A cascade sheet energetic material planar wave loading device and generation method

Abstract

The application discloses a kind of cascaded sheet energetic material plane wave loading device and generation method, solve the technical problem that traditional plane wave loading device cannot flexibly regulate and control load and structure parameter and export controllable long pulse width plane shock wave of hundred milliseconds level and above.The application includes sequentially connected test section, first-stage loading filter section and third-stage loading section and tail section;First-stage loading filter section is arranged on test section and rubber sealing ring is arranged between them;The inside of first-stage loading filter section is provided with filter grid, and the filter through holes on each filter grid are arranged in axial direction and have consistent opening rate;Tail section is provided with pressure relief detonator;Test section, first-stage loading filter section, third-stage loading section and tail section jointly constitute loading cavity;Direct connection type energetic structure is fixed in third-stage loading section by annular support.

Description

Technical Field

[0001] This invention relates to a plane wave loading device and method, specifically to a cascaded thin-film energetic material plane wave loading device and generation method, used to realize the synchronous excitation of multi-stage thin-film energetic materials and the generation of long pulse width plane loads. Background Technology

[0002] Plane wave loading technology is a core method for testing the dynamic mechanical properties of materials and simulating weapon effects. Its core objective is to provide a one-dimensional, uniform, and controllable planar shock wave load to verify the mechanical response of a target under plane wave loading. Thin sheet energetic materials possess high areal density uniformity and shape plasticity. After excitation, the propagation direction of the shock wave generated is parallel to the propellant surface, and the energy is released uniformly in a planar manner. The effect on the surrounding medium is mainly in-plane shock wave loading, with a lower uniform peak pressure than a concentrated charge of the same mass. It has the characteristics of better load surface uniformity, larger effective area, and more stable load duration, which can provide better planar impact loading conditions for the dynamic mechanical property testing and research of structural response.

[0003] Therefore, thin-sheet energetic materials are ideal energy sources for plane wave loading. By designing reasonable charge configurations and detonation methods, plane shock waves that meet experimental requirements can be generated. With the technological development in cutting-edge research and engineering applications such as shock wave physics and structural blast resistance testing, there is a demand for high peak value, large impulse, and long pulse width for shock wave loads. Therefore, a loading device and loading scheme that integrates load generation, parameter detection, and can realize the synchronous excitation of multi-stage thin-sheet energetic materials to generate long pulse width plane loads is needed.

[0004] Existing traditional plane wave generators mostly employ wedge-shaped charge schemes or diaphragm-wave impedance matching schemes, relying on detonation drive, gas gun loading, electromagnetic drive, etc., which have the following limitations in generating long pulse width, high peak plane loads:

[0005] (1) Insufficient synchronization and reliability of initiation. The uniform loading effect of thin sheet energetic materials is highly dependent on the synchronous triggering of multiple initiation points. Existing initiation systems mostly use discrete detonating cord connections, resulting in large errors in the detonation length.

[0006] (2) Low flexibility in load parameter adjustment. The loading distance, energy density, device structure and size, and charge quantity of the thin sheet energetic material in the existing loading device are mostly fixed designs, making it difficult to flexibly adjust the load amplitude and loading pulse width according to actual needs, and thus unable to match different assessment requirements.

[0007] (3) Insufficient load pulse width. Detonation loading methods are limited by the propagation speed of the detonation wave and the material of the flyer, making it difficult to achieve a pulse width of more than milliseconds. Non-detonation loading methods are prone to problems such as excessively rapid attenuation of peak pressure and severe waveform distortion, making it difficult to stably control the output shock wave waveform with a long pulse width.

[0008] (4) Low integration and poor repeatability. Most existing plane wave loading devices are designed with a split structure, which has a low degree of integration, resulting in large deviations in the repeatability and stability of the experiment. Summary of the Invention

[0009] The purpose of this invention is to solve the technical problem that traditional plane wave loading devices cannot flexibly adjust the load and structural parameters and output controllable long pulse width plane shock waves at the level of hundreds of milliseconds or above, and to provide a cascaded thin-sheet energetic material plane wave loading device and generation method.

[0010] To achieve the above objectives, the technical solution provided by this invention is as follows:

[0011] A cascaded thin-film energetic material plane wave loading device, characterized by:

[0012] It includes a test segment 1, a first-stage loading filter segment 2 and a third-stage loading segment 4 connected in sequence, and a tail segment 5 located at the end of the third-stage loading segment 4 away from the test segment 1;

[0013] Test section 1 is used to test plane wave loads;

[0014] The first-stage loading filter section 2 is set on the test section 1, and a rubber sealing ring 203 is provided between the connection position of the test section 1 and the first-stage loading filter section 2;

[0015] The first-stage loading filter section 2 is equipped with at least two filter grids with filter through holes. The filter through holes on each filter grid are staggered and have the same opening ratio, which is used to block the direct jet of explosion products.

[0016] A pressure relief detonator 502 is provided on the end face of the tail section 5 away from the first-stage loading filter section 2;

[0017] Test section 1, first-stage loading filter section 2, third-stage loading section 4, and tail section 5 together constitute the loading cavity;

[0018] The interior of the third-stage loading section 4 is provided with a direct-connection energetic structure 10, which includes a direct-connection sheet energetic material 14 and a direct-connection soft explosive cord 16.

[0019] The direct-connected sheet-like energetic material 14 is fixed in the third-stage loading section 4 by the annular bracket 11; one end of the direct-connected flexible detonating cord 16 passes through the pressure relief detonator 502 and extends into the loading cavity, and is attached to the direct-connected sheet-like energetic material 14 to generate plane wave load.

[0020] Furthermore, a first-stage flexible explosive cable mounting groove 202 is provided radially on one end face of the first-stage loading filter section 2 near the third-stage loading section 4;

[0021] The first-stage loading filter section 2 is equipped with a bent energetic structure 9, which includes a bent sheet energetic material 15 and a bent flexible explosive cable 17. The bent sheet energetic material 15 is fixed in the first-stage loading filter section 2 by an annular bracket 11 and is located between the filter grid and the direct-connection energetic structure 10. One end of the bent flexible explosive cable 17 passes through the first-stage flexible explosive cable mounting groove 202 and extends into the loading cavity. After being bent, it fits with the bent sheet energetic material 15 to generate a plane wave load.

[0022] Furthermore, it also includes at least one secondary loading segment 3;

[0023] The secondary loading section 3 is located between the primary loading and filtering section 2 and the tertiary loading section 4, and is used to extend the length of the loading cavity to form a cascade of sheet-like energetic materials; the end face of the secondary loading section 3 near the tertiary loading section 4 is provided with a secondary flexible explosive cable mounting groove 303 in the radial direction;

[0024] The secondary loading section 3 is equipped with a bent energetic structure 9, wherein the bent sheet energetic material 15 is fixed in the secondary loading section 3 by a ring bracket 11, and one end of the bent flexible explosive cable 17 passes through the secondary flexible explosive cable mounting groove 303 and extends into the loading cavity, and is bent and attached to the bent sheet energetic material 15 to generate a plane wave load.

[0025] Furthermore, the end face of the first-stage loading filter section 2 near the second-stage loading section 3 is provided with a first-stage convex connecting groove 201, and the end face of the second-stage loading section 3 near the first-stage loading filter section 2 is provided with a corresponding second-stage concave connecting groove 302; the other end face of the second-stage loading section 3 is provided with a second-stage convex connecting groove 301, and the end face of the third-stage loading section 4 near the second-stage loading section 3 is provided with a corresponding third-stage concave connecting groove 401;

[0026] The first-stage convex connecting groove 201, the second-stage concave connecting groove 302, the second-stage convex connecting groove 301, and the third-stage concave connecting groove 401 are all annular structures, and their centers are located on the axis of the loading cavity.

[0027] Furthermore, the interior of the loading cavity is provided with multiple annular positioning pads 6 along the axial direction for adjusting the position of the filter grid. The total thickness of the annular positioning pads 6, the annular bracket 11 and the filter grid is equal to the length of the loading cavity.

[0028] The inner diameters of the first-stage loading filter segment 2, the second-stage loading segment 3, and the third-stage loading segment 4 are the same;

[0029] The outer diameters of the annular positioning pad 6, the annular bracket 11, and the filter grid are adapted to the inner diameters of the first-stage loading filter section 2, the second-stage loading section 3, and the third-stage loading section 4;

[0030] The inner diameter of the ring support 11 is adapted to the outer diameter of the bent sheet energetic material 15 and the straight-connected sheet energetic material 14;

[0031] The annular positioning pad 6, located at the primary soft explosive cable installation slot 202 or the secondary soft explosive cable installation slot 303, has a corresponding groove along the radial direction.

[0032] Furthermore, the inner walls of test section 1, first-stage loading and filtering section 2, second-stage loading section 3 and third-stage loading section 4 are all provided with locking grooves 13 along the axial direction;

[0033] The radial angle between the locking groove 13 and the primary flexible explosive cable installation groove 202 or the secondary flexible explosive cable installation groove 303 is 10°~60°;

[0034] The outer circumference of the annular positioning pad 6, the annular bracket 11, and the filter grid is provided with a positioning boss 12 that matches the positioning groove 13;

[0035] The annular positioning pad 6, the annular bracket 11, and the filter grid have the same thickness;

[0036] The filter grid includes a first filter grid 7 with a first filter through hole 701 and a second filter grid 8 with a second filter through hole 801;

[0037] The array arrangement of the first filter via 701 and the second filter via 801 is at a 45° angle.

[0038] Furthermore, the radial angle between the locking groove 13 and the primary flexible explosive cable installation groove 202 or the secondary flexible explosive cable installation groove 303 is 15°;

[0039] The third-stage loading section 4 has an internal thread c2 at one end near the tail section 5, and the outer wall of the tail section 5 has an external thread c3. The inner diameter of the internal thread c2 is larger than the inner diameter of the rest of the third-stage loading section 4, and the step surface between the two forms the internal thread termination surface c1.

[0040] The tail section 5 is threaded and fitted into the third-stage loading section 4. A buffer washer is provided on the internal thread termination surface c1 of the third-stage loading section 4.

[0041] At least three uniformly arranged sensors 101 are embedded in the test section 1. The sensitive part of the sensor 101 extends into the explosion cavity and faces the direction of the direct-connected energetic structure 10, and is used to test the plane wave load.

[0042] The outer periphery of the end of the tail section 5 away from the third-stage loading section 4 is provided with a symmetrical clamping surface 501;

[0043] The pressure relief detonator 502 is threadedly installed on the end face of the tail section 5 away from the third-stage loading section 4;

[0044] The pressure relief detonator 502 has symmetrical pressure relief detonator clamping surfaces 503 on the outer periphery of the end away from the tail section 5;

[0045] The annular bracket 11 is made of nylon and includes an annular pad and a support circular plate 112 set at the center of the annular pad via a support arm;

[0046] The supporting circular plate 112 is used to adhesively connect with the bent sheet energetic material 15 or the straight sheet energetic material 14;

[0047] The structure of the annular pad is the same as that of the annular positioning pad 6;

[0048] The center of the supporting circular plate 112 is provided with a flexible explosive cable fixing hole 113;

[0049] One end of the direct-connection soft explosive cord 16 passes through the soft explosive cord fixing hole 113 and is bonded to the direct-connection sheet energetic material 14; one end of the bent soft explosive cord 17 is bent and passes through the soft explosive cord fixing hole 113 and is bonded to the bent sheet energetic material 15.

[0050] This invention also provides a method for generating plane waves from cascaded thin-film energetic materials, based on the aforementioned cascaded thin-film energetic material plane wave loading device, characterized by the following steps:

[0051] S0, prepare test section 1, first-stage loading filter section 2, third-stage loading section 4, tail section 5 and pressure relief detonator 502;

[0052] S1, install the first-stage loading filter section 2 with sealing ring 203 on the test section 1;

[0053] S2, check the airtightness between the first-stage loading filter section 2 and the test section 1, and adjust the installation position of the sealing ring 203 and the first-stage loading filter section 2 until the airtightness between them is intact.

[0054] S3, assemble the first-stage loading filter section 2 and the third-stage loading section 4, and install the filter grid and the direct-connected energetic structure 10 to complete the loading;

[0055] S4. Wrap PTFE tape around the detonator 502 and install it on the tail section 5. Install the tail section 5 on the three-stage loading section 4 to complete the installation of the cascaded thin-film energetic material plane wave loading device. Use the cascaded thin-film energetic material plane wave loading device to conduct an initiation test in order to realize the generation of cascaded thin-film energetic material plane waves.

[0056] Further, in step S0, the number of secondary loading segments 3 is determined according to the required length of the loading cavity, and the secondary loading segments 3 are prepared;

[0057] Step S3 includes:

[0058] S3.1, At least two filter grids are installed into the first-stage loading filter section 2, and the filter through holes on each filter grid are staggered; the bent energy-containing structure 9 is installed into the first-stage loading filter section 2;

[0059] S3.2, Install the secondary loading section 3 on the primary loading filter section 2; install the bent energetic structure 9 into the secondary loading section 3;

[0060] S3.3, Install the third-stage loading segment 4 on the second-stage loading segment 3; install the direct-connected energetic structure 10 into the third-stage loading segment 4.

[0061] Further, step S1 specifically involves performing sensitivity and stability tests on sensor 101 to ensure it functions properly, and then installing it on test section 1; installing the first-stage loading filter section 2 with sealing ring 203 on test section 1; and adjusting the sensitive surface of sensor 101 until it is parallel to the end face of test section 1.

[0062] Step S3.1 specifically involves installing the annular positioning pad 6 and each filter grid into the first-stage loading filter section 2 as needed, inserting the locking boss 12 into the corresponding locking groove 13 of the first-stage loading filter section 2, and ensuring that the filter through holes on each filter grid are misaligned.

[0063] An annular bracket 11 containing bent sheet energetic material 15 and bent soft explosive cord 17 is installed, a primary loading filter section 2 is installed, and the bent soft explosive cord 17 is inserted into an annular positioning pad 6 with a slot.

[0064] Insert the bent flexible explosive cord 17 into the first-stage flexible explosive cord installation slot 202 to complete the loading of the first-stage loading filter section 2;

[0065] Step S3.2 specifically involves aligning the locking grooves 13 of the secondary loading segment 3 and the primary loading filter segment 2, and making the convex connecting groove 201 of the primary segment and the concave connecting groove 302 of the secondary segment cooperate and connect, and installing the secondary loading segment 3 on the primary loading filter segment 2.

[0066] Insert the annular positioning pad 6 into the secondary loading section 3 as needed, and insert the locking boss 12 into the corresponding locking groove 13 of the secondary loading section 3;

[0067] An annular bracket 11 containing bent sheet-like energetic material 15 and bent soft explosive cord 17 is inserted, a secondary loading section 3 is inserted, and the bent soft explosive cord 17 is inserted into an annular positioning pad 6 with a slot.

[0068] Insert the bent flexible explosive cord 17 into the secondary flexible explosive cord installation slot 303 to complete the loading of the secondary loading section 3;

[0069] Step S3.3 specifically involves aligning the locking grooves 13 of the third-level loading segment 4 and the second-level loading segment 3, and making the convex connecting groove 301 of the second-level segment and the concave connecting groove 401 of the third-level segment cooperate and connect, and installing the third-level loading segment 4 on the second-level loading segment 3;

[0070] Insert the annular positioning pad 6 into the third-level loading section 4 as needed, and insert the locking protrusion 12 into the corresponding locking groove 13 of the third-level loading section 4.

[0071] An annular support 11 with a direct-connection sheet-like energetic material 14 and a direct-connection soft explosive cord 16 is inserted, and a buffer washer is placed on the internal thread termination surface c1 of the third-stage loading section 4 to complete the loading of the third-stage loading section 4.

[0072] Step S4 specifically involves wrapping PTFE tape around the detonator 502 and installing it on the tail section 5;

[0073] Screw the external thread c3 of the tail section 5 into the internal thread c2 of the third-stage loading section 4 until it reaches the buffer washer, and ensure that the direct-connection soft detonating cord 16 passes through the pressure relief detonator 502 without bending.

[0074] By clamping the clamping surface 501 on the tail section 5, the position of the tail section 5 is adjusted so that the buffer gasket reaches the effective pre-compression amount to maintain the seal, thus completing the installation of the cascaded thin sheet energetic material plane wave loading device. The cascaded thin sheet energetic material plane wave loading device is used to conduct an initiation test to realize the generation of cascaded thin sheet energetic material plane waves.

[0075] Compared with the prior art, the present invention has the following beneficial effects:

[0076] 1. This invention provides a cascaded thin-film energetic material plane wave loading device, featuring a split structure where each component can be completely disassembled. Each layer of the structure operates independently, supporting various configuration combinations. Load parameters can be controlled by setting parameters such as the distance of the loading material, device structure, and the quantity of explosive charge, enabling stable installation and loading of single or multiple layers of thin-film energetic materials. The device is highly integrated, encompassing multi-stage loading ends, excitation, filtering, and sensor installation and testing functions. The test section, filtering section, and functional components of each explosive charge stage can be completely disassembled and installed separately, layer by layer, to fix the thin-film energetic material before final assembly and testing. Operation is not limited by space, ensuring safe operation of pyrotechnic devices. This invention's device is safe and reliable, capable of generating high-amplitude, long-pulse plane loads. In terms of safety, the design allows a maximum allowable explosive load of 40 MPa, enabling the generation of loads with a wide amplitude range and excellent structural pressure resistance. The device's pressure relief area is controllable, effectively controlling the generation of long-pulse plane loads of tens of milliseconds and above. This invention has a simple structure, small size, convenient operation, and high integration, and can serve as a stable plane wave loading device and loading scheme for thin sheet energetic materials.

[0077] 2. This invention provides a cascaded thin-film energetic material plane wave loading device. A nylon bracket is designed for support and positioning, preventing bending, stretching, and compression of the highly flexible thin-film energetic material during installation. The thin-film energetic material substrate has high flexibility, making it prone to bending and wrinkling during installation, which negatively impacts the excitation effect and the flatness of the charge. The nylon bracket with a cross-shaped support effectively conforms to the thin-film energetic material, fixing the charge to the overall loading device. A soft detonator interface is provided on the bracket, providing soft contact and establishing good contact excitation between the thin-film energetic material and the soft detonator. Furthermore, the choice of nylon material and the small cross-shaped structure of the support arm effectively utilizes the material's fragile nature. When the energetic material is excited, the support structure breaks instantly, preventing the structure from affecting the waveform within the loading cavity.

[0078] 3. This invention provides a cascaded thin-film energetic material plane wave loading device, which features a double-layer filter grid. Through completely staggered, evenly distributed small holes, it blocks the direct jet of explosive biomass and nylon support fragments, and filters most of the multi-peak shock waves reflected from the wall surface, forming a smooth shock wave loading curve. This effectively promotes the generation of plane loads and waveform homogenization. Different pulse width durations can be controlled by adjusting the number and diameter parameters of the pressure relief holes. The bent-type and direct-connection energetic structures, combined with various levels of pressure relief detonating holes, constitute a plane load loading and pulse width control system. Through the combination of multi-layered thin-film energetic materials and the filter grid, and with pressure relief coordination, plane wave loading is achieved.

[0079] 4. The cascaded thin-film energetic material plane wave loading device provided by this invention completely decouples the functions of each part of the device into different components. This not only increases the stability of the loading part of the device during installation but also greatly enhances the expandability of the device, allowing control and adjustment of various parameters of the structure and load. For example, the test section can be replaced with other effect structures or expanded with other test structures through flange connections. Each loading section can be combined with the test load requirements to add multiple loading sections or reduce to single-piece load loading. The charge position can be adjusted and fixed by adjusting the pads and grids, and the chamber length can be directly replaced and increased or decreased, thereby realizing the control of load-related parameters.

[0080] 5. The present invention provides a method for generating plane waves of cascaded thin-film energetic materials. The device used has full decoupling characteristics and can achieve stable synchronous excitation of 0.8mm, three-layer charge. By controlling the pressure relief parameters of the control device and the assembly combination, a controllable long pulse width plane load is generated as a charge and loading scheme for cascaded thin-film energetic materials. Attached Figure Description

[0081] Figure 1 This is a schematic diagram of an embodiment of a cascaded thin-film energetic material plane wave loading device according to the present invention;

[0082] Figure 2 This is a partial 120° cross-sectional view of an embodiment of the present invention;

[0083] Figure 3 This is a schematic diagram of the structure of the first-stage loading filter segment in an embodiment of the present invention, where A and B are two different viewpoints;

[0084] Figure 4 This is a schematic diagram of the structure of the secondary loading segment in an embodiment of the present invention, where A and B are two different perspectives;

[0085] Figure 5 This is a schematic diagram of the three-stage loading segment in an embodiment of the present invention, where A and B are two different perspectives;

[0086] Figure 6 This is a schematic diagram of the tail section in an embodiment of the present invention, where A and B are two different perspectives;

[0087] Figure 7 This is a schematic diagram of the detonating depressurization device in an embodiment of the present invention;

[0088] Figure 8 This is a schematic diagram of the structure of the first filter grid and the second filter grid in an embodiment of the present invention, wherein A and B are the first filter grid and the second filter grid, respectively;

[0089] Figure 9This is a schematic diagram of the structure of the annular positioning pad (grooved) in an embodiment of the present invention;

[0090] Figure 10 The diagram shows the structure of the bent-type energy-containing structure and the direct-connection type energy-containing structure in the embodiments of the present invention, wherein A is the bent-type energy-containing structure and B is the direct-connection type energy-containing structure;

[0091] Figure 11 This is a schematic diagram of the structure of the ring-shaped support in an embodiment of the present invention;

[0092] Figure 12 This is a schematic diagram of the assembly of a single-layer sheet energetic material in other embodiments of the present invention;

[0093] Figure 13 This is a schematic diagram of the assembly of a double-layered sheet energetic material in another embodiment of the present invention.

[0094] The annotations in the attached figures are explained as follows:

[0095] 1-Test section, 101-Sensor; 2-First-stage loading and filtering section, 201-First-stage convex connecting groove, 202-First-stage flexible explosive cord mounting groove, 203-Rubber sealing ring; 3-Second-stage loading section, 301-Second-stage convex connecting groove, 302-Second-stage concave connecting groove, 303-Second-stage flexible explosive cord mounting groove; 4-Third-stage loading section, 401-Third-stage concave connecting groove; 5-Tail section, 501-Clamping surface, 502-Pressure relief detonator, 503-Pressure relief detonator clamping surface;

[0096] 6-Annular positioning pad; 7-First filter grid, 701-First filter through hole; 8-Second filter grid, 801-Second filter through hole; 9-Bent type energetic structure; 10-Direct connection type energetic structure; 11-Annular bracket, 111-Annular bracket fitting position; 112-Supporting circular plate; 113-Soft explosive cord fixing hole; 12-Locking boss; 13-Locking groove; 14-Direct connection type sheet energetic material; 15-Bent type sheet energetic material; 16-Direct connection type soft explosive cord; 17-Bent type soft explosive cord;

[0097] a1 - Through hole for threaded installation of primary section; a2 - Through hole for threaded installation of bottom section of secondary section; a3 - Through hole for threaded installation of top section of secondary section; a4 - Through hole for threaded installation of tertiary section; b1 - Long bolt; b2 - Short bolt; c1 - Internal thread termination surface; c2 - Internal thread; c3 - External thread; d1 - Threaded installation hole for pressure relief and detonation mechanism; d2 - Through hole for pressure relief and detonation mechanism; e - Rubber sealing ring mounting groove. Detailed Implementation

[0098] To make the objectives, advantages, and features of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0099] This invention proposes a highly integrated loading device and loading scheme that can realize the synchronous excitation of multi-level thin sheet energetic materials and generate long pulse width planar loads, overcoming the problem that traditional planar wave loading devices cannot flexibly adjust the load and structural parameters and output controllable long pulse width planar shock waves at the level of hundreds of milliseconds or above.

[0100] like Figures 1 to 6 As shown, this embodiment provides a cascaded thin-film energetic material plane wave loading device, including a test section 1, a first-stage loading and filtering section 2, a second-stage loading section 3, and a third-stage loading section 4 connected in sequence, and a tail section 5 disposed at the end of the third-stage loading section 4 away from the test section 1. The test section 1, the first-stage loading and filtering section 2, the third-stage loading section 4, and the tail section 5 together constitute a loading cavity.

[0101] At least three uniformly arranged sensors 101 are embedded in the test section 1. The sensitive part of the sensor 101 extends into the explosion cavity and faces the direction of the direct-connected energetic structure 10. It is used to collect the pressure time history curve of the load and verify and compare them. The sensor sensitive surface is designed to be in the inner diameter of the annular positioning pad 6 to ensure that the data acquisition is not affected.

[0102] refer to Figure 8 The primary loading filter section 2 is installed on the test section 1, and a rubber sealing ring 203 is provided between the test section 1 and the primary loading filter section 2 to ensure the airtightness of the device. The primary loading filter section 2 has two filter grids with filter through holes inside. The filter grids include a first filter grid 7 with a first filter through hole 701 and a second filter grid 8 with a second filter through hole 801. The array arrangement of the first filter through hole 701 and the second filter through hole 801 is at a 45° angle. The filter through holes on each filter grid are staggered and have a consistent opening ratio, used to block the direct jet of explosion products and generate a one-dimensional planar shock wave with good planarity.

[0103] refer to Figure 3 , Figure 10 and Figure 11The first-stage loading filter section 2 has a radially arranged first-stage flexible explosive cable mounting groove 202 on one end face near the third-stage loading section 4; the first-stage loading filter section 2 has a bent-type energetic structure 9 inside, which includes a bent-type sheet energetic material 15 and a bent-type flexible explosive cable 17. The bent-type sheet energetic material 15 is fixed in the first-stage loading filter section 2 by an annular bracket 11, located between the filter grid and the direct-connection energetic structure 10. One end of the bent-type flexible explosive cable 17 passes through the first-stage flexible explosive cable mounting groove 202 and extends into the loading cavity. After being bent, it fits with the bent-type sheet energetic material 15 to generate a plane wave load.

[0104] The secondary loading section 3 is located between the primary loading and filtering section 2 and the tertiary loading section 4, and is used to extend the length of the loading cavity to form a cascade of sheet-like energetic materials; the end face of the secondary loading section 3 near the tertiary loading section 4 is provided with a secondary flexible explosive cable mounting groove 303 in the radial direction.

[0105] refer to Figure 4 , Figure 10 and Figure 11 The secondary loading section 3 is equipped with a bent energetic structure 9. As above, the bent sheet energetic material 15 is fixed in the secondary loading section 3 by the annular bracket 11 and is located between the filter grid and the direct-connected energetic structure 10. One end of the bent flexible explosive cable 17 passes through the secondary flexible explosive cable mounting groove 303 and extends into the loading cavity. After being bent, it fits with the bent sheet energetic material 15 to generate a plane wave load.

[0106] refer to Figure 7 A pressure relief detonator 502 is provided on the end face of the tail section 5 away from the first-stage loading filter section 2.

[0107] refer to Figure 10 , Figure 11 The interior of the third-stage loading section 4 is provided with a direct-connection energetic structure 10, which includes a direct-connection sheet energetic material 14 and a direct-connection flexible detonating cord 16. The direct-connection sheet energetic material 14 is fixed in the third-stage loading section 4 by an annular bracket 11. One end of the direct-connection flexible detonating cord 16 passes through the pressure relief detonator 502 and extends into the loading cavity, and is attached to the direct-connection sheet energetic material 14 to generate a plane wave load.

[0108] The end face of the first-stage loading filter section 2 near the second-stage loading section 3 is provided with a first-stage convex connecting groove 201, and the end face of the second-stage loading section 3 near the first-stage loading filter section 2 is provided with a corresponding second-stage concave connecting groove 302; the other end face of the second-stage loading section 3 is provided with a second-stage convex connecting groove 301, and the end face of the third-stage loading section 4 near the second-stage loading section 3 is provided with a corresponding third-stage concave connecting groove 401; the first-stage convex connecting groove 201, the second-stage concave connecting groove 302, the second-stage convex connecting groove 301, and the third-stage concave connecting groove 401 are all annular structures, and their centers are located on the axis of the loading cavity.

[0109] refer to Figure 9 In this embodiment, the loading cavity is provided with multiple annular positioning pads 6 along the axial direction for adjusting the position of the filter grid. The total thickness of the annular positioning pads 6, the annular support 11, and the filter grid is equal to the length of the loading cavity. The inner diameters of the first-stage loading filter section 2, the second-stage loading section 3, and the third-stage loading section 4 are the same. The outer diameters of the annular positioning pads 6, the annular support 11, and the filter grid are adapted to the inner diameters of the first-stage loading filter section 2, the second-stage loading section 3, and the third-stage loading section 4. The inner diameter of the annular support 11 is adapted to the outer diameters of the bent sheet energetic material 15 and the straight-connected sheet energetic material 14. The annular positioning pads 6 located at the first-stage flexible detonator installation groove 202 or the second-stage flexible detonator installation groove 303 are correspondingly slotted radially. The structure is assembled by layer-by-layer installation to ensure the stable assembly of the sheet energetic material.

[0110] In this embodiment, the inner walls of the test section 1, the first-stage loading filter section 2, the second-stage loading section 3, and the third-stage loading section 4 are all provided with axially arranged locking grooves 13; the radial angle between the locking grooves 13 and the first-stage flexible explosive cable installation groove 202 or the second-stage flexible explosive cable installation groove 303 is 15°, which can ensure that the flexible explosive cable is smoothly installed; the outer circles of the annular positioning pad 6, the annular bracket 11, and the filter grid are provided with locking bosses 12 that are adapted to the locking grooves 13, so as to realize the limiting and positioning of each part; the annular positioning pad 6, the annular bracket 11, and the filter grid have the same thickness; the third-stage loading section 4 is provided with an internal thread at one end near the tail section 5. The outer wall of the tail section 5 is provided with an external thread c3 corresponding to the thread c2; the inner diameter of the internal thread c2 is larger than the inner diameter of the rest of the third-stage loading section 4, and the stepped surface between the two forms the internal thread termination surface c1; the tail section 5 is threadedly fitted into the third-stage loading section 4, and a buffer washer is provided on the internal thread termination surface c1 of the third-stage loading section 4; the outer periphery of the tail section 5 away from the third-stage loading section 4 is provided with a symmetrical clamping surface 501; the pressure relief detonator 502 is threadedly set on the end face of the tail section 5 away from the third-stage loading section 4; the outer periphery of the pressure relief detonator 502 away from the tail section 5 is provided with a symmetrical pressure relief detonator clamping surface 503. The annular support 11 is made of nylon and includes an annular pad and a support circular plate 112 set at the center of the annular pad via a support arm. The support circular plate 112 is used to adhesively connect with the bent sheet energetic material 15 or the direct-connection sheet energetic material 14, and is tightly fitted at the fitting position 111 of the annular support. The structure of the annular pad is the same as that of the annular positioning pad 6. The center of the support circular plate 112 is provided with a flexible explosive cable fixing hole 113. One end of the direct-connection flexible explosive cable 16 passes through the flexible explosive cable fixing hole 113 and is fitted with the direct-connection sheet energetic material 14. One end of the bent flexible explosive cable 17 is bent and passes through the flexible explosive cable fixing hole 113 and is fitted with the bent sheet energetic material 15.

[0111] Nylon was chosen as the material for the ring-shaped support. When the sheet energetic material is excited, the nylon can break rapidly under the action of the detonation wave, without forming large rigid fragments that would affect the propagation of multi-stage plane waves. The resulting fine fragments are completely blocked by the filter grid with completely staggered holes, and then the reflected shock waves are filtered by the filter grid wall, generating a better shock wave load. Therefore, it can effectively clamp and position the soft explosive cord and the sheet energetic material, fix the plane formed by the sheet charge to be parallel to the test surface, and generate and collect a plane load waveform with excellent flatness.

[0112] The primary flexible detonating cord mounting slot 202, the secondary flexible detonating cord mounting slot 303, and the pressure relief detonating through-hole d2 respectively form a tertiary pressure relief detonating hole on the outside of the device, ensuring that the length of each flexible detonating cord segment is consistent, so as to control the synchronous initiation of multi-stage thin sheet energetic materials. The diameter of the pressure relief detonating through-hole d2 can be adjusted by replacing the pressure relief detonator 502 with different diameters. Through these settings, the overall pressure relief area can be controlled, thereby controlling the pulse width length of the generated load and achieving long pulse width high peak loads in the tens of milliseconds to seconds.

[0113] The cascaded thin-film energetic material plane wave generation method implemented in this embodiment includes the following steps:

[0114] S0, prepare test section 1, primary loading filter section 2, tertiary loading section 4, tail section 5, and pressure relief detonator 502; prepare secondary loading section 3 according to the length of the loading cavity;

[0115] S1. Perform sensitivity and stability tests on sensor 101 to ensure it functions properly, then install it on test section 1; fill the rubber sealing ring 203 into the rubber sealing ring mounting groove e, and install the first-stage loading filter section 2 with sealing ring 203 on test section 1; adjust the sensitive surface of sensor 101 until it is parallel to the end face of test section 1.

[0116] S2, check the airtightness between the first-stage loading filter section 2 and the test section 1, and adjust the installation position of the sealing ring 203 and the first-stage loading filter section 2 until the airtightness between them is good; align the threaded mounting through hole a1 of the first-stage section with the threaded mounting through hole on the test section 1, and insert 12 long bolts b1 in sequence along the circumference.

[0117] S3, assemble the first-stage loading filter section 2 and the third-stage loading section 4, and install the filter grid and the direct-connected energetic structure 10 to complete the loading. Specifically:

[0118] S3.1, the annular positioning pad 6 and the filter grid are installed into the first-stage loading filter section 2 as needed, and the locking boss 12 is correspondingly locked into the locking groove 13 of the first-stage loading filter section 2 to ensure the stability of the device positioning and the loading position; the sequence is: annular positioning pad 6, first filter grid 7, annular positioning pad 6, second filter grid 8, annular positioning pad 6 and bent energy-containing structure 9.

[0119] An annular bracket 11 containing bent sheet-like energetic material 15 and bent flexible explosive cord 17 is inserted. An annular positioning pad 6 is inserted and the bent flexible explosive cord 17 is inserted into the slotted annular positioning pad 6. The bent flexible explosive cord 17 is inserted into the first-stage flexible explosive cord installation slot 202, thus completing the loading of the first-stage loading filter section 2.

[0120] S3.2, similar to S3.1, align the locking grooves 13 of the secondary loading section 3 and the primary loading filter section 2, and make the convex connecting groove 201 of the primary section and the concave connecting groove 302 of the secondary section fit together. Install the secondary loading section 3 on the primary loading filter section 2. Insert the long bolt b1 through the threaded mounting hole a2 at the bottom of the secondary section, install the nut, and fix it in series by means of flange connection. Note that during the installation process, the bent flexible explosive cable 17 of the primary loading filter section 2 should be kept in the primary flexible explosive cable mounting groove 202, and should be squeezed as little as possible. Install the annular positioning pad 6 into the secondary loading section 3 as needed, and lock the locking boss 12 into the corresponding locking groove 13 of the secondary loading section 3.

[0121] An annular bracket 11 containing bent sheet-like energetic material 15 and bent flexible explosive cord 17 is inserted. An annular positioning pad 6 is inserted and the bent flexible explosive cord 17 is inserted into the slotted annular positioning pad 6. The bent flexible explosive cord 17 is inserted into the secondary flexible explosive cord installation groove 303 to complete the loading of the secondary loading section 3.

[0122] S3.3 Align the locking grooves 13 of the third-level loading segment 4 and the second-level loading segment 3, and make the convex connecting groove 301 of the second-level segment and the concave connecting groove 401 of the third-level segment cooperate and connect, and install the third-level loading segment 4 on the second-level loading segment 3; insert 12 short bolts b2 in sequence along the circumference at the threaded mounting through hole a3 at the top of the second-level segment.

[0123] Insert the short bolt b2 into the threaded mounting through hole a4 of the third-stage section (or the threaded mounting through hole a2 at the bottom of the second-stage section if there are multiple second-stage loading sections 3), install the nut, and fix it in series using a flange connection; note that during the installation process, the bent flexible explosive cable 17 of the second-stage loading section 3 should be kept within the second-stage flexible explosive cable mounting groove 303, and should be squeezed as little as possible; install the annular positioning pad 6 into the third-stage loading section 4 as needed, and insert the locking boss 12 into the corresponding locking groove 13 of the third-stage loading section 4.

[0124] An annular support 11 containing a direct-connection sheet-like energetic material 14 and a direct-connection soft explosive cord 16 is inserted, and a buffer washer is placed on the internal thread termination surface c1 of the third-stage loading section 4 to complete the loading of the explosive in the third-stage loading section 4.

[0125] S4. Wrap PTFE tape around the pressure relief detonator 502 and install it on the threaded mounting hole d1 of the pressure relief detonator mechanism in the tail section 5. Slowly screw the external thread c3 of the tail section 5 into the internal thread c2 of the three-stage loading section 4 until it reaches the internal thread termination surface c1, and ensure that the direct-connection flexible detonating cord 16 passes through the pressure relief detonating through hole d2 of the pressure relief detonator 502 without bending.

[0126] By using pliers to clamp the clamping surface 501 on the tail section 5, the position of the tail section 5 is adjusted so that the buffer washer reaches the effective pre-compression amount to maintain the seal, thus completing the installation of the cascaded thin-film energetic material plane wave loading device. The clamping surface 501 facilitates the tightening of the threads. The inner diameter of the tail section 5 is the same as the inner diameter of the annular positioning pad 6, which is the actual inner diameter of the loading cavity. Ensuring that the bottom surface of the tail section 5 is tightly fitted with the straight surface of the internal thread allows it to support all the filter grids, annular bracket 11, and annular positioning pad 6 within the loading cavity, thereby fixing the internal cavity of the device.

[0127] Place the completed device on the test platform, cover it with sandbags to fix it, connect the data acquisition device to the detonation system to ensure test safety, and then carry out experimental testing. Use the cascaded thin-film energetic material plane wave loading device to conduct detonation test to realize the generation of cascaded thin-film energetic material plane waves.

[0128] The aforementioned design, with its multi-stage loading sections connected in series by flanges, avoids the rotational operations required for threaded connections, reducing disturbance to the thin energetic material during installation. The flange structure provides standardized mating references, ensuring stability during disassembly and installation under high-pressure impact loads. It also enables rapid alignment and disassembly of each loading section, as well as effective decoupling and flexible assembly of components at each stage. This design significantly improves the device's versatility, parameter adjustability, and modular adaptability.

[0129] This invention can also realize the assembly of plane wave loading experiments for double-layer and single-layer thin-film energetic materials, and the specific assembly combination is as follows: Figure 12 (Single layer) Figure 13 As shown in the (double-layer) diagram, the primary loading filter section 2 and the tertiary loading section 4 are connected by a long bolt b1 flange to achieve the assembly of a single or double sheet of energetic material and to adjust the volume and length of the loading chamber of the device. Similarly, multiple secondary loading sections 3 can be cascaded using short bolts b2 to achieve cascaded loading of more than three layers of sheet explosives. The main difference from the above embodiment is that the secondary loading section 3 with three layers of energetic material assembly is removed, and the primary loading section 2 and the tertiary loading section 4 are directly connected by bolts. The installation methods for the remaining pads and sheet energetic material are basically similar.

[0130] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the present invention.

Claims

1. A cascaded thin-film energetic material plane wave loading device, characterized in that: It includes a test segment (1), a first-level loading filter segment (2) and a third-level loading segment (4) connected in sequence, and a tail segment (5) set at the end of the third-level loading segment (4) away from the test segment (1); The test section (1) is used to test plane wave loads; The first-stage loading filter section (2) is set on the test section (1), and a rubber sealing ring (203) is provided between the connection position of the test section (1) and the first-stage loading filter section (2); The first-stage loading filter section (2) is provided with at least two filter grids with filter through holes inside. The filter through holes on each filter grid are staggered and have the same opening ratio, which is used to block the direct jet of explosion products. The tail section (5) is provided with a pressure relief detonator (502) at one end face away from the first-stage loading filter section (2); The test section (1), the first-stage loading filter section (2), the third-stage loading section (4), and the tail section (5) together constitute the loading cavity; The interior of the third-stage loading section (4) is provided with a direct-connection energetic structure (10), which includes a direct-connection sheet energetic material (14) and a direct-connection soft explosive cord (16). The direct-connected sheet-like energetic material (14) is fixed in the third-stage loading section (4) by an annular bracket (11); one end of the direct-connected soft detonator (16) passes through the pressure relief detonator (502) and extends into the loading cavity, and is attached to the direct-connected sheet-like energetic material (14) to generate plane wave load.

2. The cascaded thin-film energetic material plane wave loading device according to claim 1, characterized in that: The first-stage loading filter section (2) has a first-stage flexible explosive cable mounting groove (202) radially provided on one end face near the third-stage loading section (4); The first-stage loading filter section (2) is provided with a bent energetic structure (9), which includes a bent sheet energetic material (15) and a bent flexible explosive cable (17). The bent sheet energetic material (15) is fixed in the first-stage loading filter section (2) by an annular bracket (11) and is located between the filter grid and the direct-connection energetic structure (10). One end of the bent flexible explosive cable (17) passes through the first-stage flexible explosive cable mounting groove (202) and extends into the loading cavity. After being bent, it fits with the bent sheet energetic material (15) to generate a plane wave load.

3. The cascaded thin-film energetic material plane wave loading device according to claim 2, characterized in that: It also includes at least one secondary loading segment (3); The secondary loading section (3) is located between the primary loading and filtering section (2) and the tertiary loading section (4) to extend the length of the loading cavity to form a cascade of sheet-like energetic materials; the end face of the secondary loading section (3) near the tertiary loading section (4) is provided with a secondary flexible explosive cable mounting groove (303) in the radial direction; The secondary loading section (3) is provided with a bent energetic structure (9) inside, wherein the bent sheet energetic material (15) is fixed in the secondary loading section (3) by a ring bracket (11), and one end of the bent flexible explosive cable (17) passes through the secondary flexible explosive cable mounting groove (303) and extends into the loading cavity, and is bent and then attached to the bent sheet energetic material (15) to generate a plane wave load.

4. The cascaded thin-film energetic material plane wave loading device according to claim 3, characterized in that: The first-stage loading filter section (2) has a first-stage convex connecting groove (201) on its end face near the second-stage loading section (3), and the second-stage loading section (3) has a corresponding second-stage concave connecting groove (302) on its end face near the first-stage loading filter section (2); the other end face of the second-stage loading section (3) has a second-stage convex connecting groove (301), and the third-stage loading section (4) has a corresponding third-stage concave connecting groove (401) on its end face near the second-stage loading section (3); The first-stage convex connecting groove (201), the second-stage concave connecting groove (302), the second-stage convex connecting groove (301), and the third-stage concave connecting groove (401) are all annular structures, and their centers are located on the axis of the loading cavity.

5. A cascaded thin-film energetic material plane wave loading device according to claim 3 or 4, characterized in that: The loading cavity is provided with a plurality of annular positioning pads (6) along the axial direction for adjusting the position of the filter grid. The total thickness of the annular positioning pads (6), the annular bracket (11) and the filter grid is equal to the length of the loading cavity. The inner diameters of the first-stage loading filter segment (2), the second-stage loading segment (3), and the third-stage loading segment (4) are the same; The outer diameters of the annular positioning pad (6), the annular bracket (11), and the filter grid are adapted to the inner diameters of the first-stage loading filter section (2), the second-stage loading section (3), and the third-stage loading section (4); The inner diameter of the annular support (11) is adapted to the outer diameter of the bent sheet energetic material (15) and the direct-connected sheet energetic material (14); The annular positioning pad (6) located at the primary soft explosive cable installation groove (202) or the secondary soft explosive cable installation groove (303) has a corresponding groove along the radial direction.

6. The cascaded thin-film energetic material plane wave loading device according to claim 5, characterized in that: The inner walls of the test section (1), the first-level loading filter section (2), the second-level loading section (3) and the third-level loading section (4) are all provided with axially spaced grooves (13); The radial angle between the locking groove (13) and the primary flexible explosive cable installation groove (202) or the secondary flexible explosive cable installation groove (303) is 10°~60°; The outer circumference of the annular positioning pad (6), the annular bracket (11) and the filter grid is provided with a positioning boss (12) that matches the positioning groove (13); The annular positioning pad (6), the annular bracket (11), and the filter grid have the same thickness; The filter grid includes a first filter grid (7) with a first filter through hole (701) and a second filter grid (8) with a second filter through hole (801); The array arrangement of the first filter via (701) and the second filter via (801) is at a 45° angle.

7. A cascaded thin-film energetic material plane wave loading device according to claim 6, characterized in that: The radial angle between the locking groove (13) and the primary flexible explosive cable installation groove (202) or the secondary flexible explosive cable installation groove (303) is 15°; The third-stage loading section (4) is provided with an internal thread (c2) at one end near the tail section (5), and the outer wall of the tail section (5) is provided with an external thread (c3); the inner diameter of the internal thread (c2) is larger than the inner diameter of the rest of the third-stage loading section (4), and the step surface between the two constitutes the internal thread termination surface (c1). The tail section (5) is threaded into the three-stage loading section (4), and a buffer washer is provided on the internal thread termination surface (c1) of the three-stage loading section (4); The test section (1) is embedded with at least three uniformly arranged sensors (101). The sensitive part of the sensor (101) extends into the explosion cavity and faces the direction of the direct-connected energetic structure (10) for testing plane wave load. The tail section (5) has a symmetrical clamping surface (501) on its outer periphery at the end away from the third-stage loading section (4); The pressure relief detonator (502) is threaded onto the end face of the tail section (5) away from the third-stage loading section (4); The pressure relief detonator (502) has a symmetrical pressure relief detonator clamping surface (503) on the outer periphery of the end away from the tail section (5); The annular bracket (11) is made of nylon and includes an annular pad and a support circular plate (112) set at the center of the annular pad via a support arm; The supporting circular plate (112) is used to adhesively connect with the bent sheet energetic material (15) or the direct-connected sheet energetic material (14); The structure of the annular pad is the same as that of the annular positioning pad (6); The center of the supporting circular plate (112) is provided with a flexible explosive cable fixing hole (113); One end of the direct-connection soft explosive cord (16) passes through the soft explosive cord fixing hole (113) and is attached to the direct-connection sheet energetic material (14); one end of the bent soft explosive cord (17) is bent and passes through the soft explosive cord fixing hole (113) and is attached to the bent sheet energetic material (15).

8. A method for generating plane waves from cascaded thin-film energetic materials, based on the cascaded thin-film energetic material plane wave loading device according to any one of claims 1-7, characterized in that, The steps include the following: S0, prepare the test section (1), the first-stage loading filter section (2), the third-stage loading section (4), the tail section (5) and the pressure relief detonator (502); S1, install the first-stage loading filter section (2) with sealing ring (203) on the test section (1); S2, check the air tightness between the first-stage loading filter section (2) and the test section (1), and adjust the installation position of the sealing ring (203) and the first-stage loading filter section (2) until the air tightness between them is good; S3, assemble the first-stage loading filter section (2) and the third-stage loading section (4), and load the filter grid and the direct-connected energetic structure (10) to complete the loading; S4, wrap raw material tape around the detonator (502) and install it on the tail section (5); install the tail section (5) on the three-stage loading section (4) to complete the installation of the cascaded thin sheet energetic material plane wave loading device, and use the cascaded thin sheet energetic material plane wave loading device to conduct an initiation test in order to realize the generation of cascaded thin sheet energetic material plane waves.

9. The method for generating plane waves from cascaded thin-film energetic materials according to claim 8, characterized in that: In step S0, the number of secondary loading segments (3) is determined according to the required length of the loading cavity, and the secondary loading segments (3) are prepared. Step S3 includes: S3.1, At least two filter grids are installed in the first-stage loading filter section (2), and the filter through holes on each filter grid are staggered; the bent energy-containing structure (9) is installed in the first-stage loading filter section (2); S3.2, Install the secondary loading section (3) on the primary loading filter section (2); install the bent energetic structure (9) into the secondary loading section (3); S3.3, install the third-stage loading section (4) on the second-stage loading section (3); install the direct-connected energetic structure (10) into the third-stage loading section (4).

10. A method for generating plane waves from cascaded thin-film energetic materials according to claim 9, characterized in that: Step S1 specifically involves performing sensitivity and stability tests on the sensor (101) to ensure its proper functioning, and then installing it on the test section (1); installing the first-stage loading filter section (2) with a sealing ring (203) on the test section (1); and adjusting the sensitive surface of the sensor (101) until it is parallel to the end face of the test section (1). Step S3.1 specifically involves installing the annular positioning pad (6) and each filter grid into the first-stage loading filter section (2) as needed, inserting the locking boss (12) into the locking groove (13) of the first-stage loading filter section (2) accordingly, and ensuring that the filter through holes on each filter grid are misaligned. An annular bracket (11) containing bent sheet energetic material (15) and bent soft explosive cord (17) is installed, a first-stage loading filter section (2) is installed, and the bent soft explosive cord (17) is inserted into an annular positioning pad (6) with slots. Insert the bent flexible explosive cord (17) into the first-stage flexible explosive cord installation slot (202) to complete the loading of the first-stage loading filter section (2); Step S3.2 specifically involves aligning the locking grooves (13) of the secondary loading segment (3) and the primary loading filter segment (2), and making the convex connecting groove (201) of the primary segment and the concave connecting groove (302) of the secondary segment cooperate and connect, and installing the secondary loading segment (3) on the primary loading filter segment (2); Insert the annular positioning pad (6) into the secondary loading section (3) as needed, and insert the locking boss (12) into the locking groove (13) of the secondary loading section (3); An annular support (11) with bent sheet energetic material (15) and bent soft explosive cord (17) is installed, a secondary loading section (3) is installed, and the bent soft explosive cord (17) is inserted into an annular positioning pad (6) with slots. Insert the bent flexible explosive cord (17) into the secondary flexible explosive cord installation slot (303) to complete the loading of the secondary loading section (3); Step S3.3 specifically involves aligning the locking grooves (13) of the third-level loading segment (4) and the second-level loading segment (3), and making the convex connecting groove (301) of the second-level segment and the concave connecting groove (401) of the third-level segment cooperate and connect, and installing the third-level loading segment (4) on the second-level loading segment (3); Insert the annular positioning pad (6) into the three-stage loading section (4) as needed, and insert the locking boss (12) into the corresponding locking groove (13) of the three-stage loading section (4); An annular support (11) with a direct-connection sheet-like energetic material (14) and a direct-connection soft explosive cord (16) is inserted, and a buffer washer is placed on the internal thread termination surface (c1) of the third-stage loading section (4) to complete the loading of the third-stage loading section (4). Step S4 specifically involves wrapping raw material tape around the detonator (502) and installing it on the tail section (5); Screw the external thread (c3) of the tail section (5) into the internal thread (c2) of the third loading section (4) until it reaches the buffer washer, and ensure that the direct-connect soft detonating cord (16) passes through the pressure relief detonator (502) without bending. By clamping the clamping surface (501) on the tail section (5), the position of the tail section (5) is adjusted so that the buffer gasket reaches the effective pre-compression amount to maintain the seal, and the installation of the cascaded thin sheet energetic material plane wave loading device is completed. The cascaded thin sheet energetic material plane wave loading device is used to carry out the detonation test so as to realize the generation of cascaded thin sheet energetic material plane wave.

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