Intelligent charging process method for novel warhead

Abstract

The invention discloses an intelligent charging process method for a novel warhead, which belongs to the technical field of novel anti-ship warhead manufacturing and comprises the steps of constructing an intelligent control module, integrating a sensor network, establishing a charging parameter model, dynamically adjusting process parameters and forming a complex charging model structure through a 3D printing technology. Comprising the steps of model construction, model optimization, layered slicing, material deposition forming and supporting structure treatment, nanoscale high-temperature-resistant filler is added into a high-energy explosive matrix, and gradient temperature field curing treatment is conducted on a printed and formed charging model; according to the intelligent charging process method for the novel warhead, dynamic optimization of charging parameters is achieved through intelligent control, the 3D printing technology is used for breaking through the limitation of complex structure forming, and the environmental adaptability is improved by combining material modification and a gradient curing process; and an efficient and reliable technical scheme is provided for manufacturing of a novel anti-ship warhead.

Description

Technical Field

[0001] The present invention relates to the technical field of manufacturing new anti-ship warheads, and particularly to an intelligent charge loading process method for new warheads. Background Art

[0002] In the field of anti-ship weaponry, the charge loading process of anti-ship warheads directly affects their damage effectiveness and reliability. Existing anti-ship warhead charge loading usually relies on traditional charge loading processes, which still have certain defects in aspects such as charge loading accuracy and temperature tolerance performance. For example, the control accuracy of key parameters such as pressure and temperature is insufficient, resulting in uneven charge density and affecting the stability of explosive energy release; for warheads with curved surfaces, variable cross-sections or multi-cavity structures, it is difficult to achieve high-precision forming with traditional molding or casting processes; conventional charge materials are prone to thermal expansion and contraction or structural cracking in high and low temperature environments, leading to the failure of the charge structure.

[0003] With the increasing demand for warhead miniaturization and multi-functionality, there is an urgent need for a new warhead composite multi-cavity structure design method with high precision, complex forming and strong environmental adaptability. Therefore, researching and developing an intelligent charge loading process method for new warheads is of great significance for promoting the progress of anti-ship weapon technology and enhancing combat capabilities. Summary of the Invention

[0004] The purpose of the present invention is to provide an intelligent charge loading process method for new warheads, aiming to precisely adjust the warhead charge loading process, improve the accuracy of complex charge shapes, and at the same time enhance the temperature change tolerance performance of the charge.

[0005] To achieve the above purpose, the present invention provides an intelligent charge loading process method for new warheads, including the following steps:

[0006] S1. Construct an intelligent control module, deploy temperature, pressure and displacement sensors inside the charge loading equipment, collect charge loading process parameters in real time through the sensor network and transmit them to the intelligent control unit, establish a charge loading parameter model based on the fuzzy PID algorithm, and dynamically adjust the pressing process parameters according to the warhead design requirements to achieve precise control of the charge loading process and automatically store the data of the entire charge loading process;

[0007] S2. Form a complex charge model structure through 3D printing technology, including model construction, model optimization, layer slicing, material deposition forming and support structure processing;

[0008] S3. Add nano-scale high-temperature resistant fillers to the high-energy explosive matrix and perform gradient temperature field curing treatment on the printed charge model.

[0009] Preferably, the temperature sensor of the sensor network in S1 has a collection accuracy of ±0.5°C, the pressure sensor has a collection accuracy of ±1% FS, and the displacement sensor is used to provide real-time feedback on the displacement data during the charging process.

[0010] Preferably, the pressing process parameters in S1 include the feeding speed, pressure amplitude, and heat preservation time. The process parameters are set through the touch control unit of the intelligent control module and the charging process is monitored in real time.

[0011] Preferably, the specific steps of S2 are as follows:

[0012] S21. Construct a warhead charging model using 3D software, optimize the structure of the charging model through finite element analysis to ensure uniform distribution of the explosion energy;

[0013] S22. For a composite structure containing a semi-armor-piercing layer and a multi-cavity fragment layer, generate a printing path through a layer-by-layer slicing algorithm, and the layer thickness of the layer-by-layer slicing is 0.05 - 0.5 mm;

[0014] S23. Use stereolithography (SLA) technology or fused deposition modeling (FDM) technology to print the charging material layer by layer. For high-temperature-resistant areas, a composite polymer material containing ceramic particles is selected, and the high-precision forming of complex curved surfaces is completed by controlling the printing head temperature and deposition speed. The dimensional error of the charging model structure is ≤±0.1 mm;

[0015] S24. For the automatically generated detachable support structure, remove it by chemical dissolution or mechanical peeling after printing to ensure that the surface roughness Ra of the charging model structure is ≤1.6 μm.

[0016] Preferably, the mass fraction of the nano-scale high-temperature-resistant filler in the high-energy explosive matrix in S3 is 5% - 15%, and the nano-scale high-temperature-resistant filler includes but is not limited to silica gel or graphene heat-conducting sheets.

[0017] Preferably, the nano-scale high-temperature filler in S3 is uniformly dispersed in the high-energy explosive matrix at a rotation speed ≥1000 rpm, so as to increase the glass transition temperature of the charging material and reduce the linear expansion coefficient.

[0018] Preferably, the specific operation of the gradient temperature field curing treatment in S3 is as follows: Place the 3D printed charging component in a programmable oven, heat from room temperature to 80°C at a heating rate of 5°C / min, keep it warm for 2 h, and then cool to 25°C at a cooling rate of 3°C / min to form a cured structure with uniform internal stress.

[0019] Therefore, by adopting the above-mentioned intelligent charging process method for a new type of warhead, the present invention has the following beneficial effects:

[0020] (1) By integrating intelligent control technology, 3D printing technology, and temperature tolerance performance enhancement processes, the accuracy of the charging process and the complex forming ability of the charge structure have been significantly improved; the intelligent control module realizes the dynamic optimization of charging parameters, reducing the quality control cost during the production process;

[0021] (2) 3D printing technology has broken through the forming limitations of complex curved surfaces and multi-cavity structures, avoiding the high costs and long cycles of traditional mold development, significantly shortening the R & D cycle of weapon equipment; high-temperature resistant fillers and gradient temperature field curing treatment effectively improve the reliability of the warhead in extreme marine environments, reducing the equipment maintenance and replacement costs caused by insufficient environmental adaptability.

[0022] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Description of the Drawings

[0023] Figure 1 It is a flowchart of an intelligent charging process method for a new type of warhead according to the present invention. Detailed Embodiments

[0024] The following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0025] Embodiment

[0026] As Figure 1 shown, the present invention provides an intelligent charging process method for a new type of warhead, including the following steps:

[0027] S1. Build an intelligent control module, deploy temperature, pressure, and displacement sensors inside the charging equipment, collect the charging process parameters in real time through the sensor network and transmit them to the intelligent control unit, establish a charging parameter model based on the fuzzy PID algorithm, and dynamically adjust the pressing process parameters according to the design requirements of the warhead to achieve precise control of the charging process, automatically store the data of the entire charging process, and support the quality traceability and process optimization of the charging process.

[0028] The temperature sensor of the sensor network has a collection accuracy of ±0.5°C, the pressure sensor has a collection accuracy of ±1% FS, and the displacement sensor is used to feedback the charging displacement data in real time.

[0029] The pressing process parameters include the feeding speed, pressure amplitude, and heat preservation time. The process parameters are set through the touch unit of the intelligent control module and the charging process is monitored in real time.

[0030] S2. Form a complex charge model structure through 3D printing technology, including constructing the model, optimizing the model, layer slicing, material deposition forming, and processing the support structure.

[0031] S21. Construct a warhead charge model through 3D software, and optimize the charge model structure in combination with finite element analysis to ensure uniform distribution of explosion energy.

[0032] S22. Generate a printing path for the composite structure containing a semi-armor-piercing layer and a multi-cavity fragment layer through a layer slicing algorithm, and the layer thickness of layer slicing is 0.05 - 0.5 mm;

[0033] S23. Use stereolithography apparatus (SLA) technology or fused deposition modeling (FDM) technology to print the charge material layer by layer. For high-temperature resistant areas, select a composite polymer material containing ceramic particles, and complete the high-precision forming of complex curved surfaces by controlling the temperature of the print head and the deposition speed. The dimensional error of the charge model structure is ≤ ±0.1 mm;

[0034] S24. For the automatically generated detachable support structure, remove it by chemical dissolution or mechanical peeling after printing to ensure that the surface roughness Ra of the charge model structure is ≤ 1.6 μm.

[0035] S3. Add nano-scale high-temperature resistant fillers to the high-energy explosive matrix, and perform gradient temperature field curing treatment on the printed charge model.

[0036] The mass fraction of the nano-scale high-temperature resistant filler in the high-energy explosive matrix is 5% - 15%, and the nano-scale high-temperature resistant filler includes but is not limited to silica gel or graphene heat conduction sheets.

[0037] The nano-scale high-temperature filler is uniformly dispersed in the high-energy explosive matrix at a rotation speed ≥ 1000 rpm, so that the glass transition temperature of the charge material is increased and the linear expansion coefficient is reduced.

[0038] The specific operation of the gradient temperature field curing treatment is as follows: Place the 3D printed charge component in a programmable oven, heat it from room temperature to 80°C at a heating rate of 5°C / min, keep it warm for 2 h, and then cool it to 25°C at a cooling rate of 3°C / min to form a cured structure with uniform internal stress and enhance the thermal shock resistance.

[0039] This embodiment takes the charge of a certain type of anti-ship warhead as an example, and the specific process steps are as follows:

[0040] Parameter initialization: Input the design drawing of the warhead, and the intelligent control module automatically analyzes the charge structure parameters, and sets the pressing pressure to 30 MPa, the printing layer thickness to 0.2 mm, and the curing temperature curve (room temperature → 80°C → 25°C).

[0041] Layered printing and forming: Using an FDM device, with modified polyimide as the base material, the main charge body with wavy detonating grooves is printed layer by layer. During the printing process, the position of the nozzle is corrected in real time to ensure the dimensional accuracy of the grooves is ±0.08 mm.

[0042] Intelligent pressing compensation: When printing to the layer with cavity structure, the sensor detects local pressure fluctuations. The intelligent control module automatically adjusts the stroke of the pressing head, and eliminates internal voids through secondary pressure compensation, so that the uniformity error of the charge density is ≤1.5%.

[0043] Temperature tolerance treatment: The formed charge is placed in a vacuum oven and cured according to a preset gradient temperature curve. After verification by high and low temperature cycle tests (-40°C to 70°C, 10 cycles), there are no cracks in the charge structure and the density change rate is ≤0.5%.

[0044] Therefore, the present invention adopts the above-mentioned intelligent charge process method for a new type of warhead, realizes the dynamic optimization of charge parameters through intelligent control, breaks through the forming limitations of complex structures by using 3D printing technology, and combines material modification and gradient curing processes to improve environmental adaptability, providing an efficient and reliable technical solution for the manufacture of new anti-ship warheads.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that they can still modify or equivalently replace the technical solutions of the present invention, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. An intelligent charging process method for a new type of warhead, characterized in that, It includes the following steps: S1. Construct an intelligent control module, deploy temperature, pressure and displacement sensors inside the charging equipment, collect the charging process parameters in real time through the sensor network and transmit them to the intelligent control unit, establish a charging parameter model based on the fuzzy PID algorithm, dynamically adjust the pressing process parameters according to the design requirements of the warhead, and automatically store the data of the entire charging process; S2. Use 3D printing technology to form a complex charging model structure, including model construction, model optimization, layer slicing, material deposition molding and support structure processing; S3. Add nano-scale high-temperature resistant fillers to the high-energy explosive matrix, and perform gradient temperature field curing treatment on the printed charging model.

2. The intelligent charge process method for a new warhead according to claim 1, characterized in that: In S1, the temperature sensor of the sensor network has a collection accuracy of ±0.5°C, and the pressure sensor has a collection accuracy of ±1% FS.

3. The intelligent charge process method for a new warhead according to claim 1, characterized in that: The pressing process parameters in S1 include feeding speed, pressure amplitude and heat preservation time. The process parameters are set through the touch unit of the intelligent control module and the charging process is monitored in real time.

4. The intelligent charging process method for a new type of warhead according to claim 1, characterized in that, The specific steps of S2 are as follows: S21. Construct a warhead charging model through 3D software, and optimize the charging model structure in combination with finite element analysis; S22. For the composite structure containing a semi-armor-piercing layer and a multi-cavity fragment layer, generate a printing path through the layer slicing algorithm, and the layer thickness of the layer slicing is 0.05 - 0.5 mm; S23. Use stereolithography or fused deposition modeling technology to print the charging material layer by layer. For the high-temperature resistant area, select a composite polymer material containing ceramic particles, and complete the high-precision forming of complex curved surfaces by controlling the printing head temperature and deposition speed. The dimensional error of the charging model structure is ≤±0.1 mm; S24. For the automatically generated detachable support structure, remove it by chemical dissolution or mechanical peeling after printing to ensure that the surface roughness Ra of the charging model structure is ≤1.6 μm.

5. A smart charging process method for a new warhead according to claim 1, characterized in that: In S3, the mass fraction of the nano-scale high-temperature resistant filler in the high-energy explosive matrix is 5% - 15%, and the nano-scale high-temperature resistant filler includes but is not limited to silica gel or graphene heat conduction sheet.

6. The intelligent charge process method for a new type of warhead according to claim 5, characterized in that: In S3, the nano-scale high-temperature filler is uniformly dispersed in the high-energy explosive matrix at a rotation speed ≥1000 rpm, so that the glass transition of the charging material becomes a temperature increase and the linear expansion coefficient is reduced.

7. A method for intelligent charging process of a new warhead according to claim 1, characterized in that, The specific operation of the gradient temperature field curing treatment in S3 is: Place the 3D printed charging component in a programmable oven, raise the temperature from room temperature to 80°C at a heating rate of 5°C / min, keep it warm for 2 h, and then cool it to 25°C at a cooling rate of 3°C / min to form a cured structure with uniform internal stress.

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