's a temperature change. It is a temperature distribution function. These are spatial coordinates. It is time; The formula for measuring the pressure field is as follows: ; in, It's pressure. It is the initial pressure. It's a change in pressure. It is a pressure distribution function. These are spatial coordinates. It's time.

[0009] Preferably, the method for constructing the multiphysics coupling test model is as follows: First, a core mathematical model incorporating the Navier-Stokes equations, energy conservation equations, and dynamic constitutive equations is established based on explosion dynamics, thermodynamics, and structural dynamics theories. Simultaneously, a microsecond-level spatiotemporal synchronization framework is constructed to achieve precise alignment of high-speed imaging, infrared temperature measurement, and pressure sensing data. Building upon this, a bidirectional physical field interaction mechanism is established using fluid-structure interaction, thermal softening effects, and dynamic mesh technology. Feature extraction and fusion of multimodal experimental data are achieved through convolutional neural networks, long short-term memory networks, and attention mechanisms. Furthermore, a heterogeneous computing architecture based on adaptive meshes and explicit-implicit hybrid algorithms is developed for efficient numerical solutions, combined with Monte Carlo methods for uncertainty quantification and error correction. Finally, a multiphysics coupling test model is formed.

[0010] Preferably, the system includes a high-speed camera testing subsystem, an infrared high-speed temperature measurement subsystem, an overpressure sensor testing subsystem, and a high-speed digital image correlation system; The high-speed camera testing subsystem includes a high-speed camera: providing high temporal resolution images for subsequent image analysis and object motion trajectory reconstruction; The infrared high-speed temperature measurement subsystem includes an infrared high-speed temperature measurement device: providing temperature data with high spatial resolution and high temporal resolution to help understand the thermal effects during the explosion process; The overpressure sensor testing subsystem includes an overpressure sensor: providing pressure change data over time for analyzing the dynamic characteristics and pressure distribution of the explosion wave; The high-speed digital image correlation system includes a high-speed DIC system: providing strain and deformation data of the object surface for evaluating the dynamic response and damage of the structure.

[0011] Preferably, the high-speed camera testing subsystem includes a high-speed camera, a lens, a light source, a trigger unit, an image storage device, a data transmission interface, and image processing software; The high-speed camera is the core device of the subsystem, used to capture images of the explosion process at a frame rate of 10,000 frames per second. It records the material movement, morphological changes and diffusion process generated at the moment of the explosion, providing detailed time-series image data for subsequent analysis. The lens is used to focus and magnify the subject being photographed, ensuring that the high-speed camera can capture clear images. Different lenses have their focal length and field of view adjusted according to test requirements. The light source provides sufficient illumination for the high-speed camera in low-light environments, ensuring image brightness and contrast, thereby improving image quality. The triggering unit is used to synchronize the high-speed camera with the occurrence of the explosion event, ensuring that the camera can start recording images the instant the explosion occurs; The image storage device is used to store image data captured by a high-speed camera, and has a high write speed and large capacity to accommodate the large amount of data generated by the high-speed camera. The data transmission interface is used to quickly transmit image data captured by the high-speed camera to a computer and other storage devices. The image processing software is used to analyze image data captured by a high-speed camera, including image preprocessing, feature extraction, and motion analysis, to enable researchers to gain a deeper understanding of the explosion process.

[0012] Preferably, the infrared high-speed temperature measurement subsystem includes an infrared high-speed thermal imager, an infrared lens, a synchronization unit, a data recording unit, a data transmission interface, a temperature calibration device, analysis software, a cooling system, and a protective device; The infrared high-speed thermal imager is the core equipment of the subsystem. It can capture the infrared radiation emitted by the target object and convert it into an image of temperature distribution, and can record the rapid temperature changes during the explosion in real time. The infrared lens is specifically designed to focus infrared radiation, ensuring that the thermal imager can capture clear images of temperature distribution. The lens's focal length and field of view are adjusted according to the testing requirements. The synchronization unit is used to ensure that the infrared thermal imager works in sync with the explosion event and other testing equipment so that temperature data can be recorded at a precise time. The data recording units are used to store temperature data collected by the infrared thermal imager. These units have high-speed data writing capabilities to meet the needs of high-speed temperature measurement. The data transmission interface is used to quickly transmit data acquired by the thermal imager to a computer and other data processing devices. The temperature calibration device is used to calibrate the infrared thermal imager to ensure the accuracy and reliability of its measurement results; The analysis software is used to process and interpret the data collected by the infrared thermal imager, including the analysis of temperature distribution maps, hot spot detection, and temperature changes over time. The cooling system is used to keep the infrared detector at a low temperature, reduce noise, and improve the sensitivity and image quality of the thermal imager. The protective device is used to protect the infrared thermal imager from damage caused by debris, shock waves, and harmful gases generated by the explosion.

[0013] Preferably, the overpressure sensor testing subsystem includes an overpressure sensor, a signal conditioner, a data acquisition system, a synchronization unit, a data recording unit, a data transmission interface, a calibration device, a protective device, analysis software, and a sensor mounting bracket; The overpressure sensor is the core component of the subsystem. It can convert the pressure wave generated by the explosion into an electrical signal. These sensors have fast response time and wide range to adapt to the instantaneous high pressure generated by the explosion. The signal conditioner is used to amplify, filter, and convert the electrical signal output by the overpressure sensor to make it suitable for the data acquisition system. It also provides the necessary power to the sensor and includes sensor calibration functions. The data acquisition system is used to collect and process the signals output by the signal conditioner. It has a high sampling rate and can capture detailed information about the explosion pressure wave. The synchronization unit is used to ensure that the overpressure sensor works in sync with the explosion event and other testing equipment so that pressure data can be recorded at a precise time. The data recording units are used to store the pressure data collected by the data acquisition system. These units have large-capacity storage and high-speed data writing capabilities. The data transmission interface is used to quickly transmit the collected data to a computer and other data processing devices; The calibration device is used to calibrate the overpressure sensor to ensure the accuracy and repeatability of its measurement results; The protective device is used to protect the overpressure sensor from the effects of debris, shock waves, and high temperatures generated by the explosion. The analysis software is used to process and interpret the collected pressure data, including the analysis of pressure-time curves, the determination of peak pressure, and the assessment of pressure distribution. The sensor mounting bracket is used to fix the overpressure sensor in the test position to ensure that the sensor remains stable and does not move during the explosion.

[0014] Preferably, the high-speed digital image correlation system includes a high-speed camera, a high-speed light source, a synchronization unit, an image acquisition card, a computer system, DIC analysis software, a protective device, and a data storage device; The high-speed camera is the core of the HS-DIC system. It can capture the deformation sequence of an object during the explosion at a frame rate of 10,000 frames per second. These cameras have the ability to capture thousands of frames per second or even higher. The high-speed light source is used to provide stable and sufficient illumination during high-speed photography, ensuring that the camera can capture clear images; The synchronization unit is used to ensure that the high-speed camera works synchronously with the explosion event or other test equipment so that image recording can begin at a precise time. The image acquisition card is used to transmit images captured by the high-speed camera to the computer system in real time. It has high-speed data transmission capability to match the frame rate of the high-speed camera. The computer system is used to control the high-speed camera, store image data, and run digital image correlation analysis software; The DIC analysis software is used to process image sequences captured by a high-speed camera and calculate the displacement and strain parameters of the object surface through digital image correlation algorithms. The protective device is used to protect high-speed cameras and other electronic equipment from the debris, shock waves and high temperatures generated by the explosion. The data storage device is used to store the original image data and DIC analysis results for a long period of time.

[0015] Preferably, the high-speed camera, infrared high-speed temperature measurement device, overpressure sensor and high-speed DIC system are all commercially available and mature devices.

[0016] Preferably, the infrared high-speed temperature measurement subsystem is used for non-contact rapid measurement of temperature changes on the sample surface during an explosion.

[0017] (III) Beneficial Effects Compared with existing technologies, this invention provides an integrated method and system for multi-physics field coupling testing of explosion fields, which has the following beneficial effects: 1. Real-time performance: This system can capture the changes in multiphysics field data in real time at the moment of explosion, providing researchers with immediate test results, thereby enabling a better understanding of the dynamic characteristics of the explosion process.

[0018] 2. High speed: The high-speed testing technology used in this invention can capture the physical changes that occur in a very short time during the explosion process, ensuring the time resolution of the test data and reducing data loss.

[0019] 3. High precision: By integrating high-precision sensors and advanced signal processing technology, this system can provide accurate test data, improving the accuracy of explosion field parameter measurement.

[0020] 4. Multi-physics coupling: This invention can simultaneously measure multiple physical parameters during the explosion process, such as temperature, pressure, and velocity, thereby comprehensively analyzing the explosion effects and their interactions.

[0021] 5. Non-invasive: The non-contact measurement technology used in this system will not interfere with the explosion process, ensuring the objectivity and reliability of the test results.

[0022] 6. System Integration: This invention integrates multiple testing subsystems into a whole, simplifying the testing process and improving testing efficiency and convenience.

[0023] 7. Data processing capability: This system has powerful data processing capabilities, enabling it to analyze and process the collected data in real time and generate intuitive test reports.

[0024] 8. Wide range of applications: This invention is not only applicable to explosion testing in the military field, but also to multiple fields such as civilian blasting, safety assessment, and scientific research.

[0025] 9. Safety: Through remote control and automated testing, this invention improves the safety of explosion testing and reduces the safety risks to operators.

[0026] 10. Economic efficiency: Compared with traditional single-point testing methods, the integrated testing system provided by this invention can save on equipment investment and operation and maintenance costs in the long run. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall system architecture of the present invention. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] This invention relates to a multi-physics field coupling test integration method and system for explosion fields. The system includes a high-speed camera test subsystem, an infrared high-speed temperature measurement subsystem, an overpressure sensor test subsystem, and a high-speed digital image correlation system. The high-speed camera testing subsystem includes a high-speed camera: providing high temporal resolution images for subsequent image analysis and object motion trajectory reconstruction; The high-speed infrared thermometry subsystem includes high-speed infrared thermometry equipment: providing high spatial and temporal resolution temperature data to help understand the thermal effects during the explosion process; The overpressure sensor testing subsystem includes an overpressure sensor: providing data on pressure changes over time for analyzing the dynamic characteristics and pressure distribution of the explosion wave; High-speed digital image correlation systems include high-speed DIC systems: providing strain and deformation data of object surfaces for evaluating the dynamic response and damage of structures; The high-speed camera testing subsystem includes a high-speed camera, lens, light source, trigger unit, image storage device, data transmission interface, and image processing software; The high-speed camera is the core device of the subsystem, used to capture images of the explosion process at a frame rate of 10,000 frames per second. It records the material movement, morphological changes and diffusion process generated at the moment of the explosion, providing detailed time-series image data for subsequent analysis. The lens is used to focus and magnify the subject being photographed, ensuring that the high-speed camera can capture a clear image. Different lenses have their focal length and field of view adjusted according to the test requirements. In low-light environments, the light source provides sufficient illumination for the high-speed camera, ensuring the brightness and contrast of the image, thereby improving image quality; The triggering unit is used to synchronize the high-speed camera with the occurrence of the explosion event, ensuring that the camera can start recording images the instant the explosion occurs; Image storage devices are used to store image data captured by high-speed cameras. They have high write speeds and large capacities to accommodate the large amounts of data generated by high-speed cameras. The data transfer interface is used to quickly transfer image data captured by a high-speed camera to a computer and other storage devices; Image processing software is used to analyze image data captured by high-speed cameras, including image preprocessing, feature extraction, and motion analysis, so that researchers can gain a deeper understanding of the explosion process; The infrared high-speed temperature measurement subsystem includes an infrared high-speed thermal imager, an infrared lens, a synchronization unit, a data recording unit, a data transmission interface, a temperature calibration device, analysis software, a cooling system, and protective devices. The high-speed infrared thermal imager is the core equipment of the subsystem. It can capture the infrared radiation emitted by the target object and convert it into an image of temperature distribution, and can record the rapid temperature changes during the explosion in real time. The infrared lens is specifically designed to focus infrared radiation, ensuring that the thermal imager can capture clear images of temperature distribution. The lens's focal length and field of view are adjusted according to the testing requirements. The synchronization unit is used to ensure that the infrared thermal imager works in sync with the explosion event and other test equipment so that temperature data recording can begin at a precise point in time. The data logging units are used to store the temperature data collected by the infrared thermal imager. These units have high-speed data writing capabilities to meet the needs of high-speed temperature measurement. The data transmission interface is used to quickly transmit data acquired by the thermal imager to computers and other data processing devices; Temperature calibration equipment is used to calibrate infrared thermal imagers to ensure the accuracy and reliability of their measurement results; The analysis software is used to process and interpret the data collected by the infrared thermal imager, including the analysis of temperature distribution maps, hot spot detection, and temperature changes over time. The cooling system is used to keep the infrared detector at a low temperature, reduce noise, and improve the sensitivity and image quality of the thermal imager. Protective devices are used to protect infrared thermal imagers from damage caused by debris, shock waves, and harmful gases generated by an explosion; The overpressure sensor testing subsystem includes an overpressure sensor, a signal conditioner, a data acquisition system, a synchronization unit, a data recording unit, a data transmission interface, a calibration device, a protective device, analysis software, and a sensor mounting bracket. The overpressure sensor is the core component of the subsystem. It can convert the pressure wave generated by the explosion into an electrical signal. These sensors have fast response time and wide range to adapt to the instantaneous high pressure generated by the explosion. The signal conditioner is used to amplify, filter, and convert the electrical signal output by the overpressure sensor to make it suitable for the data acquisition system. It also provides the necessary power to the sensor and includes sensor calibration functions. The data acquisition system is used to collect and process signals output from the signal conditioner. It has a high sampling rate and is able to capture detailed information about the explosion pressure wave. The synchronization unit is used to ensure that the overpressure sensor works in sync with the explosion event and other testing equipment so that pressure data can be recorded at a precise point in time; The data logging units are used to store the pressure data collected by the data acquisition system. These units have large-capacity storage and high-speed data writing capabilities. The data transmission interface is used to quickly transmit the collected data to computers and other data processing devices; The calibration device is used to calibrate the overpressure sensor to ensure the accuracy and repeatability of its measurement results; The protective device is used to protect the overpressure sensor from the effects of debris, shock waves, and high temperatures generated by the explosion; The analysis software is used to process and interpret the collected pressure data, including the analysis of pressure-time curves, the determination of peak pressure, and the assessment of pressure distribution. The sensor mounting bracket is used to fix the overpressure sensor in the test position to ensure that the sensor remains stable and does not move during the explosion. A high-speed digital image correlation system includes a high-speed camera, a high-speed light source, a synchronization unit, an image acquisition card, a computer system, DIC analysis software, protective devices, and data storage equipment. High-speed cameras are the core of the HS-DIC system. They are capable of capturing the deformation sequence of an object during an explosion at a frame rate of 10,000 frames per second. These cameras have the ability to capture thousands of frames per second or even higher. High-speed light sources are used to provide stable and sufficient illumination during high-speed photography, ensuring that the camera can capture clear images; The synchronization unit is used to ensure that the high-speed camera works in sync with the explosion event or other test equipment so that image recording can begin at a precise point in time; An image acquisition card is used to transmit images captured by a high-speed camera to a computer system in real time. It has high-speed data transmission capabilities to match the frame rate of the high-speed camera. The computer system is used to control the high-speed camera, store image data, and run digital image correlation analysis software; DIC analysis software is used to process image sequences captured by high-speed cameras and calculate displacement and strain parameters of the object surface through digital image correlation algorithms. Protective devices are used to protect high-speed cameras and other electronic equipment from the debris, shock waves, and high temperatures generated by the explosion; Data storage devices are used to preserve raw image data and DIC analysis results for long-term storage. Specific implementation examples: The following is a detailed description of a specific embodiment of the multiphysics coupling test integration method and system for explosion fields provided by the present invention.

[0031] Example 1: Composition of the multiphysics coupling test system for explosion field: Infrared high-speed temperature measurement subsystem: includes infrared detector, signal amplifier, data acquisition card and high-speed data processing unit.

[0032] Pressure measurement subsystem: includes pressure sensor, signal conditioning circuit and data acquisition card.

[0033] Speed ​​measurement subsystem: includes a high-speed camera, image processing unit and data recording equipment.

[0034] Control and Data Processing Center: Used to coordinate the operation of various subsystems and the fusion and processing of data.

[0035] Test steps: 1. First, set up the explosion test site and install the infrared high-speed temperature measurement subsystem, pressure measurement subsystem, and velocity measurement subsystem.

[0036] 2. The control and data processing center calibrates and initializes each subsystem.

[0037] The explosive device is detonated, and all measurement subsystems are activated simultaneously.

[0038] 3. The infrared high-speed temperature measurement subsystem captures temperature changes during the explosion process in real time and transmits the data to the data processing center.

[0039] 4. The pressure measurement subsystem records the pressure wave generated by the explosion and transmits the data to the data processing center.

[0040] 5. The velocity measurement subsystem captures the velocity of the shock wave generated by the explosion using a high-speed camera, and the image processing unit analyzes the image data to calculate the velocity parameters.

[0041] 6. The data processing center receives data from each subsystem, performs synchronous processing and analysis, and generates multiphysics field coupling test results for the explosion field.

[0042] Data processing: Time synchronization technology is used to ensure the consistency of data collected by each subsystem in terms of time.

[0043] Data processing algorithms are used to denoise and calibrate infrared temperature measurement data, thereby improving the accuracy of temperature measurement.

[0044] Time series analysis of pressure and velocity data was performed to reveal the propagation characteristics and interactions of the explosion waves.

[0045] Example 2: Based on Example 1, the following steps and components are added: Add an optical measurement subsystem: used to measure the intensity of light radiation generated by the explosion, including photoelectric sensors, filters, and light intensity data acquisition cards.

[0046] Add the following to the test steps: 1. Simultaneously with detonation, activate the optical measurement subsystem to monitor the light radiation generated by the explosion in real time.

[0047] 2. The optical measurement subsystem transmits light intensity data to the data processing center.

[0048] The data processing now includes: performing time-resolution analysis on light intensity data, and combining this with temperature and pressure data to comprehensively assess the destructive power of the explosion.

[0049] Through the above embodiments, the present invention can realize real-time, high-speed, and high-precision coupled testing of multiple physics fields in an explosion field, providing effective technical support for explosion mechanism research, protection measure design, and effect evaluation.

[0050] In summary, this invention provides an efficient, accurate, and safe solution for multiphysics coupling testing of explosion fields, and has significant technical advantages and application value.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An integrated method for multi-physics field coupling testing of explosion fields, characterized in that: Includes the following steps: (1) High-speed imaging capture: Using a high-speed camera to image the explosion process in real time, capturing the trajectory of material movement, morphological changes and diffusion process generated at the moment of the explosion; (2) Temperature field monitoring: The temperature field during the explosion process is continuously monitored using infrared high-speed temperature measurement equipment, and temperature data of the explosion area is collected; (3) Pressure field measurement: The overpressure generated by the explosion is measured synchronously at multiple points using an overpressure sensor array. The response time of each sensor is less than 1 microsecond, and the range covers at least 0-1000 kPa to ensure that the pressure peak and its changes of the explosion wave can be accurately captured. (4) Structural deformation detection: Non-contact measurement of the dynamic deformation of the structure under explosion is performed using a high-speed digital image correlation (DIC) system or a high-precision strain gauge; (5) Data synchronization and fusion: Time synchronization processing of data collected by high-speed cameras, infrared high-speed temperature measurement equipment, overpressure sensor arrays and high-speed DIC systems or strain gauges; (6) Results analysis and optimization: Using the constructed multi-physics field coupling test model, the explosion test results are comprehensively analyzed and the test method is optimized.

2. The integrated method for multi-physics coupling testing of explosion fields according to claim 1, characterized in that: The formula for monitoring the temperature field is as follows: ； in, It's temperature. It is the initial temperature. It's a temperature change. It is a temperature distribution function. These are spatial coordinates. It is time; The formula for measuring the pressure field is as follows: ； in, It's pressure. It is the initial pressure. It's a change in pressure. It is a pressure distribution function. These are spatial coordinates. It's time.

3. The integrated method for multiphysics coupling testing of explosion fields according to claim 1, characterized in that: The method for constructing the multiphysics coupling test model is as follows: First, a core mathematical model incorporating the Navier-Stokes equations, energy conservation equations, and dynamic constitutive equations is established based on explosion dynamics, thermodynamics, and structural dynamics theories. Simultaneously, a microsecond-level spatiotemporal synchronization framework is constructed to achieve precise alignment of high-speed imaging, infrared temperature measurement, and pressure sensing data. Building upon this, a bidirectional physical field interaction mechanism is established using fluid-structure interaction, thermal softening effects, and dynamic mesh technology. Feature extraction and fusion of multimodal experimental data are achieved through convolutional neural networks, long short-term memory networks, and attention mechanisms. Furthermore, a heterogeneous computing architecture based on adaptive meshes and explicit-implicit hybrid algorithms is developed for efficient numerical solutions, combined with Monte Carlo methods for uncertainty quantification and error correction. Finally, a multiphysics coupling test model is formed.

4. An integrated system for multi-physics coupling testing of explosion fields, characterized in that: The system includes a high-speed camera testing subsystem, an infrared high-speed temperature measurement subsystem, an overpressure sensor testing subsystem, and a high-speed digital image correlation system; The high-speed camera testing subsystem includes a high-speed camera: providing high temporal resolution images for subsequent image analysis and object motion trajectory reconstruction; The infrared high-speed temperature measurement subsystem includes an infrared high-speed temperature measurement device: providing temperature data with high spatial resolution and high temporal resolution to help understand the thermal effects during the explosion process; The overpressure sensor testing subsystem includes an overpressure sensor: providing pressure change data over time for analyzing the dynamic characteristics and pressure distribution of the explosion wave; The high-speed digital image correlation system includes a high-speed DIC system: providing strain and deformation data of the object surface for evaluating the dynamic response and damage of the structure.

5. The integrated system for multiphysics coupling testing of explosion fields according to claim 4, characterized in that: The high-speed camera testing subsystem includes a high-speed camera, lens, light source, trigger unit, image storage device, data transmission interface, and image processing software. The high-speed camera is the core device of the subsystem, used to capture images of the explosion process at a frame rate of 10,000 frames per second. It records the material movement, morphological changes and diffusion process generated at the moment of the explosion, providing detailed time-series image data for subsequent analysis. The lens is used to focus and magnify the subject being photographed, ensuring that the high-speed camera can capture clear images. Different lenses have their focal length and field of view adjusted according to test requirements. The light source provides sufficient illumination for the high-speed camera in low-light environments, ensuring image brightness and contrast, thereby improving image quality. The triggering unit is used to synchronize the high-speed camera with the occurrence of the explosion event, ensuring that the camera can start recording images the instant the explosion occurs; The image storage device is used to store image data captured by a high-speed camera, and has a high write speed and large capacity to accommodate the large amount of data generated by the high-speed camera. The data transmission interface is used to quickly transmit image data captured by the high-speed camera to a computer and other storage devices. The image processing software is used to analyze image data captured by a high-speed camera, including image preprocessing, feature extraction, and motion analysis, to enable researchers to gain a deeper understanding of the explosion process.

6. The integrated system for multiphysics coupling testing of explosion fields according to claim 4, characterized in that: The infrared high-speed temperature measurement subsystem includes an infrared high-speed thermal imager, an infrared lens, a synchronization unit, a data recording unit, a data transmission interface, a temperature calibration device, analysis software, a cooling system, and a protective device. The infrared high-speed thermal imager is the core equipment of the subsystem. It can capture the infrared radiation emitted by the target object and convert it into an image of temperature distribution, and can record the rapid temperature changes during the explosion in real time. The infrared lens is specifically designed to focus infrared radiation, ensuring that the thermal imager can capture clear images of temperature distribution. The lens's focal length and field of view are adjusted according to the testing requirements. The synchronization unit is used to ensure that the infrared thermal imager works in sync with the explosion event and other testing equipment so that temperature data can be recorded at a precise time. The data recording units are used to store temperature data collected by the infrared thermal imager. These units have high-speed data writing capabilities to meet the needs of high-speed temperature measurement. The data transmission interface is used to quickly transmit data acquired by the thermal imager to a computer and other data processing devices. The temperature calibration device is used to calibrate the infrared thermal imager to ensure the accuracy and reliability of its measurement results; The analysis software is used to process and interpret the data collected by the infrared thermal imager, including the analysis of temperature distribution maps, hot spot detection, and temperature changes over time. The cooling system is used to keep the infrared detector at a low temperature, reduce noise, and improve the sensitivity and image quality of the thermal imager. The protective device is used to protect the infrared thermal imager from damage caused by debris, shock waves, and harmful gases generated by the explosion.

7. The integrated system for multiphysics coupling testing of explosion fields according to claim 4, characterized in that: The overpressure sensor testing subsystem includes an overpressure sensor, a signal conditioner, a data acquisition system, a synchronization unit, a data recording unit, a data transmission interface, a calibration device, a protective device, analysis software, and a sensor mounting bracket. The overpressure sensor is the core component of the subsystem. It can convert the pressure wave generated by the explosion into an electrical signal. These sensors have fast response time and wide range to adapt to the instantaneous high pressure generated by the explosion. The signal conditioner is used to amplify, filter, and convert the electrical signal output by the overpressure sensor to make it suitable for the data acquisition system. It also provides the necessary power to the sensor and includes sensor calibration functions. The data acquisition system is used to collect and process the signals output by the signal conditioner. It has a high sampling rate and can capture detailed information about the explosion pressure wave. The synchronization unit is used to ensure that the overpressure sensor works in sync with the explosion event and other testing equipment so that pressure data can be recorded at a precise time. The data recording units are used to store the pressure data collected by the data acquisition system. These units have large-capacity storage and high-speed data writing capabilities. The data transmission interface is used to quickly transmit the collected data to a computer and other data processing devices; The calibration device is used to calibrate the overpressure sensor to ensure the accuracy and repeatability of its measurement results; The protective device is used to protect the overpressure sensor from the effects of debris, shock waves, and high temperatures generated by the explosion. The analysis software is used to process and interpret the collected pressure data, including the analysis of pressure-time curves, the determination of peak pressure, and the assessment of pressure distribution. The sensor mounting bracket is used to fix the overpressure sensor in the test position to ensure that the sensor remains stable and does not move during the explosion.

8. The multiphysics coupling test integrated system for explosion fields according to claim 4, characterized in that: The high-speed digital image correlation system includes a high-speed camera, a high-speed light source, a synchronization unit, an image acquisition card, a computer system, DIC analysis software, protective devices, and data storage equipment. The high-speed camera is the core of the HS-DIC system. It can capture the deformation sequence of an object during the explosion at a frame rate of 10,000 frames per second. These cameras have the ability to capture thousands of frames per second or even higher. The high-speed light source is used to provide stable and sufficient illumination during high-speed photography, ensuring that the camera can capture clear images; The synchronization unit is used to ensure that the high-speed camera works synchronously with the explosion event or other test equipment so that image recording can begin at a precise time. The image acquisition card is used to transmit images captured by the high-speed camera to the computer system in real time. It has high-speed data transmission capability to match the frame rate of the high-speed camera. The computer system is used to control the high-speed camera, store image data, and run digital image correlation analysis software; The DIC analysis software is used to process image sequences captured by a high-speed camera and calculate the displacement and strain parameters of the object surface through digital image correlation algorithms. The protective device is used to protect high-speed cameras and other electronic equipment from the debris, shock waves and high temperatures generated by the explosion. The data storage device is used to store the original image data and DIC analysis results for a long period of time.

9. The multiphysics coupling test integrated system for explosion fields according to claim 4, characterized in that: The high-speed camera, infrared high-speed temperature measurement device, overpressure sensor, and high-speed DIC system mentioned therein are all commercially available and mature devices.

10. The multiphysics coupling test integration system for explosion fields according to claim 4, characterized in that: The infrared high-speed temperature measurement subsystem is used for non-contact, rapid measurement of temperature changes on the sample surface during an explosion.

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