CN113392481B - Axial pressing force calculation method, device and terminal of single-layer type voltage regulating coil - Google Patents
Axial pressing force calculation method, device and terminal of single-layer type voltage regulating coil Download PDFInfo
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Abstract
The invention provides an axial pressing force calculation method, an axial pressing force calculation device and an axial pressing force calculation terminal for a single-layer pressure regulating coil. The method comprises the following steps: a physical field simulation software is adopted to construct a layer type pressure regulating coil mechanical simulation model through a construction module; acquiring a layer type pressure regulating coil consistent with a layer type pressure regulating coil mechanical simulation model, and correcting material parameters of the layer type pressure regulating coil through testing by a testing module to obtain a pressure coefficient of the corrected layer type pressure regulating coil; according to the pressure coefficient, the calculation module calculates the axial pressing force of the single-layer type pressure regulating coil, so that the accurate axial pressing force of the single-layer type pressure regulating coil can be obtained, and the problem that the axial pressing force of the single-layer type pressure regulating coil is not calculated in the prior art is solved.
Description
Technical Field
The invention relates to the technical field of axial pressing force of pressure regulating coils, in particular to a method, a device and a terminal for calculating the axial pressing force of a single-layer pressure regulating coil.
Background
At present, the axial pressing force of the coil is calculated only for a cake-type pressure regulating coil, and the cake-type pressure regulating coil has a specific calculation method and a specification of unit area pressure.
Set up the oil duct cushion between cake formula pressure regulating coil's the wire and the wire, when cake formula pressure regulating coil axial pressurized, the pressurized point is concentrated on the contact surface of oil duct cushion and line cake, for the not atress of unsettled state between the oil duct, and oil duct cushion radial height is higher than 4 ~ 5mm of line cake moreover, even there is 2 ~ 3 mm's high deviation in different line cakes, the radial height of wire can not exceed the oil duct cushion yet, consequently the pressure that the unevenness wire receives can be undertaken by the cushion, can not extrusion deformation between different line cakes. In addition, the coil outlet position is positioned between the oil duct cushion blocks, the coil outlet is not stressed in the axial compression process, the outlet position is deformed due to bending of leads and radial thickening of wrapping insulation, and the axial stability of the coil cannot be influenced even if the outlet position does not exceed the height of the oil duct cushion blocks.
The structure of the layered voltage regulating coil is different from that of the cake-type voltage regulating coil, and the layered voltage regulating coil is in direct contact with a lead. When the coil is axially pressed, all positions along the circumferential direction bear pressure together, if the flatness of the lead is inconsistent, the local stress surface is reduced, the local pressure is overlarge and the pressure is uneven, and the lead at the coil outlet is deformed due to bending of the lead, so that the local height is increased due to the wrapping insulation, and the coil is a weak link in the axial pressing process. Therefore, the axial pressing force of the layered pressure regulating coil can not be calculated in a cake type pressure regulating coil axial pressing force calculation mode, and an axial pressing force calculation method of the layered pressure regulating coil does not exist in the prior art.
Disclosure of Invention
The embodiment of the invention provides a method, a device and a terminal for calculating axial pressing force of a single-layer type pressure regulating coil, and aims to solve the problem that no calculation mode of axial pressing force of the layer type pressure regulating coil exists in the prior art.
In a first aspect, an embodiment of the present invention provides a method for calculating an axial pressing force of a single-layer voltage regulating coil, including:
adopting physical field simulation software to construct a layer type pressure regulating coil mechanical simulation model;
acquiring a layer type pressure regulating coil consistent with the layer type pressure regulating coil mechanical simulation model, and correcting material parameters of the layer type pressure regulating coil through testing to obtain a pressure coefficient of the corrected layer type pressure regulating coil;
and calculating to obtain the axial pressing force of the single-layer pressure regulating coil according to the pressure coefficient.
In a possible implementation manner, the building a layered pressure regulating coil mechanical simulation model by using physical field simulation software includes:
setting coil materials, coil variables, compression surfaces and all compression area grids in the coil of the layered pressure regulating coil, and constructing a layered pressure regulating coil mechanical simulation model based on physical field simulation software.
In a possible implementation manner, after the physical field simulation software is used to construct the layered voltage regulating coil mechanical simulation model, the method further includes:
and calculating the pressure limit load of a coil model of the layer type pressure regulating coil mechanical simulation model according to a solid mechanical physical field equation.
In a possible implementation manner, the calculating a compressive limit load of a coil model of the layered pressure regulating coil mechanical simulation model according to a solid mechanical physical field equation includes:
according to
Calculating the pressure limit load of a coil model of the layer type pressure regulating coil mechanical simulation model;
wherein O represents the compressive ultimate load of a coil model of the layered pressure regulating coil mechanical simulation model, S represents the stress tensor of the coil model,
showing divergence of stress tensor of the coil model, F showing an external force matrix corresponding to an external force applied to the coil model, C showing a rigidity matrix corresponding to rigidity of the coil material, epsilon showing elastic strain tensor of the coil material, mu showing a displacement vector of the coil deformed by the external force,
the gradient of a displacement vector of the coil which is extruded and deformed by an external force is shown, T represents the rotation quantity of the matrix, E represents the Young modulus of the coil material, and v represents the Poisson ratio of the coil material.
In a possible implementation manner, the correcting a material parameter of the layered pressure regulating coil through testing to obtain a corrected pressure coefficient of the layered pressure regulating coil includes:
applying preset pressure to a coil of the layer type voltage regulating coil to obtain the lead displacement of the coil;
obtaining a new Young modulus and a new Poisson's ratio according to the wire displacement and the compression limit load;
correcting the layered voltage regulating coil according to the new Young modulus and the new Poisson ratio to obtain a corrected layered voltage regulating coil;
applying pressure to the modified layered pressure regulating coil to obtain the maximum pressure which can be borne by the modified layered pressure regulating coil in unit area;
and obtaining the pressure coefficient of the corrected layer type pressure regulating coil according to the product of the maximum pressure and a preset margin coefficient.
In a possible implementation manner, the applying a preset pressure to the coil of the layered voltage regulating coil to obtain a lead displacement of the coil includes:
applying preset pressure to a coil of the layer type pressure regulating coil, and measuring for multiple times to obtain multiple lead displacement of the coil after the preset pressure is stable;
and when the deviation among the plurality of wire displacement amounts is smaller than a preset value, taking the average value of the plurality of wire displacement amounts as the final wire displacement amount.
In a possible implementation manner, the calculating, according to the pressure coefficient, an axial pressing force of the single-layer pressure regulating coil includes:
and calculating the product of the pressure coefficient and the end surface area of the coil to obtain the axial pressing force of the layer type pressure regulating coil during pressing.
In a second aspect, an embodiment of the present invention provides an axial pressing force calculation apparatus for a single-layer voltage regulating coil, including:
the construction module is used for setting a layer type pressure regulating coil mechanical simulation model by adopting physical field simulation software;
the testing module is used for acquiring the layer type pressure regulating coil consistent with the layer type pressure regulating coil mechanical simulation model, and correcting the material parameters of the layer type pressure regulating coil through testing to obtain the pressure coefficient of the corrected layer type pressure regulating coil;
and the calculation module is used for calculating the axial pressing force of the single-layer pressure regulating coil according to the pressure coefficient.
In a third aspect, an embodiment of the present invention provides a terminal, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the steps of the method according to the first aspect or any possible implementation manner of the first aspect when executing the computer program.
In a fourth aspect, the present invention provides a computer-readable storage medium, which stores a computer program, and when the computer program is executed by a processor, the computer program implements the steps of the method according to the first aspect or any one of the possible implementation manners of the first aspect.
The embodiment of the invention provides a method, a device and a terminal for calculating axial pressing force of a single-layer type voltage regulating coil, wherein a mechanical simulation model of the single-layer type voltage regulating coil is constructed by a construction module through physical field simulation software; acquiring a layer type pressure regulating coil consistent with the layer type pressure regulating coil mechanical simulation model, and correcting material parameters of the layer type pressure regulating coil through testing by a testing module to obtain a pressure coefficient of the corrected layer type pressure regulating coil; according to the pressure coefficient, the calculation module calculates and obtains the axial pressing force of the single-layer type pressure regulating coil, so that the accurate axial pressing force of the single-layer type pressure regulating coil can be obtained, and the problem that the axial pressing force of the single-layer type pressure regulating coil is not calculated in the prior art is solved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of a pancake voltage regulating coil provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a layered voltage regulating coil according to an embodiment of the present invention;
fig. 3 is a flowchart of an implementation of a method for calculating an axial pressing force of a single-layer voltage regulating coil according to an embodiment of the present invention;
FIG. 4(1) is a schematic diagram of a coil calculation model according to an embodiment of the present invention;
FIG. 4(2) is a schematic diagram of a simulation of unevenness of a coil wire according to an embodiment of the present invention;
fig. 4(3) is a schematic diagram of a stress simulation of a coil head-out position according to an embodiment of the present invention;
FIG. 5 is a graph of the amount of displacement of the wire versus the load provided by an embodiment of the present invention;
FIG. 6 is a schematic view of an axial pressing force calculation device of a single-layer pressure regulating coil provided by an embodiment of the invention;
fig. 7 is a schematic diagram of a terminal according to an embodiment of the present invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following description is made by way of specific embodiments with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a pancake voltage regulating coil, and fig. 2 is a schematic structural diagram of a layered voltage regulating coil. In figure 1, an oil duct cushion block is arranged between a lead and a lead of a cake-type pressure regulating coil, when the cake-type pressure regulating coil is axially pressed, pressed points are concentrated on a contact surface of the oil duct cushion block and a cake, the oil duct is in a suspended state and is not stressed, the radial height of the oil duct cushion block is higher than that of the cake by 4-5 mm, even if different cakes have a height deviation of 2-3 mm, the radial height of the lead cannot exceed the oil duct cushion block, therefore, the pressure applied to the uneven lead can be born by the cushion block, and the uneven lead cannot be extruded and deformed among different cakes. In addition, the coil outlet position is positioned between the oil duct cushion blocks, the coil outlet is not stressed in the axial compression process, the outlet position is deformed due to bending of leads and radial thickening of wrapping insulation, and the axial stability of the coil cannot be influenced even if the outlet position does not exceed the height of the oil duct cushion blocks.
In fig. 2, the leads of the layered pressure regulating coil are in direct contact, the leads are not separated by oil duct pads, all positions along the circumferential direction bear pressure together when the leads are pressed axially, if the leads have inconsistent flatness, local stress surfaces are reduced directly, and local pressure is too high and the leads are pressed unevenly, so that the leads can be damaged, short-circuited, axially unstable, radial leads bulge and the like. The difference of the structure of the layer type pressure regulating coil and the structure of the cake type pressure regulating coil causes different calculation modes when the axial pressing force is calculated. Therefore, the calculation of the axial pressing force of the cake-type pressure regulating coil in the prior art cannot be applied to the calculation of the axial pressing force of the layer-type pressure regulating coil.
Fig. 3 is a flowchart of an implementation of the method for calculating the axial pressing force of the single-layer voltage regulating coil according to the embodiment of the present invention, which is detailed as follows:
and 301, constructing a layer type pressure regulating coil mechanical simulation model by adopting physical field simulation software.
Optionally, in this step, a coil material, a coil variable, a compression surface, and all compression area meshes in the coil of the layered pressure regulating coil are set, and a mechanical simulation model of the layered pressure regulating coil is constructed based on physical field simulation software.
The coil material may include a young's modulus and a poisson's ratio of the coil. The coil variables may include the number of coil turns, wire size, wire irregularities, coil inside and outside diameter dimensions, coil support, etc.
Young's modulus is a physical quantity that characterizes the tensile or compressive strength of a material within its elastic limit, and is the modulus of elasticity in the machine direction. The magnitude of the Young's modulus indicates the rigidity of the material, and the larger the Young's modulus, the less likely it will deform.
Poisson's ratio is the absolute value of the ratio of the transverse strain to the corresponding longitudinal strain caused by a uniformly distributed longitudinal stress, within the limits of the proportions of the materials.
After this step, a coil calculation model is shown in fig. 4 (1). And calculating the pressure limit load of the coil model of the layer type pressure regulating coil mechanical simulation model according to the constructed layer type pressure regulating coil mechanical simulation model and the solid mechanical physical field equation.
Optionally, according to
Calculating the pressure limit load of a coil model of a layer type pressure regulating coil mechanical simulation model;
wherein, O represents the compression limit load of a coil model of the layered pressure regulating coil mechanics simulation model, S represents the stress tensor of the coil model,
the divergence of the stress tensor of the coil model is expressed, F represents an external force matrix corresponding to the external force applied to the coil model,
expressing a relation between stress and applied external force, C expressing a rigidity matrix corresponding to the rigidity of the coil material, epsilon expressing the elastic strain tensor of the coil material, mu expressing the displacement vector of the coil deformed by the extrusion of the external force,
the gradient of a displacement vector of the coil which is extruded and deformed by an external force is shown, T represents the rotation quantity of the matrix, E represents the Young modulus of the coil material, and v represents the Poisson ratio of the coil material.
And calculating the compression limit load O of the coil model through the equation. The unit area pressure intensity is calculated through external force, and the compression limit load is converted into the unit area pressure intensity of the coil. The pressure value and the wire stress value in unit area are survival parameters, namely pressure coefficients, of the set pressure of the final guidance product to be solved. We calculate this pressure coefficient by step 302.
Fig. 4(2) is a simulation diagram of the unevenness of the coil lead, and fig. 4(3) is a simulation diagram of the stress at the coil head-out position.
And 302, acquiring a layer type pressure regulating coil consistent with a layer type pressure regulating coil mechanical simulation model, and correcting a material parameter of the layer type pressure regulating coil through testing to obtain a pressure coefficient of the corrected layer type pressure regulating coil.
In the step, the layer type voltage regulating coil consistent with the layer type voltage regulating coil mechanical simulation model is wound, wherein parameters such as coil material, wire specification, inner and outer diameters of the coil, wire unevenness, lead expansion amount, coil supporting condition and the like are consistent with the simulation model. The wound layer type pressure regulating coil is placed in an oil press, and fixed standard pressure is set to measure the lead displacement.
Optionally, this step may include:
applying preset pressure to a coil of the layer type voltage regulating coil to obtain the lead displacement of the coil; the preset pressure is a fixed standard pressure, and may be set according to actual requirements, and in this embodiment, a specific pressure value of the standard pressure is not limited.
Obtaining a new Young modulus and a new Poisson ratio according to the wire displacement and the compression limit load;
correcting the layered voltage regulating coil according to the new Young modulus and the new Poisson ratio to obtain a corrected layered voltage regulating coil;
applying pressure to the corrected layered pressure regulating coil to obtain the maximum pressure born by the unit area of the corrected layered pressure regulating coil;
and obtaining the pressure coefficient of the corrected layer type pressure regulating coil according to the product of the maximum pressure and the preset margin coefficient.
In an embodiment, applying a predetermined pressure to the coil of the lamination voltage regulating coil to obtain the wire displacement of the coil may include:
applying preset pressure to a coil of the layer type pressure regulating coil, and measuring for multiple times to obtain multiple lead displacement of the coil after the preset pressure is stable;
and when the deviation between the plurality of wire displacement amounts is smaller than the preset value, taking the average value of the plurality of wire displacement amounts as the final wire displacement amount.
Optionally, the preset value may be set according to actual requirements, for example, the preset value may be 4%, 5%, and the like. The average value of the plurality of wire displacement amounts is used as the final wire displacement amount, so that more accurate wire displacement amount can be obtained.
As shown in fig. 5, the relationship between the wire displacement amount and the load is plotted on the X-axis, which is the wire displacement amount, and on the Y-axis, which is the load.
Optionally, obtaining a new young's modulus and a new poisson's ratio according to the wire displacement and the compression limit load may include:
and calculating a corresponding value error according to the new Young modulus and the new Poisson ratio as well as the originally set Young modulus and Poisson ratio, so that the production of a product (the layered pressure regulating coil) can be guided.
Optionally, the preset margin coefficient may be 0.7, and the maximum pressure is multiplied by 0.7 to obtain the pressure coefficient of the final product. It should be noted that the pressure coefficient of the product may be a range of values, for example, the pressure coefficient of the product may be PMaximum of0.7. + -. A, A denotes the parameter.
And 303, calculating to obtain the axial pressing force of the single-layer pressure regulating coil according to the pressure coefficient.
Optionally, in this step, a product of the pressure coefficient and the area of the end face of the coil is calculated to obtain an axial pressing force when the layered pressure regulating coil is pressed.
In actual production, the pressing force F of the oil press when pressing the coil can be calculated by the product of the standard pressure P given by unit area and the area S of the end face of the coil, wherein the standard pressure is a pressure coefficient.
The axial pressing force calculation method of the single-layer type voltage regulating coil adopts physical field simulation software to construct a mechanical simulation model of the single-layer type voltage regulating coil; acquiring a layer type pressure regulating coil consistent with a layer type pressure regulating coil mechanical simulation model, and correcting a material parameter of the layer type pressure regulating coil through testing to obtain a pressure coefficient of the corrected layer type pressure regulating coil; according to the pressure coefficient, the axial pressing force of the single-layer type pressure regulating coil is obtained through calculation, so that the accurate axial pressing force of the single-layer type pressure regulating coil can be obtained, and the problem that the axial pressing force of the single-layer type pressure regulating coil is not calculated in the prior art is solved.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
The following are embodiments of the apparatus of the invention, reference being made to the corresponding method embodiments described above for details which are not described in detail therein.
Fig. 6 shows a schematic structural diagram of an axial pressing force calculation device of a single-layer pressure regulating coil provided by an embodiment of the present invention, and for convenience of description, only parts related to the embodiment of the present invention are shown, and details are as follows:
as shown in fig. 6, the axial pressing force calculation device 6 of the single-layer pressure regulating coil includes: a building module 601, a testing module 602, and a computing module 603.
A building module 601, configured to set a layer-type voltage regulating coil mechanical simulation model by using physical field simulation software;
the testing module 602 is configured to obtain a layer-type voltage regulating coil consistent with a layer-type voltage regulating coil mechanical simulation model, and obtain a pressure coefficient of the corrected layer-type voltage regulating coil by testing and correcting a material parameter of the layer-type voltage regulating coil;
and the calculating module 603 is configured to calculate an axial pressing force of the single-layer pressure regulating coil according to the pressure coefficient.
In an embodiment, when the building module 601 uses physical field simulation software to build a layered pressure regulating coil mechanical simulation model, it may be configured to:
setting coil materials, coil variables, compression surfaces and all compression area grids in the coil of the layered pressure regulating coil, and constructing a layered pressure regulating coil mechanical simulation model based on physical field simulation software.
In an embodiment, after the building module 601 uses physical field simulation software to build the layered voltage regulating coil mechanical simulation model, the building module is further configured to:
and calculating the pressure limit load of a coil model of the layered pressure regulating coil mechanical simulation model according to a solid mechanical physical field equation.
In an embodiment, when the building module 601 calculates the compressive limit load of the coil model of the layered pressure regulating coil mechanical simulation model according to the solid mechanics physical field equation, it may be configured to:
according to
Calculating the pressure limit load of a coil model of a layer type pressure regulating coil mechanical simulation model;
wherein, O represents the compression limit load of a coil model of the layered pressure regulating coil mechanics simulation model, S represents the stress tensor of the coil model,
showing divergence of stress tensor of the coil model, F showing an external force matrix corresponding to an external force applied to the coil model, C showing a rigidity matrix corresponding to rigidity of the coil material, epsilon showing elastic strain tensor of the coil material, mu showing a displacement vector of the coil deformed by the external force,
the gradient of a displacement vector of the coil which is extruded and deformed by an external force is shown, T represents the rotation quantity of the matrix, E represents the Young modulus of the coil material, and v represents the Poisson ratio of the coil material.
In an embodiment, when the test module 602 obtains the pressure coefficient of the corrected layered pressure regulating coil by testing the material parameter of the corrected layered pressure regulating coil, it may be configured to:
applying preset pressure to a coil of the layer type voltage regulating coil to obtain the lead displacement of the coil;
obtaining a new Young modulus and a new Poisson ratio according to the wire displacement and the compression limit load;
correcting the layered voltage regulating coil according to the new Young modulus and the new Poisson ratio to obtain a corrected layered voltage regulating coil;
applying pressure to the corrected layered pressure regulating coil to obtain the maximum pressure born by the unit area of the corrected layered pressure regulating coil;
and obtaining the pressure coefficient of the corrected layer type pressure regulating coil according to the product of the maximum pressure and the preset margin coefficient.
In an embodiment, the testing module 602 applies a predetermined pressure to the coil of the lamination voltage regulating coil to obtain the wire displacement of the coil, and may be configured to:
applying preset pressure to a coil of the layer type pressure regulating coil, and measuring for multiple times to obtain multiple lead displacement of the coil after the preset pressure is stable;
and when the deviation between the plurality of wire displacement amounts is smaller than the preset value, taking the average value of the plurality of wire displacement amounts as the final wire displacement amount.
In a possible implementation manner, when the calculating module 603 calculates the axial pressing force of the single-layer pressure regulating coil according to the pressure coefficient, the calculating module may be configured to:
and calculating the product of the pressure coefficient and the area of the end face of the coil to obtain the axial pressing force of the layer type pressure regulating coil during pressing.
The axial pressing force calculation device of the single-layer pressure regulating coil adopts physical field simulation software to construct a mechanical simulation model of the single-layer pressure regulating coil through a construction module; acquiring a layer type pressure regulating coil consistent with the layer type pressure regulating coil mechanical simulation model, and correcting material parameters of the layer type pressure regulating coil through testing by a testing module to obtain a pressure coefficient of the corrected layer type pressure regulating coil; according to the pressure coefficient, the calculation module calculates and obtains the axial pressing force of the single-layer type pressure regulating coil, so that the accurate axial pressing force of the single-layer type pressure regulating coil can be obtained, and the problem that the axial pressing force of the single-layer type pressure regulating coil is not calculated in the prior art is solved.
Fig. 7 is a schematic diagram of a terminal according to an embodiment of the present invention. As shown in fig. 7, the terminal 7 of this embodiment includes: a processor 70, a memory 71 and a computer program 72 stored in said memory 71 and executable on said processor 70. The processor 70, when executing the computer program 72, implements the steps in the above-described embodiment of the method for calculating the axial pressing force of each single-layer pressure regulating coil, such as the steps 301 to 303 shown in fig. 3. Alternatively, the processor 70, when executing the computer program 72, implements the functions of each module/unit in the above-described device embodiments, for example, the functions of the modules/units 601 to 603 shown in fig. 6.
Illustratively, the computer program 72 may be partitioned into one or more modules/units that are stored in the memory 71 and executed by the processor 70 to implement the present invention. The one or more modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution of the computer program 72 in the terminal 7. For example, the computer program 72 may be divided into modules/units 601 to 603 shown in fig. 6.
The terminal 7 may be a desktop computer, a notebook, a palm computer, a cloud server, or other computing devices. The terminal 7 may include, but is not limited to, a processor 70, a memory 71. It will be appreciated by those skilled in the art that fig. 7 is only an example of a terminal 7 and does not constitute a limitation of the terminal 7, and that it may comprise more or less components than those shown, or some components may be combined, or different components, for example the terminal may further comprise input output devices, network access devices, buses, etc.
The Processor 70 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 71 may be an internal storage unit of the terminal 7, such as a hard disk or a memory of the terminal 7. The memory 71 may also be an external storage device of the terminal 7, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card) and the like provided on the terminal 7. Further, the memory 71 may also include both an internal storage unit and an external storage device of the terminal 7. The memory 71 is used for storing the computer program and other programs and data required by the terminal. The memory 71 may also be used to temporarily store data that has been output or is to be output.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus/terminal and method may be implemented in other ways. For example, the above-described apparatus/terminal embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow of the method according to the above embodiments may be implemented by a computer program, which may be stored in a computer readable storage medium, and when the computer program is executed by a processor, the steps of the method for calculating the axial pressing force of each single-layer voltage regulating coil may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain other components which may be suitably increased or decreased as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media which may not include electrical carrier signals and telecommunications signals in accordance with legislation and patent practice.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (9)
1. An axial pressing force calculation method of a single-layer pressure regulating coil is characterized by comprising the following steps:
adopting physical field simulation software to construct a layer type pressure regulating coil mechanical simulation model;
acquiring a layer type pressure regulating coil consistent with the layer type pressure regulating coil mechanical simulation model, and correcting material parameters of the layer type pressure regulating coil through testing to obtain a pressure coefficient of the corrected layer type pressure regulating coil; the method comprises the following steps: applying preset pressure to a coil of the layer type voltage regulating coil to obtain the lead displacement of the coil; obtaining a new Young modulus and a new Poisson's ratio according to the wire displacement and the compression limit load; correcting the layered voltage regulating coil according to the new Young modulus and the new Poisson ratio to obtain a corrected layered voltage regulating coil; applying pressure to the modified layered pressure regulating coil to obtain the maximum pressure which can be borne by the modified layered pressure regulating coil in unit area; obtaining the pressure coefficient of the corrected layer type pressure regulating coil according to the product of the maximum pressure and a preset margin coefficient;
and calculating to obtain the axial pressing force of the single-layer pressure regulating coil according to the pressure coefficient.
2. The method of claim 1, wherein the building of the layered pressure regulating coil mechanical simulation model by using physical field simulation software comprises:
setting coil materials, coil variables, compression surfaces and all compression area grids in the coil of the layered pressure regulating coil, and constructing a layered pressure regulating coil mechanical simulation model based on physical field simulation software.
3. The method according to claim 1 or 2, after the building of the layered voltage regulating coil mechanical simulation model by using the physical field simulation software, further comprising:
and calculating the pressure limit load of a coil model of the layer type pressure regulating coil mechanical simulation model according to a solid mechanical physical field equation.
4. The method of claim 3, wherein calculating the compressive limit load of the coil model of the layered pressure regulating coil mechanical simulation model according to the solid mechanics physical field equation comprises:
according to
Calculating the pressure limit load of a coil model of the layer type pressure regulating coil mechanical simulation model;
wherein, O represents the mechanical simulation model of the layer type voltage regulating coilThe compressive ultimate load of the coil model of type, S represents the stress tensor of the coil model,
showing divergence of stress tensor of the coil model, F showing an external force matrix corresponding to an external force applied to the coil model, C showing a rigidity matrix corresponding to rigidity of the coil material, epsilon showing elastic strain tensor of the coil material, mu showing a displacement vector of the coil deformed by the external force,
the gradient of a displacement vector of the coil which is extruded and deformed by an external force is shown, T represents the rotation quantity of the matrix, E represents the Young modulus of the coil material, and v represents the Poisson ratio of the coil material.
5. The method of claim 3, wherein said applying a predetermined pressure to the coil of said layered voltage regulating coil to obtain a wire displacement of said coil comprises:
applying preset pressure to a coil of the layer type pressure regulating coil, and measuring for multiple times to obtain multiple lead displacement of the coil after the preset pressure is stable;
and when the deviation among the plurality of wire displacement amounts is smaller than a preset value, taking the average value of the plurality of wire displacement amounts as the final wire displacement amount.
6. The method according to claim 3, wherein the calculating an axial pressing force of the single-layer pressure regulating coil according to the pressure coefficient comprises:
and calculating the product of the pressure coefficient and the end surface area of the coil to obtain the axial pressing force of the layer type pressure regulating coil during pressing.
7. An axial packing force calculation device of individual layer formula pressure regulating coil, its characterized in that includes:
the construction module is used for setting a layer type pressure regulating coil mechanical simulation model by adopting physical field simulation software;
the testing module is used for acquiring the layer type pressure regulating coil consistent with the layer type pressure regulating coil mechanical simulation model, and correcting the material parameters of the layer type pressure regulating coil through testing to obtain the pressure coefficient of the corrected layer type pressure regulating coil; the testing module is used for applying preset pressure to the coil of the layer type voltage regulating coil to obtain the lead displacement of the coil; obtaining a new Young modulus and a new Poisson's ratio according to the wire displacement and the compression limit load; correcting the layered voltage regulating coil according to the new Young modulus and the new Poisson ratio to obtain a corrected layered voltage regulating coil; applying pressure to the modified layered pressure regulating coil to obtain the maximum pressure which can be borne by the modified layered pressure regulating coil in unit area; obtaining the pressure coefficient of the corrected layer type pressure regulating coil according to the product of the maximum pressure and a preset margin coefficient;
and the calculation module is used for calculating the axial pressing force of the single-layer pressure regulating coil according to the pressure coefficient.
8. A terminal comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the steps of the method according to any of the preceding claims 1 to 6 when executing the computer program.
9. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 6.
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| JP2013129362A (en) * | 2011-12-22 | 2013-07-04 | Hitachi Automotive Systems Ltd | Brake control device |
| CN103117170B (en) * | 2013-02-01 | 2015-04-22 | 中国科学院电工研究所 | Axial forcing device and adjustment method for winding displacement of superconducting coil |
| CN106768509A (en) * | 2016-11-22 | 2017-05-31 | 云南电网有限责任公司电力科学研究院 | A kind of adjustable testing transformer of winding stress |
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