CN117216910A

CN117216910A - Centrifugal impeller wheel disc model construction method and device and electronic equipment

Info

Publication number: CN117216910A
Application number: CN202311465426.XA
Authority: CN
Inventors: 魏征; 刘驰; 李强; 卫亚明; 乔路路; 郝帅
Original assignee: Shaanxi Aerospace Information Technology Co ltd
Current assignee: Shaanxi Aerospace Information Technology Co ltd
Priority date: 2023-11-07
Filing date: 2023-11-07
Publication date: 2023-12-12
Anticipated expiration: 2043-11-07
Also published as: CN117216910B

Abstract

The disclosure provides a centrifugal impeller wheel disc model construction method and device and electronic equipment, and relates to the technical field of computers. The method for constructing the centrifugal impeller wheel disc model comprises the following steps: loading a pre-constructed centrifugal impeller blade model, and determining the coordinates of the end points of the blades projected on a meridian plane by the centrifugal impeller blade model; determining the endpoint coordinates of the wheel disc model projected on the meridian plane by the centrifugal impeller wheel disc model according to the input parameterized data of the wheel disc model and the endpoint coordinates of the blade; constructing a meridian plane molded line of the wheel disc based on the endpoint coordinates of the wheel disc model; and generating a centrifugal impeller wheel disc model matched with the centrifugal impeller blade model through the wheel disc meridian surface molded line. According to the technical scheme, the construction efficiency of the wheel disc model can be effectively improved, the construction flow is shortened, and when the design of the wheel disc model changes, parameterized data can be directly adjusted, so that the repeated workload is effectively reduced.

Description

Centrifugal impeller wheel disc model construction method and device and electronic equipment

Technical Field

The disclosure relates to the technical field of computers, in particular to a centrifugal impeller wheel disc model building method, a centrifugal impeller wheel disc model building device and electronic equipment.

Background

Centrifugal impellers are an important component in fluid machines, whose performance directly affects the efficiency and stability of the fluid machine. The centrifugal impeller wheel disk is an important component of the centrifugal impeller, and the design and manufacture of the centrifugal impeller wheel disk have important influence on the performance of the whole centrifugal impeller.

However, in the traditional modeling scheme of the centrifugal impeller wheel disc, a large number of dimensional parameters are needed to be referenced when the centrifugal impeller wheel disc body is constructed by manually drawing in design tool software, the constraint is more, modeling is time-consuming and labor-consuming, the modeling flow of the centrifugal impeller wheel disc model is tedious and lengthy, the construction efficiency is lower, and when one parameter needs to be adjusted, a large number of related parameters need to be adjusted correspondingly manually, so that the flexibility is lower.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

Disclosure of Invention

The embodiment of the disclosure aims to provide a centrifugal impeller wheel disc model building method, a centrifugal impeller wheel disc model building device, electronic equipment and a computer readable storage medium, so that the building flow of the centrifugal impeller wheel disc model can be effectively shortened, the building efficiency of the centrifugal impeller wheel disc model is improved, and the building flexibility of the centrifugal impeller wheel disc model is improved.

Other features and advantages of the present disclosure will be apparent from the following detailed description, or may be learned in part by the practice of the disclosure.

According to a first aspect of an embodiment of the present disclosure, there is provided a method for constructing a centrifugal impeller wheel disc model, including:

loading a pre-constructed centrifugal impeller blade model, and determining the coordinates of the end points of the blades projected on a meridian plane by the centrifugal impeller blade model;

acquiring input wheel disc model parameterized data, and determining wheel disc model endpoint coordinates of the centrifugal impeller wheel disc model projected on a meridian plane according to the wheel disc model parameterized data and the blade endpoint coordinates;

constructing a meridian plane molded line of the wheel disc based on the endpoint coordinates of the wheel disc model;

and generating a centrifugal impeller wheel disc model matched with the centrifugal impeller blade model through the wheel disc meridian plane molded line.

In some example embodiments of the present disclosure, based on the foregoing aspects, the blade endpoint coordinates include blade inlet endpoint coordinates, the disk model endpoint coordinates include first disk inlet endpoint coordinates, and the disk model parametric data includes hub fillet dimensions; the determining the endpoint coordinates of the wheel disc model projected on the meridian plane of the centrifugal impeller wheel disc model according to the parameterized data of the wheel disc model and the endpoint coordinates of the blades comprises the following steps: determining a first size parameter according to a preset multiple and the hub fillet size; determining a first axial coordinate through an axial coordinate corresponding to the blade inlet endpoint coordinate and the first dimension parameter; and determining a first radial coordinate corresponding to the first axial coordinate on a flow passage projection line corresponding to the centrifugal impeller blade model, and determining the endpoint coordinate of the inlet of the first wheel disc according to the first radial coordinate and the first axial coordinate.

In some example embodiments of the present disclosure, based on the foregoing, the wheel model endpoint coordinates include second wheel inlet endpoint coordinates adjacent to the first wheel inlet endpoint coordinates, the wheel model parametric data including first scale parameters; the determining the endpoint coordinates of the wheel disc model projected on the meridian plane of the centrifugal impeller wheel disc model according to the parameterized data of the wheel disc model and the endpoint coordinates of the blades comprises the following steps: determining a second radial coordinate according to the radial coordinate corresponding to the blade inlet endpoint coordinate and the first proportional parameter; determining a second axial coordinate according to the first axial coordinate; and determining the second wheel disc inlet endpoint coordinates based on the second radial coordinates and the second axial coordinates.

In some example embodiments of the disclosure, based on the foregoing aspects, the blade endpoint coordinates include first blade outlet endpoint coordinates and second blade outlet endpoint coordinates, the disk model endpoint coordinates include first disk outlet endpoint coordinates, and the disk model parametric data includes second scale parameters and third scale parameters; the determining the endpoint coordinates of the wheel disc model projected on the meridian plane of the centrifugal impeller wheel disc model according to the parameterized data of the wheel disc model and the endpoint coordinates of the blades comprises the following steps: determining the width of the blade outlet according to the axial coordinate corresponding to the first blade outlet endpoint coordinate and the axial coordinate corresponding to the second blade outlet endpoint coordinate; determining the thickness of the back surface of the first wheel disc through the width of the blade outlet and the second proportion parameter; determining a second wheel disc back thickness based on the first wheel disc back thickness and a third proportional parameter; determining a third axial coordinate according to an axial coordinate corresponding to the first blade outlet endpoint coordinate and the thickness of the back surface of the second wheel disc; and determining a third radial coordinate through the second radial coordinate, and determining the outlet endpoint coordinate of the first wheel disc according to the third axial coordinate and the third radial coordinate.

In some example embodiments of the present disclosure, based on the foregoing, the wheel model endpoint coordinates comprise second wheel outlet endpoint coordinates and the wheel model parametric data comprises wheel back support radius; the determining the endpoint coordinates of the wheel disc model projected on the meridian plane of the centrifugal impeller wheel disc model according to the parameterized data of the wheel disc model and the endpoint coordinates of the blades comprises the following steps: determining a fourth axial coordinate according to the axial coordinate corresponding to the first blade outlet endpoint coordinate and the thickness of the back surface of the second wheel disc; determining a fourth radial coordinate through the radial coordinate of the first blade outlet endpoint coordinate and the wheel disc back support radius; and determining the second wheel disc outlet endpoint coordinate based on the fourth axial coordinate and the fourth radial coordinate.

In some example embodiments of the present disclosure, based on the foregoing aspects, the disk model endpoint coordinates include third disk outlet endpoint coordinates, the determining, from the disk model parametric data and the blade endpoint coordinates, disk model endpoint coordinates of the centrifugal impeller disk model projection on a meridian plane, comprising: determining a fifth radial coordinate according to the radial coordinate of the first blade outlet endpoint coordinate; determining a fifth axial coordinate based on the axial coordinate of the first blade outlet endpoint coordinate and the thickness of the back surface of the first wheel disc; and determining the outlet endpoint coordinates of the third wheel disc through the fifth radial coordinates and the fifth axial coordinates.

In some example embodiments of the present disclosure, based on the foregoing solution, the generating, by the disc meridian plane profile, a centrifugal impeller disc model to which the centrifugal impeller blade model is matched includes: determining the width of a unit wheel disc according to the input number of blades; constructing a unit wheel disc model through the wheel disc meridian plane formed by the wheel disc meridian plane molded lines and the unit wheel disc width; and obtaining the centrifugal impeller wheel disc model matched with the centrifugal impeller blade model by carrying out rotary replication modeling on the unit wheel disc model.

In some example embodiments of the present disclosure, based on the foregoing solution, the constructing a wheel meridian plane profile based on the wheel model endpoint coordinates includes: visually displaying the endpoint coordinates of the wheel disc model; responding to the adjustment operation of the endpoint coordinates of the wheel disc model to obtain new endpoint coordinates of the wheel disc model; and constructing a meridian plane molded line of the wheel disc according to the endpoint coordinates of the new wheel disc model.

According to a second aspect of the embodiments of the present disclosure, there is provided a centrifugal impeller wheel disc model building apparatus, including:

the blade endpoint coordinate acquisition module is used for loading a pre-constructed centrifugal impeller blade model and determining the blade endpoint coordinate of the centrifugal impeller blade model projected on a meridian plane;

The wheel disc model endpoint coordinate determining module is used for acquiring input wheel disc model parameterization data and determining wheel disc model endpoint coordinates of the centrifugal impeller wheel disc model projected on a meridian plane according to the wheel disc model parameterization data and the blade endpoint coordinates;

the wheel disc meridian profile construction module is used for constructing a wheel disc meridian profile based on the endpoint coordinates of the wheel disc model;

and the centrifugal impeller wheel disc model generation module is used for generating a centrifugal impeller wheel disc model matched with the centrifugal impeller blade model through the wheel disc meridian plane molded line.

According to a third aspect of embodiments of the present disclosure, there is provided an electronic device, comprising: a processor; and a memory having stored thereon computer readable instructions that when executed by the processor implement the centrifugal impeller wheel disc model construction method of the first aspect.

According to a fourth aspect of embodiments of the present disclosure, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the centrifugal impeller wheel disc model construction method in the first aspect.

The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:

According to the method for constructing the centrifugal impeller wheel disc model in the example embodiment of the disclosure, the coordinates of the end points of the blades projected on the meridian plane by the pre-constructed centrifugal impeller blade model can be determined, then the coordinates of the end points of the wheel disc model projected on the meridian plane by the centrifugal impeller wheel disc model can be determined according to the input parameterized data of the wheel disc model and the coordinates of the end points of the blades, further a wheel disc meridian plane molded line can be constructed based on the coordinates of the end points of the wheel disc model, and the centrifugal impeller wheel disc model matched with the centrifugal impeller blade model is generated through the wheel disc meridian plane molded line. On the one hand, the centrifugal impeller wheel disc model matched with the centrifugal impeller blade model can be automatically generated according to the blade end point coordinates of the pre-constructed centrifugal impeller blade model and the input wheel disc model parameterized data, so that the manual participation proportion in the construction process of the centrifugal impeller wheel disc model is effectively reduced, the workload is reduced, the construction flow of the centrifugal impeller wheel disc model is effectively shortened, and the construction efficiency of the centrifugal impeller wheel disc model is improved; on the other hand, when a certain parameter of the centrifugal impeller wheel disc model needs to be adjusted, the parameterized data of the wheel disc model or the generated endpoint coordinates of the wheel disc model can be directly adjusted, and the redetermined endpoint coordinates of the wheel disc model can be directly obtained, so that the adjusted centrifugal impeller wheel disc model is obtained.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.

Fig. 1 shows a schematic diagram of a system architecture of an exemplary application environment to which a disk model generation method and apparatus of an embodiment of the present disclosure may be applied.

Fig. 2 schematically illustrates a flow diagram of a centrifugal impeller disk model building method according to some embodiments of the present disclosure.

Fig. 3 schematically illustrates a schematic view of a wheel disc meridian plane profile endpoint in accordance with some embodiments of the present disclosure.

Fig. 4 schematically illustrates a schematic diagram of a centrifugal impeller disk model constructed in accordance with some embodiments of the present disclosure.

Fig. 5 schematically illustrates a schematic diagram of a centrifugal impeller disk model building apparatus according to some embodiments of the present disclosure.

Fig. 6 schematically illustrates a structural schematic diagram of a computer system of an electronic device according to some embodiments of the present disclosure.

Fig. 7 schematically illustrates a schematic diagram of a computer-readable storage medium according to some embodiments of the present disclosure.

In the drawings, the same or corresponding reference numerals indicate the same or corresponding parts.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present specification. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present description as detailed in the accompanying claims.

The terminology used in the description presented herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the description. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used in this specification to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, the first information may also be referred to as second information, and similarly, the second information may also be referred to as first information, without departing from the scope of the present description. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "responsive to a determination", depending on the context.

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the disclosed aspects may be practiced without one or more of the specific details, or with other methods, components, devices, steps, etc. In other instances, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the disclosure.

Moreover, the drawings are only schematic illustrations and are not necessarily drawn to scale. The block diagrams depicted in the figures are merely functional entities and do not necessarily correspond to physically separate entities. That is, the functional entities may be implemented in software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.

Impeller machines are typically composed of an impeller, blades, and a disk. The impeller is the rotating part of the impeller machine, and the wheel disc is an annular structure fixed to the impeller. During rotation of the impeller, liquid or gas passes through the blades and is subjected to the force of the blades to change momentum. The blades transform the momentum of the liquid or gas into a force and move along their curved surfaces, eventually converging onto a disk. Therefore, the blades of the impeller and the wheel disc are closely related, and the blades of the impeller are matched with the wheel disc in a specified mode so as to ensure that the flow direction and the rotation direction of fluid are consistent, and ensure that the impeller machinery can work normally. Simultaneously, the rim plate has also played important supporting role to the rotation and the stability of impeller, and the terminal surface of blade can place on the rim plate generally.

FIG. 1 illustrates a schematic diagram of a system architecture of an exemplary application environment in which a centrifugal impeller disk model building method and apparatus of embodiments of the present disclosure may be applied.

As shown in fig. 1, the system architecture 100 may include one or more of a desktop computer 101, a portable computer 102, a smart phone 103, and other terminal devices, a network 104, and a server 105. The network 104 is the medium used to provide communication links between the terminal devices and the server 105. The network 104 may include various connection types, such as wired, wireless communication links, or fiber optic cables, among others. The terminal device may be any of a variety of electronic devices having data processing capabilities with a display screen for presenting to a user the wheel model endpoint coordinates, wheel meridian plane profile, or centrifugal impeller wheel model, including but not limited to desktop computers, portable computers, smart phones, and the like as described above. It should be understood that the number of terminal devices, networks and servers in fig. 1 is merely illustrative. There may be any number of terminal devices, networks, and servers, as desired for implementation. For example, the server 105 may be a server cluster formed by a plurality of servers.

The method for constructing the centrifugal impeller wheel disc model provided by the embodiment of the disclosure can be generally executed by terminal equipment, and correspondingly, the device for constructing the centrifugal impeller wheel disc model is generally arranged in the terminal equipment. However, it will be readily understood by those skilled in the art that the method for constructing a centrifugal impeller disc model provided in the embodiments of the present disclosure may also be performed by the server 105, and accordingly, the apparatus for constructing a centrifugal impeller disc model may also be disposed in the server 105, which is not particularly limited in the present exemplary embodiment.

Further, it should be understood that the centrifugal impeller disk model building method of embodiments of the present disclosure may be configured as a software module. In some implementations, the centrifugal impeller wheel disc model build schemes of the present disclosure may be deployed separately to enable build generation of different types of centrifugal impeller wheel disc models. In other implementation scenarios, the centrifugal impeller wheel disc model construction scheme of the present disclosure may be deployed in other software, as a functional module of the software, for example, in analysis software of an impeller machine, and the application mode of the centrifugal impeller wheel disc model construction method is not particularly limited.

In the present exemplary embodiment, a method for constructing a centrifugal impeller wheel disc model is provided first, and a method for constructing a centrifugal impeller wheel disc model in the embodiment of the present disclosure will be described in detail below by taking a terminal device to execute the method as an example. Fig. 2 schematically illustrates a flow diagram of a centrifugal impeller disk model building method according to some embodiments of the present disclosure. Referring to fig. 2, the method for constructing a centrifugal impeller wheel disc model may include the steps of:

step S210, loading a pre-constructed centrifugal impeller blade model, and determining the endpoint coordinates of the blade projected on a meridian plane by the centrifugal impeller blade model;

step S220, acquiring input wheel disc model parameterized data, and determining wheel disc model endpoint coordinates of the centrifugal impeller wheel disc model projected on a meridian plane according to the wheel disc model parameterized data and the blade endpoint coordinates;

step S230, constructing a meridian plane molded line of the wheel disc based on the endpoint coordinates of the wheel disc model;

and step S240, generating a centrifugal impeller wheel disc model matched with the centrifugal impeller blade model through the wheel disc meridian plane molded line.

According to the method for constructing the centrifugal impeller wheel disc model in the embodiment, on one hand, according to the blade end point coordinates of the pre-constructed centrifugal impeller blade model and the input wheel disc model parameterized data, the centrifugal impeller wheel disc model matched with the centrifugal impeller blade model can be automatically generated, the manual participation proportion in the construction process of the centrifugal impeller wheel disc model is effectively reduced, the workload is reduced, the construction flow of the centrifugal impeller wheel disc model is effectively shortened, and the construction efficiency of the centrifugal impeller wheel disc model is improved; on the other hand, when a certain parameter of the centrifugal impeller wheel disc model needs to be adjusted, the parameterized data of the wheel disc model or the generated endpoint coordinates of the wheel disc model can be directly adjusted, and the redetermined endpoint coordinates of the wheel disc model can be directly obtained, so that the adjusted centrifugal impeller wheel disc model is obtained.

Next, a centrifugal impeller wheel disc model construction method in the present exemplary embodiment will be further described.

In step S210, a pre-built centrifugal impeller blade model is loaded, and the coordinates of the end points of the blades projected on the meridian plane by the centrifugal impeller blade model are determined.

In an example embodiment of the present disclosure, the pre-constructed centrifugal impeller blade model refers to a blade model of a centrifugal impeller that is modeled in advance by design software, and the blade model has a simpler structure compared with a disk model, so that the blade model can be directly constructed manually.

The blade end point coordinates refer to end point coordinates corresponding to the centrifugal impeller blade model obtained by converting the centrifugal impeller blade model into a meridian coordinate system (ZR coordinate system), for example, the blade end point coordinates may be end point coordinates of the inlet end of the centrifugal impeller blade model projected on the meridian plane, or end point coordinates of the outlet end of the centrifugal impeller blade model projected on the meridian plane, which is not particularly limited in this exemplary embodiment.

In step S220, input disk model parametric data is obtained, and a disk model endpoint coordinate of the centrifugal impeller disk model projected on a meridian plane is determined according to the disk model parametric data and the blade endpoint coordinate.

In an exemplary embodiment of the present disclosure, the disk model parametric data refers to design parameters input by a user for controlling a construction process of a centrifugal impeller disk model, for example, the disk model parametric data may be parameters describing a proportional relationship between a centrifugal impeller blade model and a centrifugal impeller disk model, or parameters describing a centrifugal impeller, such as a hub fillet size, a hub radius, or the like, and of course, the disk model parametric data may be other types of design parameters for controlling a construction process of a centrifugal impeller disk model, which is not particularly limited in this exemplary embodiment.

In step S230, a wheel meridian plane profile is constructed based on the wheel model endpoint coordinates.

In an example embodiment of the present disclosure, the disk meridian profile refers to a closed frame describing the contour features of the centrifugal impeller disk in a meridian coordinate system, and the surface surrounded by the disk meridian profile is the projection surface of the centrifugal impeller disk model on the meridian surface.

After the end point coordinates of the wheel disc model are obtained, the end point coordinates of the wheel disc model can be sequentially connected, and then the wheel disc meridian surface molded line corresponding to the centrifugal impeller wheel disc model can be obtained.

In step S240, a centrifugal impeller disk model matched with the centrifugal impeller blade model is generated by the disk meridian plane profile.

In an example embodiment of the present disclosure, after obtaining the wheel disc meridian plane profile, a 360 ° rotational stretching operation may be performed around the axis based on the plane surrounded by the wheel disc meridian plane profile, and then a centrifugal impeller wheel disc model matched with the centrifugal impeller blade model may be obtained.

Through inputting the blade endpoint coordinates of the pre-constructed centrifugal impeller blade model and the input wheel disc model parameterized data, the centrifugal impeller wheel disc model matched with the centrifugal impeller blade model is automatically generated, the manual participation proportion in the construction process of the centrifugal impeller wheel disc model is effectively reduced, the workload is reduced, the construction flow of the centrifugal impeller wheel disc model is effectively shortened, and the construction efficiency of the centrifugal impeller wheel disc model is improved.

Next, step S210 to step S240 will be described in detail.

In an example embodiment of the present disclosure, the blade endpoint coordinates may include blade inlet endpoint coordinates, where the blade inlet end refers to a blade side corresponding to the direction of the intake air flow, and the blade inlet endpoint coordinates refer to meridian coordinates corresponding to the endpoint at the blade inlet end; the wheel disc model endpoint coordinates may include a first wheel disc inlet endpoint coordinate, where the first wheel disc inlet endpoint coordinate refers to a meridian coordinate of an upper endpoint of the centrifugal impeller wheel disc on the same side as the inlet end of the blade; the wheel disc model parametric data may include hub fillet sizes.

Specifically, the method can determine the endpoint coordinates of the wheel disc model of the centrifugal impeller projected on the meridian plane according to the parameterized data of the wheel disc model and the endpoint coordinates of the blade by the following steps:

the first size parameter can be determined according to the preset multiple and the hub fillet size, the first axial coordinate is determined through the axial coordinate corresponding to the blade inlet endpoint coordinate and the first size parameter, the first radial coordinate corresponding to the first axial coordinate is determined on the flow passage projection line corresponding to the centrifugal impeller blade model, and the first wheel disc inlet endpoint coordinate is determined according to the first radial coordinate and the first axial coordinate.

The preset multiple is a preset control parameter for adjusting the distance between the inlet end point of the blade and the inlet end point of the first wheel disc model, for example, the preset multiple can be 4 times, and the stability of the wheel disc of the centrifugal impeller can be effectively improved and the performance of the centrifugal impeller can be ensured by setting the distance between the inlet end point of the blade and the inlet end point of the first wheel disc model to be 4 times; of course, the setting of the preset multiple may be set according to the characteristics of the centrifugal impeller, which is not particularly limited in the present exemplary embodiment.

The first dimension parameter is a distance between a blade inlet endpoint and a first wheel disc model inlet endpoint determined based on a preset multiple and a radial coordinate corresponding to the blade inlet endpoint coordinate, and the radial coordinate corresponding to the centrifugal impeller wheel disc model, namely the first radial coordinate, can be obtained rapidly through the first dimension parameter because the blade inlet endpoint coordinate is known.

After the centrifugal impeller blade model is built, a user can set flow channel data, and then a flow channel corresponding to the centrifugal impeller blade model is also known, at the moment, a projection line of the flow channel corresponding to the centrifugal impeller blade model can be found out corresponding axial coordinates, namely first axial coordinates, on the projection line of the flow channel according to the first radial coordinates, and further, a first wheel disc inlet endpoint coordinate can be built according to the first radial coordinates and the first axial coordinates.

In this embodiment, the wheel model endpoint coordinates may include second wheel inlet endpoint coordinates adjacent to the first wheel inlet endpoint coordinates, the wheel model parameterized data may include first scale parameters, where the first scale parameters are control parameters for adjusting a distance between the second wheel inlet endpoint coordinates and the axis, for example, the first scale parameters may be 0.25, and performance of the wheel may be effectively improved by setting the first scale parameters; of course, the first ratio parameter may be set by user according to the type of the impeller, for example, the first ratio parameter may also be 0.2 or 0.3, which is not limited to this example embodiment.

Further, the second radial coordinate may be determined according to the radial coordinate corresponding to the blade inlet endpoint coordinate and the first ratio parameter; because the second wheel disc entry endpoint coordinate is adjacent to the first wheel disc entry endpoint coordinate and belongs to the same plane, the axial coordinates are equal, the second axial coordinate can be determined according to the first axial coordinate, and the second wheel disc entry endpoint coordinate can be determined based on the second radial coordinate and the second axial coordinate.

In this embodiment, the blade end point coordinates may include a first blade outlet end point coordinate and a second blade outlet end point coordinate, and the blade outlet end is a blade side corresponding to the indicated port flow direction. The wheel disc model endpoint coordinates may include first wheel disc outlet endpoint coordinates, the wheel disc model parametric data includes a second scale parameter and a third scale parameter, the second scale parameter is a control parameter for adjusting a ratio between a first wheel disc back surface thickness and a blade outlet height, for example, the second scale parameter may be 0.25, the third scale parameter is a control parameter for adjusting a ratio between a second wheel disc back surface thickness and the first wheel disc back surface thickness, for example, the third scale parameter may be 1.5, and of course, the second scale parameter and the third scale parameter may be custom set according to a type of centrifugal impeller, which is not particularly limited in this example embodiment.

The blade outlet width may be determined according to an axial coordinate corresponding to the first blade outlet endpoint coordinate and an axial coordinate corresponding to the second blade outlet endpoint coordinate, the first disk back face thickness may be determined by the blade outlet width and the second ratio parameter, the second disk back face thickness may be determined based on the first disk back face thickness and the third ratio parameter, the third axial coordinate may be determined according to the axial coordinate corresponding to the first blade outlet endpoint coordinate and the second disk back face thickness, the third radial coordinate may be determined by the second radial coordinate, and the first disk outlet endpoint coordinate may be determined according to the third axial coordinate and the third radial coordinate.

In this embodiment, the wheel model endpoint coordinates may include second wheel outlet endpoint coordinates and the wheel model parametric data may include wheel back support radius.

The fourth axial coordinate can be determined according to the axial coordinate corresponding to the first blade outlet endpoint coordinate and the thickness of the back surface of the second wheel disc, and the fourth radial coordinate can be determined through the radial coordinate of the first blade outlet endpoint coordinate and the support radius of the back surface of the wheel disc, so that the second wheel disc outlet endpoint coordinate can be determined based on the fourth axial coordinate and the fourth radial coordinate.

In this embodiment, the wheel disc model endpoint coordinates may include a third wheel disc outlet endpoint coordinate, a fifth radial coordinate may be determined according to the radial coordinate of the first blade outlet endpoint coordinate, a fifth axial coordinate may be determined based on the axial coordinate of the first blade outlet endpoint coordinate and the thickness of the back surface of the first wheel disc, and the third wheel disc outlet endpoint coordinate may be determined by the fifth radial coordinate and the fifth axial coordinate.

Referring to FIG. 3, on the premise of the known blade size and flow channel data of the centrifugal impeller blade model, the coordinates of the 1 point of the inlet end of the blade projected on the meridian plane of the centrifugal impeller blade model can be obtained as (R _inlet1 ，Z _inlet1 ) The coordinates of the inlet end 2 point of the blade are (R _inlet2 ，Z _inlet2 ) The coordinates of the point 1 at the outlet end of the blade are (R _exit1 ，Z _exit1 ) The coordinates of the point 2 at the exit end of the blade are (R _exit2 ，Z _exit2 ）。

The hub fillet size can be obtained according to the input wheel disc model parameterized data, and then the first size parameter can be calculated according to the relation (1):

B= 4×R _fillet （1）

wherein B can represent a first size parameter, the value of the preset multiple is 4, R _fillet The hub fillet size may be expressed. And can then pass through the blade inlet endpoint coordinates (R _inlet1 ，Z _inlet1 ) Corresponding axial coordinate Z _inlet1 First dimensional parameter determining first axial coordinate Z _NS = Z _inlet1 -B; knowing the flow channel data, finding a first axial coordinate Z on a flow channel projection line _NS Corresponding first radial coordinate, namely, A value, so that the first wheel disc inlet endpoint coordinate NS (A, Z) _inlet1 -B）。

After the first wheel disc inlet end point coordinate NS is obtained, the second wheel disc inlet end point coordinate NN is identical to the axial coordinate value of the first wheel disc inlet end point coordinate NS, that is, the second axial coordinate of the second wheel disc inlet end point coordinate NN is (Z _inlet1 -B) the second radial coordinates can be calculated according to relation (2):

C= R _inlet1 ×0.25（2）

wherein C can represent a second radial coordinate, the value of the first ratio parameter is 0.25, R _inlet1 Can represent the radial coordinate corresponding to the inlet endpoint coordinate of the blade, and further can obtain the inlet endpoint coordinate NN (C, Z) _inlet1 -B）。

Since the line of C, D is parallel to the axis, the D value is equal to the C value, which is the third radial coordinate of the first disc outlet end point coordinate BS, i.e., d=r _inlet1 X 0.25; the blade outlet width can be calculated by relation (3):

EH = Z _exit1 - Z _exit2 （3）

wherein EH may represent the blade outlet width, Z _exit1 Can represent the axial coordinate corresponding to the coordinate of the outlet end point of the first blade, Z _exit2 The axial coordinates corresponding to the second blade outlet endpoint coordinates may be represented.

After the resulting blade outlet width EH, the first disk back face thickness may be calculated according to relation (4), and the second disk back face thickness may be calculated according to relation (5):

T = 0.25×EH（4）

SP =1.5×T（5）

wherein, T can represent the thickness of the back surface of the first wheel disc, the second ratio parameter can take the value of 0.25, EH can represent the width of the blade outlet, SP can represent the thickness of the back surface of the second wheel disc, and the endpoint coordinate of the blade can take the value of 1.5.

The third axial coordinate corresponding to the first wheel disc outlet endpoint coordinate BS may be calculated according to relation (6):

Z _BS =Z _exit1 +SP（6）

wherein Z is _BS Can represent the third axial coordinate, Z _exit1 Can represent the axial coordinate corresponding to the outlet end point coordinate of the first blade, SP can represent the thickness of the back surface of the second wheel disc, and further can obtain the outlet end point coordinate BS (D, Z) _exit1 +SP）。

The radius SR of the back support of the wheel disc can be determined according to the parameterized data of the wheel disc model, and then the radial coordinate R of the coordinate BM of the outlet endpoint of the second wheel disc can be obtained _BM =R _inlet1 The axial coordinates of the outlet end point coordinate BM of the second wheel are consistent with the outlet end point coordinate BS of the first wheel, namely Z _BM =Z _exit1 +SP, and thus the second wheel outlet endpoint coordinate BM (R _inlet1 /SR，Z _exit1 +SP）。

The fifth axial coordinate Z corresponding to the third wheel disc outlet endpoint coordinate BN can be determined according to the axial coordinate based on the first blade outlet endpoint coordinate and the thickness of the back surface of the first wheel disc _BN =Z _exit1 +T, the fifth radial coordinate corresponding to the outlet endpoint coordinate BN of the third wheel disc can be determined to be R according to the radial coordinate of the outlet endpoint coordinate of the first blade _exit1 It can be determined that the third wheel disc outlet end point coordinates BN are (R _exit1 ，Zexit1+T）。

After coordinate values of all wheel disc endpoints are obtained, two adjacent points are sequentially connected, namely NS-NN, NN-BS, BS-BM, BM-BN and BN-exit 1, a closed line frame, namely wheel disc meridian surface molded line, can be obtained, the wheel disc meridian surface molded line can form a wheel disc meridian surface around a forming mode, and 360-degree rotation stretching operation is carried out on the wheel disc meridian surface around an axis, so that a solid model of the centrifugal impeller wheel disc can be obtained.

Through inputting the blade endpoint coordinates of the pre-constructed centrifugal impeller blade model, such as the blade inlet end coordinates, the first blade outlet end coordinates and the second blade outlet end coordinates, and the input wheel disc model parameterization data, such as the hub fillet size, the first scale parameter, the second scale parameter, the third scale parameter, the wheel disc back support radius and the like, the centrifugal impeller wheel disc model matched with the centrifugal impeller blade model can be automatically generated, the manual participation proportion in the construction process of the centrifugal impeller wheel disc model is effectively reduced, the workload is reduced, the construction flow of the centrifugal impeller wheel disc model is effectively shortened, and the construction efficiency of the centrifugal impeller wheel disc model is improved.

In an example embodiment of the present disclosure, a unit disk model may be constructed by determining a unit disk width according to the number of blades input, a disk meridian plane formed by a disk meridian plane line, and the unit disk width, and a centrifugal impeller disk model matched with the centrifugal impeller blade model may be obtained by rotationally replicating and modeling the unit disk model.

The centrifugal impeller wheel disc model matched with the centrifugal impeller blade model can be generated according to the wheel disc meridian plane formed by the wheel disc meridian plane molded lines, and specifically, the OCC tool interface can be called, the wheel disc meridian plane is input into the OCC tool interface, and the centrifugal impeller wheel disc model matched with the centrifugal impeller blade model is generated. Of course, other types of three-dimensional geometric design tools may be used to generate the centrifugal impeller wheel disc model according to the wheel disc meridian plane formed by the wheel disc meridian plane molded lines, for example, autoCAD may also be used to generate the centrifugal impeller wheel disc model according to the wheel disc meridian plane, and the three-dimensional aggregate design tool used in this example embodiment is not limited in particular. For example, the centrifugal impeller disk model matched to the centrifugal impeller blade model of FIG. 4 may be obtained from a disk meridian constituted by the disk meridian lines of FIG. 3.

Optionally, the wheel disc model endpoint coordinates may be visually displayed, the new wheel disc model endpoint coordinates may be obtained in response to an adjustment operation on the wheel disc model endpoint coordinates, and the wheel disc meridian plane profile may be constructed according to the new wheel disc model endpoint coordinates.

The adjustment operation refers to an operation of adjusting the generated endpoint coordinates of the wheel disc model by the user, for example, an operation of adjusting the coordinate values of the endpoint coordinates of the wheel disc model by the user through touch or mouse dragging, or an operation of directly inputting new coordinate values to adjust the endpoint coordinates of the wheel disc model through the provided coordinate value modification window of the endpoint coordinates of the wheel disc model, and the type of the adjustment operation is not limited in this example embodiment.

When a certain parameter of the centrifugal impeller wheel disc model needs to be adjusted, the parameterized data of the wheel disc model or the generated endpoint coordinates of the wheel disc model are directly adjusted, the redetermined endpoint coordinates of the wheel disc model can be directly obtained, and then the adjusted centrifugal impeller wheel disc model is obtained.

In summary, according to the method for constructing the centrifugal impeller wheel disc model in the exemplary embodiment of the disclosure, the coordinates of the end points of the blades projected on the meridian plane by the pre-constructed centrifugal impeller blade model can be determined, then the coordinates of the end points of the wheel disc model projected on the meridian plane by the centrifugal impeller wheel disc model can be determined according to the input parameterized data of the wheel disc model and the coordinates of the end points of the blades, further, the wheel disc meridian plane molded line can be constructed based on the coordinates of the end points of the wheel disc model, and the centrifugal impeller wheel disc model matched with the centrifugal impeller blade model is generated through the wheel disc meridian plane molded line. On the one hand, the centrifugal impeller wheel disc model matched with the centrifugal impeller blade model can be automatically generated according to the blade end point coordinates of the pre-constructed centrifugal impeller blade model and the input wheel disc model parameterized data, so that the manual participation proportion in the construction process of the centrifugal impeller wheel disc model is effectively reduced, the workload is reduced, the construction flow of the centrifugal impeller wheel disc model is effectively shortened, and the construction efficiency of the centrifugal impeller wheel disc model is improved; on the other hand, when a certain parameter of the centrifugal impeller wheel disc model needs to be adjusted, the parameterized data of the wheel disc model or the generated endpoint coordinates of the wheel disc model can be directly adjusted, and the redetermined endpoint coordinates of the wheel disc model can be directly obtained, so that the adjusted centrifugal impeller wheel disc model is obtained.

It should be noted that although the steps of the methods of the present disclosure are illustrated in the accompanying drawings in a particular order, this does not require or imply that the steps must be performed in that particular order or that all of the illustrated steps be performed in order to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform, etc.

In addition, in the present exemplary embodiment, a centrifugal impeller wheel disc model building apparatus is also provided. Referring to fig. 5, the centrifugal impeller disk model constructing apparatus 500 includes: the system comprises a blade endpoint coordinate acquisition module 510, a disk model endpoint coordinate determination module 520, a disk meridian plane profile construction module 530 and a centrifugal impeller disk model generation module 540. Wherein:

the blade endpoint coordinate acquisition module 510 may be configured to load a pre-constructed centrifugal impeller blade model and determine the blade endpoint coordinates of the centrifugal impeller blade model projected on a meridian plane;

the wheel disc model endpoint coordinate determining module 520 may be configured to obtain input wheel disc model parametric data, and determine wheel disc model endpoint coordinates of the centrifugal impeller wheel disc model projected on a meridian plane according to the wheel disc model parametric data and the blade endpoint coordinates;

The wheel disc meridian profile construction module 530 may be configured to construct a wheel disc meridian profile based on the wheel disc model endpoint coordinates;

the centrifugal impeller disk model generation module 540 may be configured to generate a centrifugal impeller disk model to which the centrifugal impeller blade model matches from the disk meridian plane profile.

In one exemplary embodiment of the present disclosure, based on the foregoing, the blade endpoint coordinates include blade inlet endpoint coordinates, the disk model endpoint coordinates include first disk inlet endpoint coordinates, and the disk model parametric data include hub fillet sizes;

the wheel model endpoint coordinate determination module 520 is configured to:

determining a first size parameter according to a preset multiple and the hub fillet size;

determining a first axial coordinate through an axial coordinate corresponding to the blade inlet endpoint coordinate and the first dimension parameter;

and determining a first radial coordinate corresponding to the first axial coordinate on a flow passage projection line corresponding to the centrifugal impeller blade model, and determining the endpoint coordinate of the inlet of the first wheel disc according to the first radial coordinate and the first axial coordinate.

In one exemplary embodiment of the present disclosure, based on the foregoing, the wheel model endpoint coordinates include second wheel inlet endpoint coordinates adjacent to the first wheel inlet endpoint coordinates, the wheel model parametric data including first scale parameters;

The wheel model endpoint coordinate determination module 520 is configured to:

determining a second radial coordinate according to the radial coordinate corresponding to the blade inlet endpoint coordinate and the first proportional parameter;

determining a second axial coordinate according to the first axial coordinate;

and determining the second wheel disc inlet endpoint coordinates based on the second radial coordinates and the second axial coordinates.

In an exemplary embodiment of the present disclosure, based on the foregoing, the blade endpoint coordinates include a first blade outlet endpoint coordinate and a second blade outlet endpoint coordinate, the disk model endpoint coordinates include a first disk outlet endpoint coordinate, and the disk model parametric data includes a second scale parameter and a third scale parameter;

the wheel model endpoint coordinate determination module 520 is configured to:

determining the width of the blade outlet according to the axial coordinate corresponding to the first blade outlet endpoint coordinate and the axial coordinate corresponding to the second blade outlet endpoint coordinate;

determining the thickness of the back surface of the first wheel disc through the width of the blade outlet and the second proportion parameter;

determining a second wheel disc back thickness based on the first wheel disc back thickness and a third proportional parameter;

Determining a third axial coordinate according to an axial coordinate corresponding to the first blade outlet endpoint coordinate and the thickness of the back surface of the second wheel disc;

and determining a third radial coordinate through the second radial coordinate, and determining the outlet endpoint coordinate of the first wheel disc according to the third axial coordinate and the third radial coordinate.

In an exemplary embodiment of the present disclosure, based on the foregoing, the wheel model endpoint coordinates comprise second wheel outlet endpoint coordinates, and the wheel model parametric data comprises wheel back support radius;

the wheel model endpoint coordinate determination module 520 is configured to:

determining a fourth axial coordinate according to the axial coordinate corresponding to the first blade outlet endpoint coordinate and the thickness of the back surface of the second wheel disc;

determining a fourth radial coordinate through the radial coordinate of the first blade outlet endpoint coordinate and the wheel disc back support radius;

and determining the second wheel disc outlet endpoint coordinate based on the fourth axial coordinate and the fourth radial coordinate.

In an exemplary embodiment of the present disclosure, based on the foregoing, the wheel model endpoint coordinates include third wheel outlet endpoint coordinates, the wheel model endpoint coordinate determination module 520 is configured to:

Determining a fifth radial coordinate according to the radial coordinate of the first blade outlet endpoint coordinate;

determining a fifth axial coordinate based on the axial coordinate of the first blade outlet endpoint coordinate and the thickness of the back surface of the first wheel disc;

and determining the outlet endpoint coordinates of the third wheel disc through the fifth radial coordinates and the fifth axial coordinates.

In one exemplary embodiment of the present disclosure, based on the foregoing, the centrifugal impeller disk model generation module 540 is configured to:

determining the width of a unit wheel disc according to the input number of blades;

constructing a unit wheel disc model through the wheel disc meridian plane formed by the wheel disc meridian plane molded lines and the unit wheel disc width;

and obtaining the centrifugal impeller wheel disc model matched with the centrifugal impeller blade model by carrying out rotary replication modeling on the unit wheel disc model.

In one exemplary embodiment of the present disclosure, based on the foregoing approach, the roulette meridian profile construction module 530 is configured to:

visually displaying the endpoint coordinates of the wheel disc model;

responding to the adjustment operation of the endpoint coordinates of the wheel disc model to obtain new endpoint coordinates of the wheel disc model;

and constructing a meridian plane molded line of the wheel disc according to the endpoint coordinates of the new wheel disc model.

The specific details of each module of the above centrifugal impeller wheel disc model construction device are described in detail in the corresponding centrifugal impeller wheel disc model construction method, so that the details are not repeated here.

It should be noted that although several modules or units of the centrifugal impeller wheel disc model building apparatus are mentioned in the above detailed description, this division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit in accordance with embodiments of the present disclosure. Conversely, the features and functions of one module or unit described above may be further divided into a plurality of modules or units to be embodied.

In addition, in the exemplary embodiment of the disclosure, an electronic device capable of implementing the centrifugal impeller wheel disc model building method is also provided.

Those skilled in the art will appreciate that the various aspects of the present disclosure may be implemented as a system, method, or program product. Accordingly, various aspects of the disclosure may be embodied in the following forms, namely: an entirely hardware embodiment, an entirely software embodiment (including firmware, micro-code, etc.) or an embodiment combining hardware and software aspects may be referred to herein as a "circuit," module "or" system.

An electronic device 600 according to such an embodiment of the present disclosure is described below with reference to fig. 6. The electronic device 600 shown in fig. 6 is merely an example and should not be construed as limiting the functionality and scope of use of the disclosed embodiments.

As shown in fig. 6, the electronic device 600 is in the form of a general purpose computing device. Components of electronic device 600 may include, but are not limited to: the at least one processing unit 610, the at least one memory unit 620, a bus 630 connecting the different system components (including the memory unit 620 and the processing unit 610), a display unit 640.

Wherein the storage unit stores program code that is executable by the processing unit 610 such that the processing unit 610 performs steps according to various exemplary embodiments of the present disclosure described in the above-described "exemplary methods" section of the present specification. For example, the processing unit 610 may perform step S210 as shown in fig. 2, load a pre-constructed centrifugal impeller blade model, and determine the blade endpoint coordinates of the centrifugal impeller blade model projected on the meridian plane; step S220, acquiring input wheel disc model parameterized data, and determining wheel disc model endpoint coordinates of the centrifugal impeller wheel disc model projected on a meridian plane according to the wheel disc model parameterized data and the blade endpoint coordinates; step S230, constructing a meridian plane molded line of the wheel disc based on the endpoint coordinates of the wheel disc model; and step S240, generating a centrifugal impeller wheel disc model matched with the centrifugal impeller blade model through the wheel disc meridian plane molded line.

The storage unit 620 may include readable media in the form of volatile storage units, such as Random Access Memory (RAM) 621 and/or cache memory 622, and may further include Read Only Memory (ROM) 623.

The storage unit 620 may also include a program/utility 624 having a set (at least one) of program modules 625, such program modules 625 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment.

Bus 630 may be a local bus representing one or more of several types of bus structures including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or using any of a variety of bus architectures.

The electronic device 600 may also communicate with one or more external devices 670 (e.g., keyboard, pointing device, bluetooth device, etc.), one or more devices that enable a user to interact with the electronic device 600, and/or any devices (e.g., routers, modems, etc.) that enable the electronic device 600 to communicate with one or more other computing devices. Such communication may occur through an input/output (I/O) interface 650. Also, electronic device 600 may communicate with one or more networks such as a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet, through network adapter 660. As shown in fig. 6, network adapter 660 communicates with other modules of electronic device 600 over bus 630. It should be appreciated that although not shown, other hardware and/or software modules may be used in connection with electronic device 600, including, but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, data backup storage systems, and the like.

From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, and includes several instructions to cause a computing device (may be a personal computer, a server, a terminal device, or a network device, etc.) to perform the method according to the embodiments of the present disclosure.

In an exemplary embodiment of the present disclosure, a computer-readable storage medium having stored thereon a program product capable of implementing the method described above in the present specification is also provided. In some possible embodiments, the various aspects of the present disclosure may also be implemented in the form of a program product comprising program code for causing a terminal device to carry out the steps according to the various exemplary embodiments of the disclosure as described in the "exemplary methods" section of this specification, when the program product is run on the terminal device.

Referring to fig. 7, a program product 700 for implementing the above-described centrifugal impeller wheel disk model building method, which may employ a portable compact disk read-only memory (CD-ROM) and include program code, and which may be run on a terminal device, such as a personal computer, is described in accordance with an embodiment of the present disclosure. However, the program product of the present disclosure is not limited thereto, and in this document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium can be, for example, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium would include the following: an electrical connection having one or more wires, a portable disk, a hard disk, random Access Memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

The computer readable signal medium may include a data signal propagated in baseband or as part of a carrier wave with readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.

Program code embodied on a readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

Program code for carrying out operations of the present disclosure may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device, partly on a remote computing device, or entirely on the remote computing device or server. In the case of remote computing devices, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., connected via the Internet using an Internet service provider).

Furthermore, the above-described figures are only schematic illustrations of processes included in the method according to the exemplary embodiments of the present disclosure, and are not intended to be limiting. It will be readily appreciated that the processes shown in the above figures do not indicate or limit the temporal order of these processes. In addition, it is also readily understood that these processes may be performed synchronously or asynchronously, for example, among a plurality of modules.

From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, and includes several instructions to cause a computing device (may be a personal computer, a server, a touch terminal, or a network device, etc.) to perform the method according to the embodiments of the present disclosure.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. The method for constructing the centrifugal impeller wheel disc model is characterized by comprising the following steps of:

2. The centrifugal impeller disk model construction method of claim 1, wherein the blade end point coordinates comprise blade inlet end point coordinates, the disk model end point coordinates comprise first disk inlet end point coordinates, and the disk model parametric data comprise hub fillet sizes;

The determining the endpoint coordinates of the wheel disc model projected on the meridian plane of the centrifugal impeller wheel disc model according to the parameterized data of the wheel disc model and the endpoint coordinates of the blades comprises the following steps:

3. The centrifugal impeller disk model construction method of claim 2, wherein the disk model endpoint coordinates comprise second disk inlet endpoint coordinates adjacent to the first disk inlet endpoint coordinates, the disk model parametric data comprising first scale parameters;

determining a second axial coordinate according to the first axial coordinate;

4. The method of claim 3, wherein the blade endpoint coordinates comprise first blade outlet endpoint coordinates and second blade outlet endpoint coordinates, the disk model endpoint coordinates comprise first disk outlet endpoint coordinates, and the disk model parametric data comprises second scale parameters and third scale parameters;

5. The method of claim 4, wherein the disk model endpoint coordinates comprise second disk outlet endpoint coordinates and the disk model parametric data comprises disk back support radius;

6. The method of claim 4, wherein the wheel model endpoint coordinates comprise third wheel outlet endpoint coordinates, wherein determining wheel model endpoint coordinates of the centrifugal impeller wheel model projected on a meridian plane from the wheel model parametric data and the blade endpoint coordinates comprises:

7. The method for constructing a centrifugal impeller wheel disc model according to claim 1, wherein the generating the centrifugal impeller wheel disc model matched with the centrifugal impeller blade model through the wheel disc meridian plane profile comprises:

8. The method for constructing a centrifugal impeller wheel disc model according to claim 1, wherein the constructing a wheel disc meridian plane profile based on the wheel disc model end point coordinates comprises:

visually displaying the endpoint coordinates of the wheel disc model;

9. A centrifugal impeller wheel disc model building apparatus, comprising:

10. An electronic device, comprising:

a processor; and

a memory having stored thereon computer readable instructions which, when executed by the processor, implement the centrifugal impeller wheel disc model construction method of any one of claims 1 to 8.