Impact Load Loading Enhancement Device and Method

Abstract

Shock load loading enhancement device and method, relating to the technical field of shock load loading. To solve the technical problems existing in the prior art, in the existing shock load loading technology, the energy utilization rate is relatively low, and when using the high-pressure gas stored in a pressure tank for loading, it is difficult to simulate a large-amplitude shock load. The technical solution provided by the present invention is: a shock load loading enhancement device, the device comprising: an ellipsoidal cavity and a loading cavity; the ellipsoidal cavity is a hollow ellipsoidal shape with a plane on the outer wall, the plane passing through one of the foci of the ellipsoid where the ellipsoidal shape is located; there is a through hole in the middle of the plane, and the plane is used to connect the loading cavity; one end of the loading cavity away from the plane is open; a pressure relief hole is also provided on the ellipsoidal cavity. It can be applied to the shock test of a structure to study the dynamic response of the structure under shock load.

Description

Technical Field

[0001] It relates to the technical field of impact load loading technology. Background Art

[0002] The impact test of a structure is one of the main research methods to study the true dynamic response of the structure under impact loads. Currently, traditional impact load loading methods include drop hammer tests, shock tube tests, explosion tests, etc. In particular, for loading tests with large amplitudes and small pulse widths, loading is generally carried out by means of explosive explosion. However, loading a large-amplitude impact load by means of explosive explosion often requires the explosive to be detonated with a large equivalent or at a close distance, resulting in low energy utilization rate. At the same time, when the scaled distance is too small, the detonation products will affect the load on the loading surface, making it difficult to estimate the load on the loading surface and difficult to carry out in actual engineering applications.

[0003] Patent document CN113218610B discloses a strong impact large pulse width impact load simulation device and its control method. In this patent document, explosives are arranged in a cubic box, and a structure is loaded by the explosion impact load. However, since the load is loaded by the primary shock wave of the explosion, the energy utilization rate of the explosive explosion is low. In order to achieve a large-amplitude spherical load loading, the explosive also needs to be detonated with a small scaled distance.

[0004] Patent document CN115479848A discloses a test device for simulating and loading an impact uniform load, which solves the problems that the existing method cannot simulate a uniform impact load and the structure is complex and cannot be reused. However, this device is loaded by stored high-pressure gas and cannot simulate large-amplitude impact loads. Summary of the Invention

[0005] In order to solve the technical problems existing in the prior art, in the existing impact load loading technology, the energy utilization rate is low, and it is difficult to simulate large-amplitude impact loads when loading with high-pressure gas stored in a pressure tank, the technical solution provided by the present invention is as follows:

[0006] An impact load loading enhancement device, the device includes:

[0007] An ellipsoidal cavity, and a loading cavity;

[0008] The ellipsoidal cavity is a hollow ellipsoidal shape with a plane on the outer wall, and the plane passes through one of the foci of the ellipsoid where the ellipsoidal shape is located;

[0009] There is a through hole in the middle of the plane, and the plane is used to connect the loading cavity;

[0010] One end of the loading cavity away from the plane is open;

[0011] The ellipsoidal cavity is also provided with a pressure relief hole.

[0012] Further, a preferred embodiment is provided, wherein the connection line between the plane and the other focus is perpendicular to the plane.

[0013] Further, a preferred embodiment is provided, wherein the loading cavity is trapezoidal.

[0014] Further, a preferred embodiment is provided, wherein the top surface with a smaller surface area of the loading cavity is connected to the plane.

[0015] Further, a preferred embodiment is provided, wherein the loading cavity and the ellipsoidal cavity are connected by a flange.

[0016] Further, a preferred embodiment is provided, wherein the outer wall of the ellipsoidal cavity is provided with a stiffening rib structure.

[0017] Further, a preferred embodiment is provided, wherein in the ellipsoidal cavity, the position of the other focus is used to set the explosive.

[0018] The method for enhancing the impact load loading includes:

[0019] The step of calculating the approximate size of the impact load loading enhancement device according to the preset size of the structure to be loaded;

[0020] The step of refining the specific structural dimensions of the impact load loading enhancement device and calculating the explosive equivalent according to the approximate size of the impact load loading enhancement device, the preset load peak value and the pulse width.

[0021] A computer storage medium for storing a computer program, when the computer program is read by a computer, the computer executes the method.

[0022] A computer includes a processor and a storage medium, when the processor reads the computer program stored in the storage medium, the computer executes the method.

[0023] Compared with the prior art, the beneficial effects of the technical solution provided by the present invention are as follows:

[0024] The impact load loading enhancement device provided by the present invention, the impact load loading enhancement device and its control method using the multi-directional shock wave focusing principle solve the problems that the existing pressure tank loading device is difficult to simulate a large-amplitude load, and the explosive shock load simulation method requires a large explosive equivalent or a short-distance initiation to simulate a large-amplitude load.

[0025] The impact load loading enhancement device provided by the present invention focuses the explosive energy from a distant focal point to a near focal point through the principle of focusing shock waves in multiple directions within an ellipsoid, and loads the structure to be loaded with the equivalent explosive energy at the near focal point, so that the explosive is far away from the structure to be loaded to increase the load pulse width.

[0026] Compared with the traditional explosive explosion method, the impact load loading enhancement device provided by the present invention can make better use of the explosive energy, achieving the effect of high load peak values with small equivalent explosives and detonation at a relatively long distance.

[0027] Due to the focusing effect of the ellipsoid structure on the explosive energy, the impact load loading enhancement device provided by the present invention avoids the problem that when the proportional distance of explosive explosion is too small, the detonation products will affect the load on the loading surface, resulting in difficulty in estimating the load on the loading surface.

[0028] Compared with the pressure tank loading device, the impact load loading enhancement device provided by the present invention can generate a larger amplitude of impact load.

[0029] The impact load loading enhancement device provided by the present invention can be applied to the impact test of structures to study the dynamic response of structures under impact loads. Description of the Drawings

[0030] Figure 1 is a three-dimensional schematic diagram of the impact load loading enhancement device;

[0031] Figure 2 is Figure 1 the front elevation sectional view of

[0032] wherein, 1 represents the ellipsoidal cavity, 2 represents the loading cavity, and 3 represents the explosion vent hole;

[0033] Figure 3 is a schematic diagram of a triangular load;

[0034] Figure 4 is a schematic diagram of the combined structure of the impact load loading enhancement device;

[0035] Figure 5 is a schematic diagram of the numerical calculation load curve of the center measurement point of the structure to be loaded. Detailed Embodiments

[0036] To more clearly demonstrate the advantages and beneficial effects of the technical solution provided by the present invention, the technical solution provided by the present invention will be further described in detail below with reference to the drawings. Specifically:

[0037] Embodiment 1. This embodiment provides an impact load loading enhancement device, and the device includes:

[0038] Ellipsoidal cavity, and loading cavity;

[0039] The ellipsoidal cavity is a hollow ellipsoidal shape with a plane on its outer wall, and the plane passes through one of the foci of the ellipsoid where the ellipsoidal shape is located;

[0040] There is a through hole in the middle of the plane, and the plane is used to connect the loading cavity;

[0041] One end of the loading cavity away from the plane is open;

[0042] A pressure relief hole is also provided on the ellipsoidal cavity.

[0043] Embodiment 2: This embodiment further limits the impact load loading enhancement device provided in Embodiment 1. The connection line between the plane and the other focus is perpendicular to the plane.

[0044] Embodiment 3: This embodiment further limits the impact load loading enhancement device provided in Embodiment 1. The loading cavity is in a trapezoidal shape.

[0045] Embodiment 4: This embodiment further limits the impact load loading enhancement device provided in Embodiment 3. The top surface of the loading cavity with a smaller surface area is connected to the plane.

[0046] Embodiment 5: This embodiment further limits the impact load loading enhancement device provided in Embodiment 1. The loading cavity and the ellipsoidal cavity are connected by a flange.

[0047] Embodiment 6: This embodiment further limits the impact load loading enhancement device provided in Embodiment 1. A reinforcing rib structure is provided on the outer wall of the ellipsoidal cavity.

[0048] Embodiment 7: This embodiment further limits the impact load loading enhancement device provided in Embodiment 1. In the ellipsoidal cavity, the position of the other focus is used to set the explosive.

[0049] Embodiment 8: This embodiment provides an impact load loading enhancement method, including:

[0050] The step of calculating the approximate size of the impact load loading enhancement device according to the preset size of the structure to be loaded;

[0051] The step of refining the specific structural dimensions of the impact load loading enhancement device and calculating the explosive equivalent according to the approximate size of the impact load loading enhancement device, the preset load peak value and pulse width.

[0052] Embodiment 9. This embodiment provides a computer storage medium for storing a computer program. When the computer program is read by a computer, the computer executes the method provided in Embodiment 8.

[0053] Embodiment 10. This embodiment provides a computer, including a processor and a storage medium. When the processor reads the computer program stored in the storage medium, the computer executes the method provided in Embodiment 8.

[0054] Embodiment 11. In combination with Figure 1-2 this embodiment is described. This embodiment clearly and completely describes the above-provided technical solution through specific examples. Specifically:

[0055] By adopting the principle of focusing shock waves in multiple directions inside an ellipsoid, this embodiment aims to propose a large-magnitude impact load loading enhancement device and its control method, solving the problems that existing pressure tank loading devices are difficult to simulate large-magnitude loads, and the explosive shock load simulation method requires a large amount of explosive equivalent or detonation at a relatively close distance to simulate large-magnitude loads.

[0056] The technical solution provided in this embodiment is as follows: This embodiment provides a large-magnitude impact load loading enhancement device and its control method using the principle of multi-directional shock wave focusing. The load loading device includes an ellipsoidal cavity 1 and a loading cavity 2. One focus of the ellipsoidal cavity 1 is the placement position of the explosive, and the other focus is a perforated circular plate. At the perforated circular plate, the ellipsoidal cavity 1 is connected to the loading cavity 2 to form a complete box structure; the structure to be loaded is connected to the other side of the loading cavity 2 by bolts.

[0057] The ellipsoidal cavity 1 and the loading cavity 2 are provided with flange structures at the openings for bolt connection; at the same time, a stiffening rib structure is provided outside the ellipsoidal cavity 1 to ensure the structural strength.

[0058] A pressure relief hole 3 is provided above the focus of the ellipsoidal cavity 1 where the explosive is placed. During the test, the explosive can be placed through the pressure relief hole 3, and at the same time, the detonation wire can extend to the outside of the loading device through the pressure relief hole 3.

[0059] This embodiment also provides an impact load loading control method using the principle of multi-directional shock wave focusing, which is characterized in that the method includes the following steps:

[0060] Step 1: Determine the approximate size parameters of the ellipsoidal cavity 1 and the loading cavity 2 according to the size of the structure.

[0061] Step 2: Calculate the explosive equivalent according to the estimated load peak and pulse width, and determine the structural parameters of the ellipsoidal cavity 1 and the loading cavity 2.

[0062] Step 3: Place the loading device at a test site with explosion-proof qualifications;

[0063] Step 4: Install the structure to be loaded on the other side of the loading cavity 2 using bolts and seal it with a rubber gasket;

[0064] Step 5: Personnel arrange explosives;

[0065] Step 6: Personnel evacuate from the loading device;

[0066] Step 7: Detonate the explosives to complete the loading.

[0067] For an impact load loading enhancement device and its control method using the multi-directional shock wave focusing principle according to the above embodiments of this implementation manner, the following additional technical features may also be included:

[0068] In step 1, the ellipsoidal half-width b of the ellipsoidal cavity 1 should be greater than the radius R of the loading cavity 2, and the radius R of the loading cavity 2 should not be less than the radius or half-width of the structure to be loaded.

[0069] In step 2, simplify the load on the loading surface to a triangular load. For TNT explosives, the pulse width τ of the triangular load can be calculated by the following formula:

[0070]

[0071] In the formula, m e is the mass of the explosive, and H is the distance that any acoustic ray in the loading device reaches the center of the loading surface through elliptical reflection, which can be calculated by the following formula:

[0072] H = 2a + h,

[0073] In the formula, a is the semi-major axis of the ellipsoid, and h is the height of the loading cavity.

[0074] For TNT explosives, the peak value P r of the triangular load can be calculated by the following formula:

[0075]

[0076] In the formula, b is the ellipsoidal half-width; c is the semi-focal length of the ellipsoid. When the semi-major axis a and semi-width b of the ellipsoid are determined, the semi-focal length c of the ellipsoid is determined; R is the radius of the loading surface; P0 is the ambient pressure under the undisturbed condition; ρ0 and C0 are the ambient air density and ambient sound speed under the undisturbed condition respectively; P f1 is the overpressure when the shock wave propagation acoustic ray length is H. It can be calculated by the following formula:

[0077]

[0078] When designing the structure of the loading device and the test conditions, it can be divided into the following steps:

[0079] ① Design the half-width b of the ellipsoidal cavity 1, the opening radius r of the ellipsoidal cavity, and the radius R of the loading cavity 2 according to the size of the structure to be loaded. The selected half-width b of the ellipsoidal cavity 1 should be greater than the radius R of the loading cavity 2. The radius R of the loading cavity 2 should not be less than the radius or half-width of the structure to be loaded. The opening radius r of the ellipsoidal cavity should not be greater than half of the radius R of the loading cavity 2.

[0080] ② Initially determine the explosive mass m e , the semi-major axis a of the ellipsoid, and the height h of the loading cavity; then the focal length c of the ellipsoid can be determined.

[0081] ③ Verify whether the parameters selected in steps ① and ② are appropriate according to the peak value of the target load. If the parameters selected in steps ① and ② cannot meet the peak value of the target load, the parameters selected in steps ① and ② need to be adjusted appropriately, and step ③ is repeated.

[0082] The beneficial effect of this embodiment is that based on the principle of shock wave focusing in multiple directions inside the ellipsoid, the explosive energy is focused from a distant focus to a near focus, and the structure to be loaded is loaded by the explosive energy at the near focus, so that the explosive is far away from the structure to be loaded to increase the load pulse width; due to the focusing effect of the ellipsoidal structure on the explosive energy, this embodiment can make better use of the explosive energy, achieving the effect of a small equivalent explosive and a relatively long distance detonation to reach a high load peak value; at the same time, it avoids the problem that when the proportional detonation distance of the explosive explosion is too small, the detonation products will affect the load on the loading surface, resulting in difficulty in estimating the load on the loading surface.

[0083] This embodiment is different from other shock load loading test devices and methods. Compared with the direct explosion test, this embodiment can make better use of the explosion energy, so that the explosive equivalent can be smaller and the distance between the explosive and the structure can be farther; compared with the pressure tank loading device, this embodiment can generate a larger amplitude shock load.

[0084] The fields applicable to this embodiment also include: shock wave load analysis in restricted spaces, shock wave load enhancement and other technical fields.

[0085] Embodiment Twelve, combined with Figure 3-5 Describe this embodiment. This embodiment provides a specific experimental example for the technical solution provided in Embodiment Eleven, as follows:

[0086] Step 1, determine the approximate size parameters of the ellipsoidal cavity 1 and the loading cavity 2 according to the size of the structure.

[0087] Step 2: Calculate the explosive equivalent based on the estimated load peak and pulse width, and determine the structural parameters of the ellipsoidal box body 1 and the loading cavity 2;

[0088] Step 3: Place the loading device at a test site with explosion qualification;

[0089] Step 4: Install the structure to be loaded on the other side of the loading cavity using bolts and seal it with a rubber gasket;

[0090] Step 5: Personnel arrange explosives;

[0091] Step 6: Personnel evacuate from the loading device;

[0092] Step 7: Detonate the explosives to complete the loading.

[0093] In Step 1, the semi-width b of the ellipsoidal cavity 1 should be greater than the radius R of the loading cavity 2, and the radius R of the loading cavity 2 should not be less than the radius or semi-width of the structure to be loaded.

[0094] In Step 2, the load received at the loading surface is simplified to a triangular load, as Figure 3 shown.

[0095] Analyze the structure of the loading device of this embodiment to obtain a schematic diagram as Figure 4 shown.

[0096] For the simplified triangular load pulse width, it can be calculated by the following formula:

[0097]

[0098] In the formula, m e is the mass of TNT explosive, and H is the distance that any sound ray in the loading device passes through the elliptical reflection to reach the center of the loading surface, which can be calculated by the following formula:

[0099] H = 2a + h,

[0100] In the formula, a is the semi-major axis of the ellipsoid, and h is the height of the loading cavity.

[0101] For the simplified triangular load peak, it can be deduced and calculated through the following steps:

[0102] When calculating the load peak on the loading surface of the loading device of this embodiment, the acoustic power equivalence principle is used. It is considered that in the ellipsoid, after the explosive is detonated at the focus, an equivalent explosion source will be formed at the other focus, and the acoustic power of this equivalent explosion source is equal to that of the original explosion source.

[0103] For the original explosion source, according to "Hull Vibration", the acoustic power of the original explosion source is W p which can be calculated by the following formula:

[0104]

[0105] In the formula, ρ0 and C0 are the environmental air density and environmental sound speed under the undisturbed condition; P f1 is the overpressure when the sound ray length of the shock wave propagation is H; among them, P f1 can be calculated by the Henrich formula as follows:

[0106]

[0107] For the equivalent explosion source, the ellipsoidal cavity of the loading device in this embodiment is not a complete ellipsoid. Therefore, calculated by the proportional relationship, the relationship between the sound power of the equivalent explosion source and the sound power of the original explosion source is:

[0108]

[0109] Among them, R v is the radius of the spherical shock wave front, and θ is the critical angle of the explosive energy utilization, which can be calculated by the following formula

[0110]

[0111] In the formula, b is the semi-width of the ellipsoid, and c is the semi-focal length of the ellipsoid.

[0112] Due to the influence of the hemispherical explosion cavity structure form, only part of the sound power of the equivalent explosion source contributes to the load on the loading surface, as shown in the schematic diagram of the geometric structure of the loading device in this embodiment. In the figure, is the critical angle of the effective sound power of the equivalent explosion source, and thus the sound power W on the loading surface can be obtained load is

[0113]

[0114] Among them, can be calculated by the following formula:

[0115]

[0116] In the formula, R is the radius of the loading surface.

[0117] The peak value P of the incident shock wave overpressure acting on the loading surface is obtained f2 is

[0118]

[0119] Furthermore, the peak value P of the incident shock wave overpressure on the loading surface f2 can be expressed as:

[0120]

[0121] The load on the loading surface is a positive reflected shock wave load, which can be calculated by the following formula, that is, the peak value of the simplified triangular load.

[0122]

[0123] In the formula, P0 is the ambient pressure under the undisturbed condition.

[0124] When designing the structure of the loading device and the test conditions, it can be divided into the following steps:

[0125] ① Design the half-width b of the ellipsoidal cavity 1, the opening radius r of the ellipsoidal cavity, and the radius R of the loading cavity 2 according to the size of the structure to be loaded. The selected half-width b of the ellipsoidal cavity 1 should be greater than the radius R of the loading cavity 2. The radius R of the loading cavity 2 should not be less than the radius or half-width of the structure to be loaded, and the opening radius r of the ellipsoidal cavity should not be greater than half of the radius R of the loading cavity 2.

[0126] ② Initially determine the explosive mass m e , the semi-major axis a of the ellipsoid, and the height h of the loading cavity; then the focal length c of the ellipsoid can be determined.

[0127] ③ Verify whether the parameters selected in steps ① and ② are appropriate according to the target load peak. If the parameters selected in steps ① and ② cannot meet the target load peak, the parameters selected in steps ① and ② need to be adjusted appropriately, and step ③ is repeated.

[0128] The following further illustrates an impact load loading enhancement device and its control method using the multi-directional shock wave focusing principle proposed in the embodiments of the present embodiment through a specific embodiment.

[0129] There is a structure with a half-width of 90 mm. A triangular impact load is applied to it, with a load peak of 30 MPa and a load pulse width of 1.3 ms. Design the structure of the loading device and its test conditions according to the structure to be loaded and the target load. The steps are as follows:

[0130] ①. Design the half-width of the ellipsoidal cavity 1, the opening radius r of the ellipsoidal cavity, and the radius R of the loading cavity 2 according to the size of the structure to be loaded. Select the half-width b of the ellipsoidal cavity to be 350 mm, the opening radius r of the ellipsoidal cavity to be 50 mm, and the radius R of the loading cavity to be 100 mm.

[0131] ②. Initially determine the explosive mass m e = 0.56 kg, the semi-major axis a of the ellipsoid is 500 mm, the height h of the loading cavity is 150 mm, and then the focal length c of the ellipsoid can be determined to be 357 mm.

[0132] ③. Verify the parameters in step ② according to the target peak of 30 MPa, and obtain the load peak Pr = 16.1 MPa, which does not meet the target load. Therefore, the parameters in steps ① and ② are appropriately modified repeatedly.

[0133] Repeat ①. Select the half-width b of the ellipsoidal cavity as 300 mm, the opening radius r of the ellipsoidal cavity as 50 mm, and the radius R of the loading cavity as 100 mm.

[0134] Repeat ②. According to the target pulse width of 1.3 ms, initially determine the explosive mass m e = 0.74 kg, the semi-major axis a of the ellipsoid as 500 mm, the height h of the loading cavity as 100 mm, and then the ellipsoidal focal length c = 400 mm can be determined.

[0135] Repeat ③. According to the target peak value, obtain the load peak value P r = 30.0 MPa, which meets the target load. The parameters used are the structural design parameters of the test loading device and the test condition setting parameters.

[0136] Perform numerical simulation calculations according to the parameters determined above, and the load curve of the center measurement point of the structure to be loaded is as Figure 5 shown. The comparison between the obtained load parameters and the target load is shown in the following table:

[0137] Table 1 Comparison between the numerical calculation load parameters and the target load parameters of the center measurement point of the structure to be loaded

[0138] Target load parameter Numerical simulation calculation load parameter Error Peak load / MPa 30.0 32.8 8.5％ Load pulse width / ms 1.3 1.38 5.8％

[0139] The technical solutions provided by the present invention are further described in detail through several specific implementation manners to highlight the advantages and beneficial effects of the technical solutions provided by the present invention. However, the above-mentioned several specific implementation manners are not used as limitations to the present invention. Any reasonable modifications and improvements, combinations of implementation manners, and equivalent replacements based on the spirit and principle of the present invention shall be included within the protection scope of the present invention.

[0140] In the description of this specification, it is only a preferred embodiment of the present invention and cannot be used to limit the scope of rights of the present invention; in addition, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or N embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "N" is at least two, such as two, three, etc., unless otherwise specifically defined. Any process or method description shown in the flowchart or described in other ways herein can be understood as representing a module, segment, or part of code including one or more N executable instructions for implementing a customized logic function or process, and the scope of the preferred embodiments of the present invention includes additional implementations, where the functions may be executed in a substantially simultaneous manner or in the reverse order according to the functions involved, rather than in the order shown or discussed, which should be understood by those skilled in the art to which the embodiments of the present invention belong. The logic and / or steps represented in the flowchart or described in other ways herein, for example, can be considered as a sequenced list of executable instructions for implementing a logical function, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, apparatus, or device (such as a computer-based system, a system including a processor, or other systems that can fetch and execute instructions from the instruction execution system, apparatus, or device), or in combination with these instruction execution systems, apparatus, or devices. For the purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. More specific examples (non-exhaustive list) of computer-readable media include the following: an electrical connection portion (electronic device) having one or N wirings, a portable computer disk cartridge (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM).In addition, the computer-readable medium can even be paper or other suitable media on which the program can be printed, because the program can be obtained electronically, for example, by optically scanning the paper or other media, followed by editing, interpretation or other appropriate processing when necessary, and then stored in a computer memory. It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above embodiments, the N steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or a combination of the following techniques well known in the art can be used: discrete logic circuits with logic gate circuits for implementing logical functions on data signals, application specific integrated circuits with appropriate combinational logic gate circuits, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.

[0141] Those of ordinary skill in the art can understand that all or part of the steps carried by the methods in the above embodiments can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium. When the program is executed, it includes one or a combination of the steps of the method embodiments. In addition, in each of the embodiments of the present invention, the functional units can be integrated into a processing module, or each unit can exist physically alone, or two or more units can be integrated into one module. The above integrated modules can be implemented in the form of hardware or in the form of software function modules. When the above integrated module is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

Claims

1. Impact load loading enhancement device, characterized in that, The device comprises: Ellipsoid cavity, and loading cavity; The ellipsoidal cavity is a hollow ellipsoid with a plane on the outer wall, and the plane passes through one of the foci of the ellipsoid in which the ellipsoidal cavity is located; There is a through hole in the middle of the plane, and the plane is used to connect to the loading cavity; The loading cavity is open at one end away from the plane; The ellipsoidal cavity is also provided with an explosion relief hole.

2. The impact load enhancement device according to claim 1, characterized in that: A line connecting the plane and the other focus is perpendicular to the plane.

3. The impact load loading enhancement device according to claim 1, characterized in that, The loading cavity is a terraced type.

4. The impact load enhancement device according to claim 3, characterized in that: The top surface of the loading cavity with a smaller surface area is connected to the plane.

5. The impact load loading enhancement device according to claim 1, wherein The loading cavity is connected to the ellipsoidal cavity via a flange.

6. The impact load loading enhancement device according to claim 1, characterized in that, The outer wall of the ellipsoidal cavity is provided with a reinforcing rib structure.

7. The impact load loading enhancement device according to claim 1, wherein In the ellipsoidal cavity, the position of another focus is used to set explosives.

8. Method for enhancing impact load loading, characterized in that, include: The step of calculating the approximate size of the impact load loading enhancement device according to claim 1 based on the preset size of the structure to be loaded; According to the approximate size of the impact load loading enhancement device and the preset load peak and pulse width, the specific structural size of the impact load loading enhancement device and the steps for calculating the explosive equivalent are refined.

9. A computer storage medium for storing a computer program, characterized in that When the computer program is read by a computer, the computer executes the method according to claim 8.

10. A computer, comprising a processor and a storage medium, characterized in that, When the processor reads the computer program stored in the storage medium, the computer executes the method according to claim 8 .

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