Tire segment profile design method, application and computer program product

Abstract

The present invention relates to the technical field of tire computer-aided design, and more particularly to a tire segmented profile design method, application, and computer program product. This method allows segmented design of a profile drawing, with different designs for each position component managed in a library. During profile design, library files can be freely called, freely combined, and then parameterized, enabling more flexible and convenient design and improving design efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of computer-aided tire design, and in particular to a tire segmented profile design method, application, and computer program product. Background Art

[0002] There are many different approaches to tire profile design. Modifying the shoulder, sidewall, or other design methods requires revising and recreating the profile template, resulting in a large number of template variations. R&D personnel must manually draw the profile from top to bottom or expand the template based on the original tire type, limiting the freedom of software design for new designs. Summary of the Invention

[0003] In order to solve the above-mentioned technical problems, the purpose of the present invention is to provide a tire segmented contour design method, which can perform segmented design on the contour map, and manage the different designs of each position component in a library. When designing the contour, the library file can be freely called, and then freely combined, and then parameter design can be performed, so as to achieve freer and more convenient design and improve design efficiency.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0005] A tire segment profile design method, the method comprising the following steps:

[0006] 1) Split the profile diagram according to the design into four tread arcs (Tread-1, Tread-2, Tread-3, Tread-4), shoulder (S1), upper sidewall (UpperSideWall), lower sidewall (LowerSideWall), bead (CBO), pattern groove bottom (TPI1) and steel plate groove bottom (TPI2);

[0007] 2) Parametric modeling of the split profile. After the above 10 parts are modeled, three new templates are added: the reference design template (Reference), the optimized upper and lower sidewall and TPI2 templates (US), and the optimized shoulder design curve and tread design curve (S2). At least 13 templates are required for the splicing design of one profile.

[0008] 3) The outline assembly needs to follow the design sequence, and the output of the previous design serves as the input of the next design;

[0009] 4) The modeled templates are numbered according to the order in which they are assembled, and the current template effect after assembly is highlighted and a screenshot is taken for displaying the current template graphic example in the subsequent program interface;

[0010] 5) Use CATIA software to create parametric templates for all designs of the classified segmented contour lines and establish a template library;

[0011] 6) Secondary development through CAA;

[0012] 7) After completing the template assembly design, the final result is a complete contour curve and the points and curves required for subsequent material distribution diagrams, 3D patterns, and 3D sidewall designs.

[0013] Preferably, the order of templates after the outline splitting in step 3) is as follows:

[0014] 3.1) Reference: Reference element design and modeling is performed based on the designed outer diameter D, designed section width B, designed rim width C, engagement diameter DR, and the height H2 from the widest point of the profile to the engagement point of the rim.

[0015] 3.2) CBO: bead bead outline;

[0016] 3.3) LowerSideWall: Lower sidewall profile, including the presence or absence of bosses and the lower sidewall curves obtained by different design methods;

[0017] 3.4) UpperSideWall: basic arc of upper sidewall profile;

[0018] 3.5) Tread-1, Tread-2, Tread-3, Tread-4: The tread is divided into four sections;

[0019] 3.6) TPI1: groove bottom;

[0020] 3.7) TPI2: shoulder steel groove bottom;

[0021] 3.8) US: Optimize the upper and lower sidewalls and TPI2, and output the entire sidewall curve and complete TPI2 curve and related points;

[0022] 3.9) S1: shoulder design;

[0023] 4.0) Optimize the shoulder design curve and tread design curve to output the pattern contour line and corresponding points.

[0024] Preferably, the method further includes realizing automatic calling of template instantiation in sequence and providing parameter editing function through CAA secondary development.

[0025] Preferably, the method further includes activating an interactive selection function when realizing multiple different designs through CAA secondary development, and after selecting a corresponding template, listing relevant parameters for user modification.

[0026] Preferably, the method further includes creating a geometric graphics set through CAA secondary development; further, placing the instantiation result into the geometric graphics set.

[0027] Preferably, the method further includes renaming some elements through CAA secondary development.

[0028] Furthermore, the present invention also discloses the application of the tire segment profile design method in tire profile design.

[0029] Furthermore, the present invention also discloses a computer device, comprising a memory, a processor, and a computer program stored in the memory, wherein the processor executes the computer program to implement the method.

[0030] Furthermore, the present invention also discloses a computer-readable storage medium having a computer program or instruction stored thereon, which implements the method when the computer program or instruction is executed by a processor.

[0031] Furthermore, the present invention also discloses a computer program product, comprising a computer program or instructions, which implement the method when executed by a processor.

[0032] Since the present invention adopts the above-mentioned technical solution, the method can design the contour drawing in sections, and the different designs of each position component can be managed in a library. When designing the contour, the library file can be freely called, and then freely combined, and then parameter design can be performed, thereby achieving freer and more convenient design and improving design efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figures 1-13 This is an example of the calling interface for the CAA secondary development program template.

[0034] Figure 14 This is an example of contour parameterization made in this invention. DETAILED DESCRIPTION

[0035] The present invention will be further described in detail below with reference to the accompanying drawings: This embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation method is given, but the protection scope of the present invention is not limited to the following embodiments.

[0036] A tire segment profile design method, the method comprising the following steps:

[0037] 1) Split the outline diagram according to the design into 10 parts: four tread arcs (Tread-1, Tread-2, Tread-3, Tread-4), shoulder (S1), upper sidewall (UpperSideWall), lower sidewall (LowerSideWall), bead (CBO), pattern groove bottom (TPI1), and steel plate groove bottom (TPI2).

[0038] 2) The split profile is parametrically modeled. Since the template requires benchmark and link optimization, after the above 10 parts are modeled, three new templates are added: the benchmark design template (Reference), the optimized upper and lower sidewall and TPI2 template (US), and the optimized shoulder design curve and tread design curve (S2). One profile requires 13 templates for splicing design.

[0039] 3) Parametric modeling is performed on the split outline. The outline assembly needs to follow the design order, and the output of the previous design is used as the input of the next design. Template order after the outline is split:

[0040] a) Reference: Reference element, based on the design outer diameter D, design section width B, design rim width C, engagement diameter DR, and height H2 from the widest point of the profile to the engagement part of the rim, the reference element design modeling is performed (e.g. Figure 1 );

[0041] b) CBO: bead mold contour (such as Figure 2 );

[0042] c) LowerSideWall: The lower sidewall profile, including the presence or absence of bosses and the lower sidewall curves obtained by different design methods (such as Figure 3 );

[0043] d) UpperSideWall: Basic arc of upper sidewall profile (such as Figure 4 );

[0044] e) Tread-1, Tread-2, Tread-3, Tread-4: The tread is divided into four sections (e.g. Figure 5-Figure 8 );

[0045] f)TPI1: groove bottom (such as Figure 9 );

[0046] g)TPI2: shoulder steel groove bottom (such as Figure 10 );

[0047] h) US: Optimize the upper and lower sidewalls and TPI2, output the entire sidewall curve and the complete TPI2 curve and related points (such as Figure 11 );

[0048] i)S1: Shoulder design (e.g. Figure 12 );

[0049] j) S2: Optimize the shoulder design curve and tread design curve to output the pattern contour line and corresponding points (such as Figure 13 ).

[0050] 4) The above templates are numbered according to the order in which they are assembled, and the current template effect after assembly is highlighted and a screenshot is taken for displaying the current template graphic example in the subsequent program interface.

[0051] 5) All designs of the above classified segmented contour lines are used to create parametric templates through CATIA software and establish a template library.

[0052] 6) Secondary development through CAA

[0053] a) Automatically call template instantiation in sequence and provide parameter editing function;

[0054] b) When there are multiple different designs, activate the interactive selection function, select the corresponding template, and list the relevant parameters for users to modify;

[0055] c) Create a geometric set;

[0056] d) putting the instantiation result into a geometric set;

[0057] e) Rename some elements and perform other operations.

[0058] 7) After completing the template assembly design, the final result is a complete outline drawing, and the points and curves required for subsequent material distribution diagrams, 3D patterns, and 3D sidewall designs are output.

[0059] The above is a description of the embodiments of the present invention. The above description of the disclosed embodiments will enable professionals in the field to implement or use the present invention. Various modifications to these embodiments will be apparent to professionals in the field. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A tire segment profile design method, characterized in that: The method comprises the following steps: 1) Split the profile diagram according to the design into four tread arcs (Tread-1, Tread-2, Tread-3, Tread-4), shoulder (S1), upper sidewall (UpperSideWall), lower sidewall (LowerSideWall), bead (CBO), pattern groove bottom (TPI1) and steel plate groove bottom (TPI2); 2) Parametric modeling of the split profile. After the 10 parts mentioned above are modeled, three new templates are added: the reference design template (Reference), the optimized upper and lower sidewall and steel plate groove bottom template (US), and the optimized shoulder design curve and tread design curve (S2). At least 13 templates are required for the splicing design of one profile. 3) The outline assembly needs to follow the design sequence, and the output of the previous design serves as the input of the next design; 4) The modeled templates are numbered according to the order in which they are assembled, and the current template effect after assembly is highlighted and a screenshot is taken for displaying the current template graphic example in the subsequent program interface; 5) Use CATIA software to create parametric templates for all designs of the classified segmented contour lines and establish a template library; 6) Secondary development through CAA; 7) After completing the template assembly design, the final result is a complete contour curve and the points and curves required for subsequent material distribution diagrams, 3D patterns, and 3D sidewall designs.

2. A tire segment profile design method according to claim 1, characterized in that: Step 3) After the outline is split, the template order is as follows: 3.1) Reference: Reference element design and modeling is performed based on the designed outer diameter D, designed section width B, designed rim width C, engagement diameter DR, and the height H2 from the widest point of the profile to the engagement point of the rim. 3.2) CBO: bead bead outline; 3.3) LowerSideWall: Lower sidewall profile, including the presence or absence of bosses and the lower sidewall curves obtained by different design methods; 3.4) UpperSideWall: basic arc of upper sidewall profile; 3.5) Tread-1, Tread-2, Tread-3, Tread-4: The tread is divided into four sections; 3.6) TPI1: groove bottom; 3.7) TPI2: shoulder steel groove bottom; 3.8) US: Optimize the upper and lower sidewalls and TPI2, and output the entire sidewall curve and complete TPI2 curve and related points; 3.9) S1: shoulder design; 4.0) Optimize the shoulder design curve and tread design curve to output the pattern contour line and corresponding points.

3. The tire segment profile design method according to claim 1, characterized in that: The method also includes realizing automatic calling of template instantiation in sequence and providing parameter editing function through CAA secondary development.

4. A tire segment profile design method according to claim 1, characterized in that: The method also includes activating an interactive selection function when implementing multiple different designs through CAA secondary development, and after selecting a corresponding template, listing relevant parameters for users to modify.

5. The tire segment profile design method according to claim 1, characterized in that: The method also includes creating a geometric graphics set through CAA secondary development; further, placing the instantiation result into the geometric graphics set.

6. The tire segment profile design method according to claim 1, characterized in that: The method also includes renaming some elements through CAA secondary development.

7. Application of a tire segment profile design method in tire profile design, characterized in that: The method adopts a tire segment profile design method according to any one of claims 1 to 6.

8. A computer device comprising a memory, a processor, and a computer program stored in the memory, wherein: The processor executes the computer program to implement the method according to any one of claims 1 to 6.

9. A computer-readable storage medium having a computer program or instruction stored thereon, characterized in that: When the computer program or instruction is executed by a processor, the method according to any one of claims 1 to 6 is implemented.

10. A computer program product comprising a computer program or instructions, characterized in that When the computer program or instruction is executed by a processor, the method according to any one of claims 1 to 6 is implemented.

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