Ultrasonic atomizer multi-parameter design method, device, equipment and storage medium

Abstract

The present invention relates to the field of parameter design technology, and in particular to a multi-parameter design method, device, equipment and storage medium for an ultrasonic atomizer. The method comprises: constructing an initial three-dimensional model based on acquired initial design parameters; performing fluid mechanics simulation analysis on the initial three-dimensional model to obtain simulation analysis results; comparing the simulation analysis results with a preset target particle diameter, and if they do not match, adjusting the initial length, initial diameter and initial fillet included in the initial design parameters in sequence to obtain adjustment parameters; adjusting the initial three-dimensional model based on the adjustment parameters, and performing fluid mechanics simulation analysis on the adjusted initial three-dimensional model to obtain adjustment analysis results; comparing the adjustment analysis results with a preset target particle diameter, and if they match, generating a design scheme for an ultrasonic atomizer based on the adjustment parameters; the method disclosed in the present application can improve the design efficiency and development efficiency of an ultrasonic atomizer, and can enable the designed ultrasonic atomizer to meet the use requirements of specific scenarios.

Description

Technical Field

[0001] The present invention relates to the technical field of parameter design, and in particular to a multi-parameter design method, device, equipment and storage medium for an ultrasonic atomizer. Background Art

[0002] Ultrasonic nebulizers convert liquids into tiny atomized particles by utilizing high-frequency vibration technology and are widely used in many fields such as medicine, industry, and agriculture. Specifically, the working principle of ultrasonic nebulizers is to efficiently convert electrical energy into mechanical vibrations through a transducer to achieve liquid atomization, which means that the transducer, as the core component of the ultrasonic nebulizer, has a decisive influence on the atomization performance of the entire device.

[0003] However, the current design process of ultrasonic nebulizers is still imperfect, especially in the atomization design involving multiple parameters, and the development of this field is still in its early stages; in order to ensure that the ultrasonic nebulizer can achieve the best atomization effect, the physical properties of the liquid, such as viscosity, surface tension, etc., must be taken into account, and the appropriate operating frequency must also be selected according to different application scenarios and specific needs; however, the current ultrasonic nebulizer designs on the market are often difficult to accurately adjust to match specific atomization particle diameters, which limits their atomization performance, resulting in the ultrasonic nebulizer being unable to fully meet the needs of various actual processes when it is working.

[0004] It can be seen that the existing technology still needs to be improved and enhanced. Summary of the invention

[0005] In order to overcome the shortcomings of the prior art, the purpose of the present invention is to provide a multi-parameter design method for an ultrasonic nebulizer, which can improve the design efficiency and development efficiency of the ultrasonic nebulizer and enable the designed ultrasonic nebulizer to meet the usage requirements of specific scenarios.

[0006] The first aspect of the present invention provides a multi-parameter design method for an ultrasonic nebulizer, comprising: obtaining initial design parameters of an ultrasonic nebulizer, and constructing an initial three-dimensional model of the ultrasonic nebulizer based on the initial design parameters; performing fluid mechanics simulation analysis on the initial three-dimensional model to obtain simulation analysis results, wherein the simulation analysis results include an initial atomized particle diameter; judging whether the initial atomized particle diameter is consistent with a preset target particle diameter, and if not, adjusting the initial length, initial diameter, and initial chamfer included in the initial design parameters in sequence to obtain adjustment parameters; adjusting the initial three-dimensional model based on the adjustment parameters, and performing fluid mechanics simulation analysis on the adjusted initial three-dimensional model to obtain adjustment analysis results, wherein the adjustment analysis results include an adjusted atomized particle diameter; judging whether the adjusted atomized particle diameter is consistent with a preset target particle diameter, and if so, generating a design scheme for the ultrasonic nebulizer based on the adjustment parameters.

[0007] Optionally, in a first implementation manner of the first aspect of the present invention, the obtaining of initial design parameters of the ultrasonic nebulizer and constructing an initial three-dimensional model of the ultrasonic nebulizer based on the initial design parameters include: obtaining the initial design parameters of the ultrasonic nebulizer, the initial design parameters including initial length, initial diameter, initial fillet and material properties; the initial length includes an initial total length and an initial large-end length, the initial diameter includes an initial large-end diameter and an initial small-end diameter, and the material properties include density and elastic modulus; based on the initial length and the initial diameter, constructing a basic geometric shape of the ultrasonic nebulizer, the basic geometric shape includes a large-end cylinder and a small-end cylinder; applying the initial fillet to the edges of the large-end cylinder and the small-end cylinder, and defining the material properties of the large-end cylinder and the small-end cylinder to obtain a three-dimensional model to be divided; based on a preset meshing rule, meshing the three-dimensional model to be divided to obtain an initial three-dimensional model.

[0008] Optionally, in a second implementation method of the first aspect of the present invention, the initial three-dimensional model is subjected to fluid mechanics simulation analysis to obtain simulation analysis results, which include the initial atomized particle diameter, including: setting simulation parameters, wherein the simulation parameters include fluid properties, boundary conditions, grid division rules, time step, number of iterations, and solver type; using fluid mechanics simulation software to perform fluid mechanics simulation analysis on the initial three-dimensional model based on the set simulation parameters; when the number of solutions executed by the fluid mechanics simulation software reaches the number of iterations included in the simulation parameters, outputting the simulation analysis results, which include the initial atomized particle diameter.

[0009] Optionally, in a third implementation of the first aspect of the present invention, the determination of whether the initial atomized particle diameter is consistent with a preset target particle diameter, if not, adjusting the initial length, initial diameter and initial chamfer included in the initial design parameters in sequence to obtain adjustment parameters, including: determining whether the initial atomized particle diameter is consistent with a preset target particle diameter, if consistent, generating a design scheme of the ultrasonic atomizer based on the initial design parameters; if inconsistent, obtaining a length combinable range of the initial length based on an optimization algorithm, and adjusting the initial length based on the length combinable range to obtain an adjusted length; adjusting the initial three-dimensional model based on the adjusted length to obtain a primary adjustment model, and performing fluid mechanics simulation analysis on the primary adjustment model to obtain a primary adjustment result; using an optimization algorithm to calculate a diameter combinable range and a chamfer combinable range based on the primary adjustment result; adjusting the initial diameter and the initial chamfer based on the diameter combinable range and the chamfer combinable range to obtain adjustment parameters, wherein the adjustment parameters include adjusting the length, adjusting the large end diameter, adjusting the small end diameter and adjusting the chamfer.

[0010] Optionally, in a fourth implementation of the first aspect of the present invention, the optimization algorithm is used to calculate the diameter combination range and the rounding combination range based on a single adjustment result, including: constructing an objective function according to a preset target particle diameter, and obtaining preset constraints; setting algorithm parameters, wherein the algorithm parameters include a population size, a number of iterations, and a learning factor; based on the single adjustment result, a genetic algorithm is used to iterate according to the objective function, constraints, and algorithm parameters, and during the iteration process, selection, crossover, and mutation operations are performed; when the number of iterations in the algorithm parameters is reached, the iteration is stopped, and the diameter combination range and the rounding combination range are output.

[0011] Optionally, in a fifth implementation of the first aspect of the present invention, the initial three-dimensional model is adjusted based on the adjustment parameters, and a fluid mechanics simulation analysis is performed on the adjusted initial three-dimensional model to obtain an adjustment analysis result, wherein the adjustment analysis result includes the diameter of the atomized particles after adjustment, including: adjusting the initial three-dimensional model based on the adjustment parameters, and meshing the adjusted initial three-dimensional model based on preset meshing rules to obtain an adjusted three-dimensional model; using fluid mechanics simulation software to perform fluid mechanics simulation analysis on the adjusted three-dimensional model based on the set simulation parameters; when the number of solutions executed by the fluid mechanics simulation software reaches the number of iterations included in the simulation parameters, outputting the adjustment analysis result, wherein the adjustment analysis result includes the diameter of the atomized particles after adjustment.

[0012] Optionally, in a sixth implementation of the first aspect of the present invention, the determining whether the adjusted atomized particle diameter is consistent with a preset target particle diameter, and if so, generating a design scheme of an ultrasonic nebulizer based on the adjustment parameters, includes: determining whether the adjusted atomized particle diameter is consistent with a preset target particle diameter, and if so, generating a design scheme of an ultrasonic nebulizer based on the adjustment parameters; if not, replacing the initial design parameters with the adjustment parameters, and returning to execute the adjustment of the initial length, initial diameter and initial chamfer included in the initial design parameters in sequence to obtain the adjustment parameters.

[0013] The second aspect of the present invention provides a multi-parameter design device for an ultrasonic nebulizer, comprising: a construction module, used to obtain initial design parameters of the ultrasonic nebulizer, and construct an initial three-dimensional model of the ultrasonic nebulizer based on the initial design parameters; a simulation module, used to perform fluid mechanics simulation analysis on the initial three-dimensional model to obtain simulation analysis results, wherein the simulation analysis results include an initial atomized particle diameter; an adjustment module, used to determine whether the initial atomized particle diameter is consistent with a preset target particle diameter, and if not, to adjust the initial length, initial diameter and initial chamfer included in the initial design parameters in sequence to obtain adjustment parameters; an analysis module, used to adjust the initial three-dimensional model based on the adjustment parameters, and perform fluid mechanics simulation analysis on the adjusted initial three-dimensional model to obtain adjustment analysis results, wherein the adjustment analysis results include an adjusted atomized particle diameter; a generation module, used to determine whether the adjusted atomized particle diameter is consistent with a preset target particle diameter, and if consistent, to generate a design scheme for the ultrasonic nebulizer based on the adjustment parameters.

[0014] The third aspect of the present invention provides an ultrasonic nebulizer multi-parameter design device, which includes: a memory and at least one processor, wherein the memory stores instructions; at least one of the processors calls the instructions in the memory so that the ultrasonic nebulizer multi-parameter design device performs each step of the ultrasonic nebulizer multi-parameter design method described above.

[0015] A fourth aspect of the present invention provides a computer-readable storage medium having instructions stored thereon, and when the instructions are executed by a processor, the steps of any of the above-mentioned multi-parameter design methods for an ultrasonic nebulizer are implemented.

[0016] In the technical solution of the present invention, by adopting a multi-parameter collaborative design method, the technical defect of the fixed particle diameter of the existing ultrasonic nebulizer can be effectively solved, the precise adjustment of the particle size can be achieved, the specific needs of different atomization application scenarios can be met, and the applicability and performance of the ultrasonic nebulizer can be improved. For example, it can meet the use requirements of larger droplet size and higher atomization rate, or meet the use requirements of smaller droplet size and better atomization quality; further, the method disclosed in the present application does not require the development of a new model of ultrasonic nebulizer, and can be achieved by adjusting parameters based on the existing structure, thereby shortening the development cycle and reducing manufacturing costs; compared with the use of a resonant cavity and other methods, the present method does not require the addition of additional devices, and the structure is simpler and more compact; and parametric modeling also enables designers to clearly grasp the influence of various geometric parameters on the diameter of the atomized particles, providing guidance for the development of new ultrasonic nebulizers. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1A first flow chart of a multi-parameter design method for an ultrasonic atomizer provided by an embodiment of the present invention;

[0018] Figure 2 A second flow chart of the multi-parameter design method for an ultrasonic atomizer provided in an embodiment of the present invention;

[0019] Figure 3 A third flow chart of the multi-parameter design method for an ultrasonic atomizer provided in an embodiment of the present invention;

[0020] Figure 4 A fourth flow chart of the multi-parameter design method for an ultrasonic atomizer provided in an embodiment of the present invention;

[0021] Figure 5 A fifth flow chart of the multi-parameter design method for an ultrasonic atomizer provided in an embodiment of the present invention;

[0022] Figure 6 A sixth flow chart of the multi-parameter design method for an ultrasonic atomizer provided in an embodiment of the present invention;

[0023] Figure 7 A seventh flow chart of the multi-parameter design method for an ultrasonic atomizer provided in an embodiment of the present invention;

[0024] Figure 8 A schematic diagram of the structure of a multi-parameter design device for an ultrasonic atomizer provided in an embodiment of the present invention;

[0025] Fig. 9 A schematic diagram of the structure of a multi-parameter design device for an ultrasonic atomizer provided in an embodiment of the present invention;

[0026] Fig.10 This is a schematic structural diagram of the ultrasonic atomizer provided by the present invention. DETAILED DESCRIPTION

[0027] The present invention provides a multi-parameter design method, device, equipment and storage medium for an ultrasonic atomizer. In the present invention, the terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" or "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0028] For ease of understanding, the specific process of the embodiment of the present invention is described below. Figure 1 , an embodiment of the multi-parameter design method of an ultrasonic atomizer in the embodiment of the present invention includes:

[0029] 101. Obtaining initial design parameters of an ultrasonic nebulizer, and constructing an initial three-dimensional model of the ultrasonic nebulizer based on the initial design parameters;

[0030] 102. Perform fluid mechanics simulation analysis on the initial three-dimensional model to obtain simulation analysis results, wherein the simulation analysis results include initial atomized particle diameters;

[0031] In this embodiment, the diameter of the atomized particles can be accurately predicted and controlled by performing fluid mechanics simulation analysis on the initial three-dimensional model.

[0032] 103. Determine whether the initial atomized particle diameter is consistent with the preset target particle diameter. If not, adjust the initial length, initial diameter and initial rounding included in the initial design parameters in sequence to obtain adjustment parameters;

[0033] In this embodiment, the performance of the ultrasonic nebulizer can be optimized by iteratively adjusting the design parameters such as the initial length, initial diameter and initial chamfer. Specifically, the atomization efficiency and effect of the ultrasonic nebulizer are adjusted so that the designed ultrasonic nebulizer can meet the usage requirements of the scene.

[0034] 104. Adjust the initial three-dimensional model based on the adjustment parameters, and perform fluid mechanics simulation analysis on the adjusted initial three-dimensional model to obtain an adjustment analysis result, wherein the adjustment analysis result includes a diameter of atomized particles after adjustment;

[0035] In this embodiment, by repeatedly executing step 103 and step 104, the number of falls of the physical prototype can be reduced through simulation analysis before actual manufacturing and testing, thereby saving R&D time and reducing R&D costs.

[0036] 105. Determine whether the adjusted atomized particle diameter is consistent with the preset target particle diameter. If consistent, generate a design plan of the ultrasonic atomizer based on the adjustment parameters.

[0037] The present application discloses a multi-parameter design method for an ultrasonic nebulizer. By adopting a multi-parameter collaborative design method, the technical defect of the fixed particle diameter of the existing ultrasonic nebulizer can be effectively solved, the precise adjustment of the particle size can be achieved, the specific needs of different atomization application scenarios can be met, and the applicability and performance of the ultrasonic nebulizer can be improved. For example, it can meet the use requirements of larger droplet diameter and higher atomization rate, or meet the use requirements of smaller droplet diameter and better atomization quality. Furthermore, the method disclosed in the present application does not require the development of a new type of ultrasonic nebulizer, and can be achieved by adjusting parameters based on the existing structure, thereby shortening the development cycle and reducing manufacturing costs. Compared with the use of a resonant cavity and other methods, the present method does not require the addition of additional devices, and the structure is simpler and more compact. Moreover, parametric modeling enables designers to clearly grasp the influence of various geometric parameters on the diameter of the atomized particles, providing guidance for the development of new ultrasonic nebulizers.

[0038] See also Figure 2 The second embodiment of the multi-parameter design method of an ultrasonic atomizer in the embodiment of the present invention includes:

[0039] 201. Obtain initial design parameters of the ultrasonic atomizer, wherein the initial design parameters include initial length, initial diameter, initial rounding and material properties; the initial length includes initial total length and initial large end length, the initial diameter includes initial large end diameter and initial small end diameter, and the material properties include density and elastic modulus;

[0040] 202. Based on the initial length and the initial diameter, construct a basic geometric shape of the ultrasonic atomizer, wherein the basic geometric shape includes a large-end cylinder and a small-end cylinder;

[0041] 203. Apply the initial filleting to the edges of the large-end cylinder and the small-end cylinder, and define the material properties of the large-end cylinder and the small-end cylinder to obtain a three-dimensional model to be divided;

[0042] In this embodiment, initial filleting is applied to the edges of the large-end cylinder and the small-end cylinder to reduce stress concentration and improve the strength and durability of the structure; further, computer-aided software can be used to complete the construction of the three-dimensional model to be divided.

[0043] 204. Based on a preset meshing rule, mesh the three-dimensional model to be divided to obtain an initial three-dimensional model;

[0044] In this embodiment, the preset meshing rules include element size, shape and gradient rate; the Delaunay triangulation algorithm is used to mesh the three-dimensional model to be divided based on the preset meshing rules. Meshing is the discretization of a continuous geometric model into a finite number of small units for subsequent fluid mechanics analysis, which can reduce the consumption of computing resources and improve analysis efficiency. Appropriate meshing can ensure sufficient resolution in key areas and improve the accuracy and reliability of analysis results.

[0045] See also Figure 3 The third embodiment of the multi-parameter design method of an ultrasonic atomizer in the embodiment of the present invention includes:

[0046] 301. Setting simulation parameters, wherein the simulation parameters include fluid properties, boundary conditions, grid division rules, time step, number of iterations, and solver type;

[0047] In this embodiment, the simulation parameters can be pre-set by the designer according to the simulation requirements; the fluid properties define the physical properties of the fluid, such as density, viscosity, etc., and the fluid properties have a direct impact on the fluid flow and atomization process; the boundary conditions describe the physical constraints imposed on the boundary of the fluid domain, such as speed, pressure, temperature, etc., and the boundary conditions determine the interaction between the fluid and the outside world; the grid division rule determines the discretization degree of the calculation domain, and appropriate grid division can improve the calculation accuracy and efficiency; the time step controls the speed of time advancement during the simulation process, affecting the solution accuracy and stability of time-dependent problems; the number of iterations refers to the number of repeated calculations required to achieve convergence when solving nonlinear problems, which is related to the convergence speed of the solver and the complexity of the problem; the solver can be a linear programming solver or a simulated annealing solver. The solver type determines the method of solving the equation. Different solvers are suitable for different types of problems, and each solver has its own advantages in terms of calculation efficiency and stability.

[0048] 302. Using fluid mechanics simulation software, perform fluid mechanics simulation analysis on the initial three-dimensional model based on the set simulation parameters;

[0049] In this embodiment, the fluid mechanics simulation software may be ANSYS Fluent simulation software.

[0050] 303. When the number of solutions executed by the fluid mechanics simulation software reaches the number of iterations included in the simulation parameters, the simulation analysis results are output, and the simulation analysis results include the initial atomized particle diameter.

[0051] See also Figure 4 The fourth embodiment of the multi-parameter design method of an ultrasonic atomizer in the embodiment of the present invention includes:

[0052] 401. Determine whether the initial atomized particle diameter is consistent with a preset target particle diameter. If consistent, generate a design scheme of the ultrasonic atomizer based on the initial design parameters;

[0053] 402. If they are inconsistent, obtain a length combinable range of the initial length based on an optimization algorithm, and adjust the initial length based on the length combinable range to obtain an adjusted length, wherein the adjusted length includes adjusting the overall length and adjusting the large end length;

[0054] In this embodiment, a first objective function is constructed according to a preset target particle diameter, and the constructed first objective function can reflect the relationship between the particle diameter and the length combination, and can guide the length adjustment to achieve the target particle diameter; a preset constraint condition is obtained, and the preset condition includes a minimum value, a maximum value, an allowable range of the particle diameter, etc.; an algorithm parameter is set, and the algorithm parameter includes a population size, an iteration number, and a learning factor, wherein the population size determines the number of individuals involved in the calculation in each iteration, the iteration number determines the total number of rounds of the algorithm operation, and the learning factor affects the search ability and convergence speed of the algorithm; a genetic algorithm is used to iterate according to the objective function, the constraint condition, and the algorithm parameter, and selection, crossover, and mutation operations are performed during the iteration process, specifically, the selection operation determines which individuals can be retained to the next generation according to the fitness of the individual; the crossover operation is to generate a new individual by combining part of the genes of two individuals; the mutation operation is to randomly change some genes of the individual to increase the diversity of the population; when the iteration number in the algorithm parameter is reached, the iteration is stopped, and the length combinable range is output; a combination can be randomly selected from the length combinable range as the adjustment length.

[0055] 403. Adjust the initial three-dimensional model based on the adjustment length to obtain a primary adjustment model, and perform fluid mechanics simulation analysis on the primary adjustment model to obtain a primary adjustment result;

[0056] 404. Using an optimization algorithm, a diameter combination range and a rounding combination range are calculated based on a one-time adjustment result;

[0057] 405. Adjust the initial diameter and the initial chamfer based on the diameter combination range and the chamfer combination range to obtain adjustment parameters, where the adjustment parameters include adjusting the length, adjusting the large end diameter, adjusting the small end diameter, and adjusting the chamfer.

[0058] See also Figure 5 The fifth embodiment of the multi-parameter design method of an ultrasonic atomizer in the embodiment of the present invention includes:

[0059] 501. Construct an objective function according to a preset target particle diameter, and obtain preset constraint conditions;

[0060] In this embodiment, the objective function can reflect the relationship between the particle diameter and the diameter and the rounding, and can guide the length adjustment to achieve the target particle diameter.

[0061] 502. Setting algorithm parameters, wherein the algorithm parameters include population size, number of iterations, and learning factor;

[0062] 503. Based on the result of one adjustment, a genetic algorithm is used to iterate according to the objective function, constraint conditions and algorithm parameters. In the iterative process, selection, crossover and mutation operations are performed;

[0063] In this embodiment, through the selection operation, individuals with high fitness can be retained to ensure the stable transmission of excellent genes; the crossover operation allows gene combinations between different individuals, increases the diversity of the population, and helps to explore new areas in the solution space; the mutation operation introduces randomness, which can prevent the algorithm from converging to the local optimal solution too early, ensuring that the population can continue to explore new possibilities; through the synergistic effect of selection, crossover and mutation operations, the global search ability and convergence speed of the algorithm are jointly promoted, and the probability of finding the global optimal solution is increased.

[0064] 504. When the number of iterations in the algorithm parameters is reached, the iteration is stopped, and the diameter combination range and the fillet combination range are output.

[0065] See also Figure 6 The sixth embodiment of the multi-parameter design method of an ultrasonic atomizer in the embodiment of the present invention includes:

[0066] 601. Adjust the initial three-dimensional model based on the adjustment parameters, and mesh the adjusted initial three-dimensional model based on a preset meshing rule to obtain an adjusted three-dimensional model;

[0067] In this embodiment, the grid division principle of this step is consistent with the grid division principle in step 204 .

[0068] 602. Using fluid mechanics simulation software, perform fluid mechanics simulation analysis on the adjusted three-dimensional model based on the set simulation parameters;

[0069] 603. When the number of solutions executed by the fluid mechanics simulation software reaches the number of iterations included in the simulation parameters, an adjustment analysis result is output, wherein the adjustment analysis result includes the diameter of the atomized particles after adjustment.

[0070] See also Figure 7 The seventh embodiment of the multi-parameter design method of an ultrasonic atomizer in the embodiment of the present invention includes:

[0071] 701. Determine whether the adjusted atomized particle diameter is consistent with a preset target particle diameter. If consistent, generate a design scheme of the ultrasonic atomizer based on the adjustment parameters.

[0072] 702. If they are not consistent, the initial design parameters are replaced by the adjustment parameters, and the process returns to sequentially adjust the initial length, initial diameter and initial fillet included in the initial design parameters to obtain the adjustment parameters; that is, the process returns to repeatedly execute steps 103 to 105.

[0073] In this embodiment, by continuously adjusting and optimizing the initial design parameters, the design requirements and performance standards can be more accurately met, so that the atomization particle size of the designed ultrasonic atomizer can gradually approach the preset target particle diameter; this method ensures the flexibility and iteration of the design process, and helps to improve the design quality and efficiency.

[0074] The above describes the multi-parameter design method of the ultrasonic atomizer in the embodiment of the present invention. The following describes the multi-parameter design device of the ultrasonic atomizer in the embodiment of the present invention. Figure 8 In one embodiment of the present invention, an ultrasonic atomizer multi-parameter design device comprises:

[0075] A construction module 801 is used to obtain initial design parameters of the ultrasonic nebulizer and construct an initial three-dimensional model of the ultrasonic nebulizer based on the initial design parameters;

[0076] A simulation module 802 is used to perform fluid mechanics simulation analysis on the initial three-dimensional model to obtain simulation analysis results, wherein the simulation analysis results include the initial atomized particle diameter;

[0077] The adjustment module 803 is used to determine whether the initial atomized particle diameter is consistent with the preset target particle diameter. If not, the initial length, initial diameter and initial rounding included in the initial design parameters are adjusted in sequence to obtain adjustment parameters;

[0078] The analysis module 804 is used to adjust the initial three-dimensional model based on the adjustment parameters, and perform fluid mechanics simulation analysis on the adjusted initial three-dimensional model to obtain an adjustment analysis result, wherein the adjustment analysis result includes the diameter of the atomized particles after adjustment;

[0079] The generation module 805 is used to determine whether the adjusted atomized particle diameter is consistent with the preset target particle diameter. If consistent, a design scheme of the ultrasonic atomizer is generated based on the adjustment parameters.

[0080] Figure 8 The structure of the ultrasonic nebulizer multi-parameter design device shown does not constitute a limitation on the ultrasonic nebulizer multi-parameter design device, and can implement the steps of the ultrasonic nebulizer multi-parameter design method provided by the above-mentioned method embodiments.

[0081] above Figure 8The ultrasonic atomizer multi-parameter design device in the embodiment of the present invention is described in detail from the perspective of modular functional entities. The ultrasonic atomizer multi-parameter design device in the embodiment of the present invention is described in detail from the perspective of hardware processing.

[0082] Fig. 9 : is a structural schematic diagram of an ultrasonic nebulizer multi-parameter design device provided by an embodiment of the present invention. The ultrasonic nebulizer multi-parameter design device 900 may have relatively large differences due to different configurations or performances, and may include one or more processors (central processing units, CPU) 910 (for example, one or more processors) and a memory 920, and one or more storage media 930 (for example, one or more mass storage devices) storing application programs 933 or data 932. Among them, the memory 920 and the storage medium 930 can be short-term storage or persistent storage. The program stored in the storage medium 930 may include one or more modules (not shown in the figure), and each module may include a series of instruction operations in the ultrasonic nebulizer multi-parameter design device 900. Furthermore, the processor 910 can be configured to communicate with the storage medium 930, and execute a series of instruction operations in the storage medium 930 on the ultrasonic nebulizer multi-parameter design device 900 to implement the steps of the ultrasonic nebulizer multi-parameter design method provided by the above-mentioned method embodiments.

[0083] The ultrasonic atomizer multi-parameter design device 900 may also include one or more power supplies 940, one or more wired or wireless network interfaces 950, one or more input and output interfaces 960, and / or one or more operating systems 931, such as Windows Serve, Mac OS X, Unix, Linux, FreeBSD, etc. It will be appreciated by those skilled in the art that Fig. 9 The structure of the ultrasonic nebulizer multi-parameter design device shown does not constitute a limitation on the ultrasonic nebulizer multi-parameter design device, and may include more or fewer components than shown in the figure, or a combination of certain components, or a different arrangement of components.

[0084] The present invention also provides a computer-readable storage medium, which may be a non-volatile computer-readable storage medium or a volatile computer-readable storage medium. Instructions are stored in the computer-readable storage medium. When the instructions are executed on a computer, the computer executes the steps of the ultrasonic nebulizer multi-parameter design method.

[0085] See also Fig.10 , Fig.10The schematic diagram of the structure of the ultrasonic atomizer provided by the present invention, wherein D10 is the initial large end diameter, D20 is the initial small end diameter, L10 is the initial overall length, L20 is the initial large end length, and R0 is the initial rounding; taking an ultrasonic atomizer for a wafer glue spraying machine as an example, the specific implementation of the method disclosed in the present application is explained:

[0086] The initial design parameters of the ultrasonic atomizer were obtained, including: length L10 = 132 mm, L20 = 48.5 mm, diameter D10 = 34 mm, D20 = 22 mm, rounding R0 = 83.1 mm, and the material was titanium alloy (ρ = 4200 kg / m3, E = 110 GPa, Poisson's ratio 0.28); and the preset target particle diameter d0 was 64.5 um;

[0087] Based on the initial design parameters, an initial three-dimensional model was constructed and fluid dynamics analysis was performed. The simulation analysis results showed that the closest atomized particle diameter of the ultrasonic atomizer under the initial design parameters was 66.4um, which deviated from the target particle diameter.

[0088] Therefore, the length of the ultrasonic atomizer was adjusted to L11 = 129.5 mm and L21 = 50.6 mm. The initial three-dimensional model was adjusted based on the adjusted length, and then the fluid dynamics analysis was performed. At this time, the closest particle diameter in the adjustment result was 64.8 um, which was closer to the target particle diameter.

[0089] Then, the optimization algorithm is used to obtain the diameter combination range and the fillet combination range, and the diameter is adjusted to D11=34.3mm, D21=20.5mm, and the fillet is adjusted to R1=88mm at the same time. The initial three-dimensional model is adjusted based on the adjusted length, adjusted diameter and adjusted fillet, and then the fluid dynamics analysis is performed. In the adjusted analysis results obtained at this time, the particle diameter displayed is 64.46um, which can be regarded as equal to the target particle diameter of 64.5um;

[0090] Therefore, length L1 = 129.5 mm, L2 = 50.6 mm, D1 = 34.3 mm, D2 = 20.5 mm and R1 = 88 mm were taken as the final ultrasonic nebulizer structural parameters.

[0091] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described system, device, or unit can refer to the corresponding process in the aforementioned method embodiment and will not be repeated here.

[0092] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art or the whole or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk and other media that can store program code.

[0093] Finally, it should be noted that the above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-parameter design method for an ultrasonic atomizer, characterized in that: include: Obtaining initial design parameters of the ultrasonic nebulizer, and constructing an initial three-dimensional model of the ultrasonic nebulizer based on the initial design parameters, specifically: Obtaining initial design parameters of the ultrasonic atomizer, wherein the initial design parameters include initial length, initial diameter, initial rounding and material properties; the initial length includes initial total length and initial large end length, the initial diameter includes initial large end diameter and initial small end diameter, and the material properties include density and elastic modulus; Based on the initial length and the initial diameter, constructing a basic geometric shape of the ultrasonic atomizer, the basic geometric shape comprising a large-end cylinder and a small-end cylinder; Applying the initial fillet to the edges of the large-end cylinder and the small-end cylinder, and defining the material properties of the large-end cylinder and the small-end cylinder to obtain a three-dimensional model to be divided; Based on the preset meshing rules, meshing is performed on the three-dimensional model to be divided to obtain an initial three-dimensional model; Performing fluid mechanics simulation analysis on the initial three-dimensional model to obtain simulation analysis results, wherein the simulation analysis results include initial atomized particle diameters; Determine whether the initial atomized particle diameter is consistent with the preset target particle diameter. If not, adjust the initial length, initial diameter and initial rounding of the initial design parameters in sequence to obtain adjustment parameters, specifically: Determine whether the initial atomized particle diameter is consistent with the preset target particle diameter. If not, obtain a length combinable range of the initial length based on an optimization algorithm, and adjust the initial length based on the length combinable range to obtain an adjusted length. The initial three-dimensional model is adjusted based on the adjustment length to obtain a primary adjustment model, and a fluid mechanics simulation analysis is performed on the primary adjustment model to obtain a primary adjustment result; Adopting optimization algorithm, the diameter combination range and rounding combination range are calculated based on the result of one adjustment; Adjust the initial diameter and the initial chamfer based on the diameter combinable range and the chamfer combinable range to obtain adjustment parameters, wherein the adjustment parameters include adjusting the length, adjusting the large end diameter, adjusting the small end diameter and adjusting the chamfer; Adjusting the initial three-dimensional model based on the adjustment parameters, and performing fluid mechanics simulation analysis on the adjusted initial three-dimensional model to obtain an adjustment analysis result, wherein the adjustment analysis result includes a diameter of atomized particles after adjustment; It is determined whether the adjusted atomized particle diameter is consistent with the preset target particle diameter. If consistent, a design scheme of the ultrasonic atomizer is generated based on the adjustment parameters.

2. The multi-parameter design method for ultrasonic atomizer according to claim 1, characterized in that: The fluid mechanics simulation analysis is performed on the initial three-dimensional model to obtain simulation analysis results, wherein the simulation analysis results include the initial atomized particle diameter, including: Setting simulation parameters, including fluid properties, boundary conditions, meshing rules, time step, number of iterations, and solver type; Use fluid mechanics simulation software to perform fluid mechanics simulation analysis on the initial three-dimensional model based on the set simulation parameters; When the number of solutions executed by the fluid mechanics simulation software reaches the number of iterations included in the simulation parameters, the simulation analysis results are output, and the simulation analysis results include the initial atomized particle diameter.

3. The multi-parameter design method for ultrasonic atomizer according to claim 1, characterized in that: The step of determining whether the initial atomized particle diameter is consistent with the preset target particle diameter further includes: It is determined whether the initial atomized particle diameter is consistent with the preset target particle diameter. If so, a design scheme of the ultrasonic atomizer is generated based on the initial design parameters.

4. The multi-parameter design method for ultrasonic atomizer according to claim 2, characterized in that: The optimization algorithm is used to calculate the diameter combination range and the rounding combination range based on the result of one adjustment, including: Construct an objective function according to a preset target particle diameter and obtain preset constraint conditions; Setting algorithm parameters, including population size, number of iterations, and learning factor; Based on the result of one adjustment, a genetic algorithm is used to iterate according to the objective function, constraints and algorithm parameters. During the iteration process, selection, crossover and mutation operations are performed. When the number of iterations in the algorithm parameters is reached, the iteration is stopped and the diameter combinable range and the rounding combinable range are output.

5. The multi-parameter design method for ultrasonic atomizer according to claim 2, characterized in that: The initial three-dimensional model is adjusted based on the adjustment parameters, and a fluid mechanics simulation analysis is performed on the adjusted initial three-dimensional model to obtain an adjustment analysis result, wherein the adjustment analysis result includes the diameter of the atomized particles after adjustment, including: The initial three-dimensional model is adjusted based on the adjustment parameters, and the adjusted initial three-dimensional model is meshed based on a preset meshing rule to obtain an adjusted three-dimensional model; Use fluid mechanics simulation software to perform fluid mechanics simulation analysis on the adjusted three-dimensional model based on the set simulation parameters; When the number of solutions executed by the fluid mechanics simulation software reaches the number of iterations included in the simulation parameters, an adjustment analysis result is output, and the adjustment analysis result includes the diameter of the atomized particles after adjustment.

6. The multi-parameter design method for ultrasonic atomizer according to claim 1, characterized in that: The step of determining whether the adjusted atomized particle diameter is consistent with a preset target particle diameter, and if consistent, generating a design scheme of an ultrasonic atomizer based on the adjustment parameters, comprises: Determine whether the adjusted atomized particle diameter is consistent with the preset target particle diameter, and if so, generate a design scheme of the ultrasonic atomizer based on the adjustment parameters; If they are inconsistent, the initial design parameters are replaced by the adjustment parameters, and the process returns to sequentially adjust the initial length, initial diameter and initial fillet included in the initial design parameters to obtain the adjustment parameters.

7. A multi-parameter design device for an ultrasonic atomizer, characterized in that: include: A construction module is used to obtain initial design parameters of an ultrasonic atomizer, and to construct an initial three-dimensional model of the ultrasonic atomizer based on the initial design parameters, specifically: obtaining initial design parameters of the ultrasonic atomizer, the initial design parameters including initial length, initial diameter, initial fillet and material properties; the initial length includes initial total length and initial large end length, the initial diameter includes initial large end diameter and initial small end diameter, and the material properties include density and elastic modulus; based on the initial length and initial diameter, constructing a basic geometric shape of the ultrasonic atomizer, the basic geometric shape includes a large end cylinder and a small end cylinder; applying the initial fillet to the edges of the large end cylinder and the small end cylinder, and defining the material properties of the large end cylinder and the small end cylinder to obtain a three-dimensional model to be divided; based on a preset meshing rule, meshing the three-dimensional model to be divided to obtain an initial three-dimensional model; A simulation module, used for performing fluid mechanics simulation analysis on the initial three-dimensional model to obtain simulation analysis results, wherein the simulation analysis results include the initial atomized particle diameter; The adjustment module is used to determine whether the initial atomized particle diameter is consistent with the preset target particle diameter. If not, the initial length, initial diameter and initial chamfer included in the initial design parameters are adjusted in sequence to obtain adjustment parameters. Specifically: determine whether the initial atomized particle diameter is consistent with the preset target particle diameter. If not, the length combinable range of the initial length is obtained based on the optimization algorithm, and the initial length is adjusted based on the length combinable range to obtain the adjusted length; the initial three-dimensional model is adjusted based on the adjusted length to obtain an adjusted model, and a fluid mechanics simulation analysis is performed on the adjusted model to obtain an adjusted result; the optimization algorithm is used to calculate the diameter combinable range and the chamfer combinable range based on the adjustment result; the initial diameter and the initial chamfer are adjusted based on the diameter combinable range and the chamfer combinable range to obtain adjustment parameters, and the adjustment parameters include adjusting the length, adjusting the large end diameter, adjusting the small end diameter and adjusting the chamfer; An analysis module, used for adjusting the initial three-dimensional model based on the adjustment parameters, and performing fluid mechanics simulation analysis on the adjusted initial three-dimensional model to obtain an adjustment analysis result, wherein the adjustment analysis result includes a diameter of atomized particles after adjustment; The generation module is used to determine whether the adjusted atomized particle diameter is consistent with the preset target particle diameter. If consistent, a design scheme of the ultrasonic atomizer is generated based on the adjustment parameters.

8. An ultrasonic atomizer multi-parameter design device, characterized in that: The ultrasonic atomizer multi-parameter design device comprises: a memory and at least one processor, wherein instructions are stored in the memory; At least one of the processors calls the instructions in the memory to enable the ultrasonic nebulizer multi-parameter design device to perform each step of the ultrasonic nebulizer multi-parameter design method according to any one of claims 1 to 6.

9. A computer-readable storage medium having instructions stored thereon, characterized in that: When the instructions are executed by the processor, the various steps of the multi-parameter design method for an ultrasonic nebulizer as described in any one of claims 1 to 6 are implemented.

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