Underwater explosion impact protection test device and method

Abstract

The invention discloses an underwater explosion impact protection test device and method, and the device comprises a floating impact platform, a deck structure, an anti-impact facility, and a dummy model. The floating impact platform is configured in a test water area; the deck structure is arranged on the floating impact platform and is used for simulating a ship deck; the anti-impact facility is arranged on the deck structure and is used for simulating deck protection; the dummy model is provided with a sensing detection module and is configured to be protected by the anti-impact facility. Based on the technical scheme disclosed by the invention, the impact response information on the dummy model can be recorded in real time so as to effectively test the protection performance of the anti-impact facility, the operation is simple, the application scene is wide, the method can be close to the actual underwater explosion impact environment, and the test reliability is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of human injury testing technology under explosion and impact, specifically to an underwater explosion impact protection testing device and method. Background Technology

[0002] The violent impact of an underwater explosion on the ship's hull causes the crew to experience the shock response transmitted from the vessel. When the shock response exceeds the limits that the human body can withstand, the crew inevitably suffers impact injuries. Shock-resistant structures can effectively attenuate the impact load, thereby protecting the lower limbs from or mitigating impact injuries.

[0003] In related technologies, the purpose of impact resistance facility protection performance testing is mainly to test the protection performance of impact resistance facilities. It mainly uses methods such as dual-wave impact machine and pendulum impact to simulate explosion impact, and uses animals for testing.

[0004] However, due to significant differences between animal anatomy, morphology, and materials science properties and those of humans, it is challenging to generalize data from animal experiments to humans. Furthermore, the methods used to simulate explosive impacts differ greatly from those used in real-world environments. These methods have specific requirements regarding the rigidity of the impact surface and environmental tolerances, and are typically only applicable to lightweight, small-sized devices. This not only limits their application but also raises questions about the reliability of the test results. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned technical deficiencies and to propose an underwater explosion impact protection test device and method, which solves the technical problems of limited application and insufficient test reliability in the existing underwater explosion impact protection test.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: In a first aspect, the present invention provides an underwater explosion impact protection testing device, comprising: A floating impact platform was deployed in the test water area; A deck structure, installed on the floating impact platform, is used to simulate a ship's deck; Impact-resistant facilities, installed on the deck structure, are used to simulate deck protection; and The dummy model is equipped with a sensing and detection module and is configured to be protected by the impact-resistant facility.

[0007] In some embodiments, at least two dummy models are provided, and each dummy model is respectively located at a different position on the deck structure.

[0008] In some embodiments, at least one of the dummy models is positioned on the deck structure in a simulated standing posture.

[0009] In some embodiments, the deck structure includes: A panel for supporting the impact-resistant structure and the dummy model; Multiple first crossbeams are fixedly installed at the bottom of the panel; and At least two second crossbeams are respectively disposed on opposite sides of the panel for connecting the floating impact platform.

[0010] In some embodiments, the testing apparatus further includes a plurality of fixed connectors, which are fixedly disposed on the floating impact platform and respectively fixedly connected to each of the second crossbeams.

[0011] In some embodiments, the testing apparatus further includes: Multiple acceleration sensors are respectively installed at different locations on the deck structure; and / or At least one low-frequency oscillator is located at the middle position of the deck structure.

[0012] In some embodiments, the plurality of acceleration sensors include: Multiple first acceleration sensors are respectively disposed on the periphery of the deck structure; and / or At least one second acceleration sensor is located at the midpoint of the deck structure.

[0013] In some embodiments, the sensing module is one or more of the following: a triaxial force-torque sensor, a pressure sensor, an inertial measurement unit, a strain sensor, a fiber optic strain sensor, a temperature sensor, and a displacement sensor.

[0014] In some embodiments, at least one positioning cable is also connected to the floating impact platform, which is used to fix the floating impact platform in the test water area.

[0015] Secondly, the present invention also provides an underwater explosion impact protection test method, which uses the underwater explosion impact protection test device as described in the first aspect, and includes the following steps: S1. Install the deck structure onto the floating impact platform and install impact-resistant facilities on the deck structure; S2. Based on the experimental requirements, determine the posture and position of each dummy model, and set each dummy model on the deck structure; S3. Install acceleration sensors and low-frequency oscillators at various preset positions on the deck structure; S4. Determine the relative position of the floating impact platform and the explosion point according to the test requirements, and fix the floating impact platform at the designated position in the test water area; S5. Simulate an underwater explosion at a designated location and collect impact response data.

[0016] Compared with the prior art, the present invention provides an underwater explosion impact protection test device and method, which sets up a floating impact platform in real waters and places a dummy model under the protection of the impact-resistant facilities on the deck structure. The dummy model is used to simulate the impact of underwater explosion load on the crew, and the impact response of the dummy model is detected by a sensing module.

[0017] In this way, the dummy model has a high degree of similarity to a human in terms of dynamic response. With the sensor detection module set inside the dummy model, the impact response information on the dummy model can be recorded in real time, so as to effectively test the protective performance of the impact-resistant facility. It is not only simple to operate and has a wide range of applications, but also can closely simulate the actual underwater explosion impact environment, which greatly improves the reliability of the test. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the underwater explosion impact protection test device in one embodiment of the present invention; Figure 2 This is an isometric view of the deck structure in one embodiment of the present invention; Figure 3a This is a schematic diagram of the first distribution of the acceleration sensors in one embodiment of the present invention; Figure 3b This is a schematic diagram of the second distribution of the acceleration sensor in one embodiment of the present invention; Figure 4a This is a schematic diagram of the first distribution of the low-frequency oscillator in one embodiment of the present invention; Figure 4b This is a schematic diagram of the second distribution of the low-frequency oscillator in one embodiment of the present invention; Figure 5 This is a schematic flowchart of an underwater explosion impact protection test method in one embodiment of the present invention.

[0019] Explanation of reference numerals in the attached drawings: 100, test water area; 1, floating impact platform; 2, deck structure; 21, panel; 22, first crossbeam; 23, second crossbeam; 231, connecting wing; 3, impact-resistant facilities; 4, dummy model; 5, positioning cable; 6, I-beam; 7, acceleration sensor; 71, first acceleration sensor; 72, second acceleration sensor; 8, low-frequency oscillator; 9, explosion point. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0021] In related technologies, the purpose of impact resistance facility protection performance testing is mainly to test the protection performance of impact resistance facilities. It mainly uses methods such as dual-wave impact machine and pendulum impact to simulate explosion impact, and uses animals for testing.

[0022] However, due to significant differences between animal anatomy, morphology, and materials science properties and those of humans, it is challenging to generalize data from animal experiments to humans. Furthermore, the methods used to simulate explosive impacts differ greatly from those used in real-world environments. These methods have specific requirements regarding the rigidity of the impact surface and environmental tolerances, and are typically only applicable to lightweight, small-sized devices. This not only limits their application but also raises questions about the reliability of the test results.

[0023] To address the aforementioned technical problems, this invention provides an underwater explosion impact protection test device and method, which is not only simple to operate and widely applicable, but also closely simulates the actual underwater explosion impact environment, greatly improving test reliability.

[0024] Please see Figure 1 , Figure 1 This is a schematic diagram of the overall structure of an underwater explosion impact protection test device in one embodiment of the present invention. The underwater explosion impact protection test device includes a floating impact platform 1, on which a deck structure 2, an impact-resistant facility 3, and a dummy model 4 are respectively installed.

[0025] In practical applications, the floating impact platform 1 can be placed entirely in the test water area 100 to simulate the real water environment; the deck structure 2 is set on the floating impact platform 1 and can be used to simulate the ship deck; the impact-resistant facilities 3 can be set on the deck structure 2 to simulate deck protection; and the dummy model 4 can be set on the deck structure 2 and placed under the protection of the impact-resistant facilities 3.

[0026] Based on this, by simulating an underwater explosion at a designated location in the test water area 100 and collecting relevant test data on the deck structure 2, the impact resistance facility 3, and the dummy model 4, the impact response of the dummy model 4 can be determined, thereby determining the protective performance of the impact resistance facility 3.

[0027] In one embodiment, the floating impact platform 1 is connected to at least one positioning cable 5. For example, two positioning cables 5 can be provided on the floating impact platform 1 so that the floating impact platform 1 can be fixed at a designated position in the test water area 100 as needed by the two positioning cables 5.

[0028] Based on this, the aforementioned deck structure 2 is installed on the floating impact platform 1 and can simulate a ship's deck.

[0029] In one embodiment, please refer to Figure 2 The deck structure 2 can be made of steel of a specified type as needed, and it may include a panel 21, a plurality of first crossbeams 22 and at least two second crossbeams 23. Each of the first crossbeams 22 and each of the second crossbeams 23 can be fixedly installed on the bottom surface of the panel 21.

[0030] For example, in one typical application scenario, the above-mentioned second crossbeam 23 can be set as two, and the two second crossbeams 23 can be symmetrically arranged on opposite sides of the panel 21, so that the second crossbeams 23 extend along the edge of the corresponding side of the panel 21 and are set perpendicular to the panel 21 as a whole; at this time, the upper side of the two second crossbeams 23 can be welded and fixed to the bottom surface of the panel 21 by welding.

[0031] Meanwhile, two, three, or more first crossbeams 22 can be provided as needed, and each first crossbeam 22 can be arranged side by side between the two second crossbeams 23. Taking the case where there are two first crossbeams 22 as an example, the two first crossbeams 22 can be symmetrically arranged on the bottom surface of the panel 21 along the vertical line connecting the two second crossbeams 23. The specific arrangement of each first crossbeam 22 on the bottom surface of the panel 21 can refer to the arrangement of the second crossbeams 23, and will not be repeated here.

[0032] At this time, after all the first crossbeams 22 and the second crossbeams 23 have been assembled, the two second crossbeams 23 are symmetrically arranged on opposite sides of the panel 21, and the two first crossbeams 22 are arranged side by side between the two second crossbeams 23, and each first crossbeam 22 can be arranged parallel to the second crossbeam 23.

[0033] The first crossbeam 22 can be used to improve the overall structural strength of the deck structure 2, while the second crossbeam 23 can be used to connect the floating impact platform 1. Therefore, the specific dimensions of the first crossbeam 22 and the second crossbeam 23 can be flexibly set as needed, and will not be elaborated here.

[0034] In one embodiment, please refer to Figure 2 To connect the aforementioned deck structure 2 with the floating impact platform 1, the floating impact platform 1 is also provided with multiple fixed connectors. These fixed connectors can be arranged in a one-to-one correspondence with the aforementioned second crossbeam 23, so that each second crossbeam 23 can be connected to the floating impact platform 1 through the corresponding fixed connector.

[0035] Specifically, when there are two second crossbeams 23, there can also be two fixed connectors. The two fixed connectors can be set at intervals on the floating impact platform 1. The bottom of each fixed connector can be fixedly connected to the floating impact platform 1, and its upper part can be fixedly connected to the bottom of the corresponding second crossbeam 23.

[0036] In one typical application scenario, the fixed connector can be an I-beam 6, the bottom of which can be welded to the floating impact platform 1.

[0037] To facilitate the connection between the I-beam 6 and the corresponding second crossbeam 23, a connecting wing 231 can be provided at the bottom of the second crossbeam 23. The connecting wing 231 can fit against the top surface of the corresponding I-beam 6, so that the connecting wing 231 and the corresponding I-beam 6 can be fixedly connected by bolts and / or welding. For example, the connecting wing 231 and the corresponding I-beam 6 can be connected by bolts and intermittent welding, which will not be elaborated here.

[0038] Based on the aforementioned deck structure 2, the aforementioned impact-resistant facility 3 can be further laid on the panel 21 of the deck structure 2. The specific type of the impact-resistant facility 3 can be flexibly set according to needs. In fact, since this test device is mainly used to test the protective performance of the impact-resistant facility 3, the impact-resistant facility 3 is actually the facility under test.

[0039] Based on this, a dummy model 4 can be placed on the deck structure 2 and placed under the protection of the impact-resistant facility 3 to simulate the protection situation of a real ship against a real person. It should be noted that, in order to improve the reliability of the test results, the specific parameters of the dummy model 4 used should preferably be as close as possible to the parameters of a real human body.

[0040] Thus, when an underwater explosion is initiated at a designated location in the test water area 100, the protective performance of the impact-resistant facility 3 can be determined by collecting impact response data from the deck structure 2, the impact-resistant facility 3, and the dummy model 4. Of course, in actual testing, the dummy model 4 can also be placed at different locations on the deck structure 2 to test the protective effect of the impact-resistant facility 3 at different locations.

[0041] In one embodiment, to further improve the reliability of the test results, the deck structure 2, the impact-resistant facilities 3, and the dummy model 4 can be set up in two or more sets as needed on the floating impact platform 1.

[0042] For example, in one typical application scenario, two sets of deck structures 2 can be installed side by side. The specific arrangement of each set of deck structures 2 can be referred to the previous text and will not be repeated here. After installation, the two sets of deck structures 2 can be attached side by side and spliced ​​together to form a larger simulated deck. At this time, a set of impact-resistant facilities 3 can be laid on each set of deck structures 2, and a dummy model 4 can be set at each set of impact-resistant facilities 3.

[0043] Of course, in other applications, more sets of deck structure 2, impact-resistant facilities 3, and dummy models 4 can be set up as needed. In this way, by setting up multiple sets of deck structure 2, a ship deck of a specified size can be realistically simulated, and by setting up multiple impact-resistant facilities 3 and dummy models 4, the dummy models 4 can be located at different positions on the entire deck structure 2, which facilitates testing the protective effect at different positions on the deck structure 2.

[0044] Furthermore, in other embodiments, the posture of the dummy model 4 during an underwater explosion can be flexibly set as needed. For example, when there are two or more dummy models 4, different simulated postures can be set for each dummy model 4; in this case, at least one dummy model 4 can be set at a designated position on the deck structure 2 in a simulated standing posture to simulate the situation of a real person being impacted by an explosion in a standing posture, and to obtain relevant impact response data.

[0045] Understandably, by setting different postures for each dummy model 4, it can not only meet the requirements for collecting impact response data, but also assist in analyzing the differences in impact response of people in different postures, thereby improving the comprehensiveness and reliability of the test results.

[0046] In one embodiment, to facilitate the acquisition of impact response data, the test device further includes multiple acceleration sensors 7 and / or at least one low-frequency oscillator 8; wherein each acceleration sensor 7 can be set at a different position on the deck structure 2, and the low-frequency oscillator 8 can be set at a designated position on the deck structure 2 as needed.

[0047] Specifically, depending on the location, the aforementioned plurality of acceleration sensors 7 may include a plurality of first acceleration sensors 71 and / or at least one second acceleration sensor 72. Each first acceleration sensor 71 may be located on the periphery of the deck structure 2, while the second acceleration sensor 72 may be located in the middle of the deck structure 2.

[0048] For example, in one typical application scenario, please refer to Figure 3a and 3bThe acceleration sensor 7 can be configured as five, consisting of four first acceleration sensors 71 and one second acceleration sensor 72. The four first acceleration sensors 71 can be respectively positioned at the four corners of the panel 21 and fixed to the corresponding second crossbeam 23, while the second acceleration sensor 72 can be positioned at the center of the bottom surface of the panel 21. At this time, the dummy model 4 can be correspondingly positioned at the center of the top of the panel 21 on the deck structure 2.

[0049] Similarly, please see Figure 4a and 4b The number of low-frequency oscillators 8 can also be flexibly set as needed. For example, when there is only one low-frequency oscillator 8, it can be set at the center of the bottom surface of the panel 21.

[0050] Understandably, in the underwater explosion impact protection test, the aforementioned first acceleration sensors 71 can measure the acceleration of the input deck structure 2, while the second acceleration sensor 72 can be used to measure the acceleration at the foot position of the dummy model 4. At the same time, the low-frequency oscillator 8 can measure the mid-to-low frequency impact environment (such as impact acceleration, amplitude, duration, spectral characteristics, etc.) during the impact test.

[0051] In one embodiment, to further acquire impact response data, the aforementioned dummy model 4 may also be equipped with a sensing and detection module (not shown in the figure). The sensing and detection module can be flexibly configured with its module type as needed. For example, it can be one or more of the following combinations: a triaxial force-torque sensor, a pressure sensor, an inertial measurement unit, a strain sensor, a fiber optic strain sensor, a temperature sensor, and a displacement sensor.

[0052] Taking the above-mentioned triaxial force-torque sensor as an example, the triaxial force-torque sensor can be installed inside the lower leg of the dummy model 4, and it can be used to measure the lower leg injury of the personnel under the action of underwater explosion impact load.

[0053] It is understandable that, depending on the different functions of the various detection modules, a combination of one or more of the aforementioned sensing modules can meet different measurement needs, thereby comprehensively collecting personnel impact response data.

[0054] Please see Figure 5 Based on the above-mentioned underwater explosion impact protection test device, this embodiment of the invention also provides an underwater explosion impact protection test method, including the following steps: S1. Install the deck structure 2 onto the floating impact platform 1, and install impact-resistant facilities 3 on the deck structure 2; S2. According to the test requirements, determine the posture and position of each dummy model 4, and set each dummy model 4 on the deck structure 2; S3. Install acceleration sensors 7 and low-frequency oscillators 8 at various preset positions on deck structure 2. S4. According to the test requirements, determine the relative position of the floating impact platform 1 and the explosion point 9, and fix the floating impact platform 1 at the designated position in the test water area 100. S5. Simulate an underwater explosion at a designated location and collect impact response data.

[0055] Specifically, in step S1, the deck structure 2 can be installed onto the floating impact platform 1 as needed. The specific installation method can be referred to the installation structure of the deck structure 2 on the floating impact platform 1 described above, and will not be repeated here. After the installation of the deck structure 2 is completed, the impact resistance facility 3 to be tested can be laid on the deck structure 2.

[0056] It should be noted that during the actual installation of the deck structure 2, one or more deck structures 2 can be installed as needed, and impact-resistant facilities 3 can be laid on each deck structure 2 to meet the testing requirements of specific scenarios, which will not be elaborated here.

[0057] In step S2, after the deck structure 2 and the impact-resistant facility 3 are installed, one or more dummy models 4 can be set up according to the test requirements. When multiple dummy models 4 are set up, each dummy model 4 can be set up at a different position on the deck structure 2, and each dummy model 4 can be set to a different posture. For example, one or more dummy models 4 can be set to a standing posture, or one or more dummy models 4 can be set to a squatting posture. The specific details will not be elaborated further.

[0058] In step S4, the relative position of the floating impact platform 1 and the explosion point 9 directly affects the impact of the underwater explosion on the floating impact platform 1 and its components. Therefore, in actual testing, the floating impact platform 1 can be fixed at a designated position in the test water area 100 using positioning cables 5. One or more underwater explosion points 9 can be set according to the different relative positions of the floating impact platform 1 and the explosion point 9 to test the explosion impact protection effect of the impact-resistant facility 3 on different explosion points 9.

[0059] When setting the relative position between the floating impact platform 1 and the explosion point 9, the parameters that can be referenced include the underwater depth D of the explosion point 9, the straight-line distance L between the explosion point 9 and the floating impact platform 1, the relative angle β between the explosion point 9 and the center of the bottom surface of the floating impact platform 1, the draft D0 of the floating impact platform 1, and the actual dimensions of the floating impact platform 1 (e.g., ...). Figure 1The dimensions shown (L0), etc., can be used to set up multiple tests by changing one or more of these parameters, which will not be elaborated here.

[0060] In step S6, during the actual test, after one data acquisition is completed, one or more of the above parameters can be changed, and one or more tests can be repeated to obtain multiple impact response data under different conditions, and comparative analysis can be performed to improve the comprehensiveness and reliability of the test results.

[0061] It should be noted that, based on the above-mentioned test device, the floating impact platform 1 can be set in real waters, and the dummy model 4 can be set under the protection of the impact-resistant facility 3 on the deck structure 2. The dummy model 4 is used to simulate the impact of underwater explosive load on the crew, and the impact response of the dummy model 4 is detected by the acceleration sensor 7, the low-frequency oscillator 8 and the sensing and detection module.

[0062] Thus, the dummy model 4 is highly similar to a human in terms of dynamic response. With the sensor detection module set inside the dummy model 4, the impact response information on the dummy model 4 can be recorded in real time to effectively test the protective performance of the impact-resistant facility 3. It is not only simple to operate and has a wide range of applications, but also closely resembles the actual underwater explosion impact environment, greatly improving the reliability of the test.

[0063] In the description of this application, it should be noted that the terms "upper" and "lower," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0064] It should be noted that in this application, relational terms such as "first" and "second" are used merely 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.

[0065] The specific embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made in accordance with the technical concept of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An underwater explosion impact protection testing device, characterized in that, include: A floating impact platform was deployed in the test water area; A deck structure, installed on the floating impact platform, is used to simulate a ship's deck; Impact-resistant facilities, installed on the deck structure, are used to simulate deck protection; and The dummy model is equipped with a sensing and detection module and is configured to be protected by the impact-resistant facility.

2. The underwater explosion impact protection test device according to claim 1, characterized in that, At least two dummy models are provided, and each dummy model is set at a different position on the deck structure.

3. The underwater explosion impact protection test device according to claim 2, characterized in that, At least one of the mannequins is positioned on the deck structure in a simulated standing posture.

4. The underwater explosion impact protection test device according to claim 1, characterized in that, The deck structure includes: A panel for supporting the impact-resistant structure and the dummy model; Multiple first crossbeams are fixedly installed at the bottom of the panel; and At least two second crossbeams are respectively disposed on opposite sides of the panel for connecting the floating impact platform.

5. The underwater explosion impact protection test device according to claim 4, characterized in that, The test apparatus also includes multiple fixed connectors, which are fixedly mounted on the floating impact platform and respectively fixedly connected to each of the second crossbeams.

6. The underwater explosion impact protection test device according to claim 1, characterized in that, The test apparatus also includes: Multiple acceleration sensors are respectively installed at different locations on the deck structure; and / or At least one low-frequency oscillator is located at the middle position of the deck structure.

7. The underwater explosion impact protection test device according to claim 6, characterized in that, The plurality of acceleration sensors include: Multiple first acceleration sensors are respectively disposed on the periphery of the deck structure; and / or At least one second acceleration sensor is located at the midpoint of the deck structure.

8. The underwater explosion impact protection test device according to claim 1, characterized in that, The sensing and detection module is one or more of the following: a triaxial force-torque sensor, a pressure sensor, an inertial measurement unit, a strain sensor, a fiber optic strain sensor, a temperature sensor, and a displacement sensor.

9. The underwater explosion impact protection test device according to claim 1, characterized in that, The floating impact platform is also connected to at least one positioning cable, which is used to fix the floating impact platform in the test water area.

10. A method for underwater explosion impact protection testing, characterized in that, The underwater explosion impact protection test device as described in any one of claims 1-9 includes the following steps: S1. Install the deck structure onto the floating impact platform and install impact-resistant facilities on the deck structure; S2. Based on the experimental requirements, determine the posture and position of each dummy model, and set each dummy model on the deck structure; S3. Install acceleration sensors and low-frequency oscillators at various preset positions on the deck structure; S4. Determine the relative position of the floating impact platform and the explosion point according to the test requirements, and fix the floating impact platform at the designated position in the test water area; S5. Simulate an underwater explosion at a designated location and collect impact response data.

Images