CN114996783A - Design and manufacturing technology of parameterized sole lines - Google Patents

Abstract

The invention discloses a design and manufacturing technology of parameterized sole grains, which belongs to the technical field of sole production and comprises the following steps: s1 topology reconstruction: converting geometric parameters provided by a factory from a Bezier curved surface into a grid, and performing topology reconstruction on the discontinuous Bezier curve by using a dynamics simulation system based on the Kangaroo; s2 parameterization design: carrying out parametric design on the reconstructed model in S1 by utilizing the periodicity and continuity characteristics in the trigonometric function algorithm; s3 finite element analysis technique: the specific points are adopted and calibrated with data, whether the stress surface and the trend meet the requirements or not is visually analyzed, and the sole is designed through parameterization, so that a designer can obtain the sole pattern directly through the grid.

Description

Design and manufacturing technology of parameterized sole lines

Technical Field

The invention discloses a design and manufacturing technology of parameterized sole grains, belonging to the technical field of sole production.

Background

The sole is rather complex in construction and in a broad sense may include all of the materials forming the sole, such as the outsole, midsole and heel. In a narrow sense, only the outsole is referred to, and the common characteristics of the general sole materials should have the characteristics of wear resistance, water resistance, oil resistance, heat resistance, pressure resistance, impact resistance, good elasticity, easy adaptation to the foot shape, difficult deformation after shaping, heat preservation, easy moisture absorption and the like, and simultaneously should be matched with the midsole to have the brake function of preventing slipping and easy stopping when the foot is changed during walking.

The existing sole texture design is often completed by two steps: 1. the designer is responsible for outputting the 2D vector diagram, 2. the modeler is responsible for generating the 3D model, and the designer usually only participates in the production of the 2D vector diagram, and the designer can not edit the 3D texture in person all the time in the process, so that the design and the final form are usually greatly different.

Disclosure of Invention

The present invention is directed to solving the above problems and providing a design and manufacturing technique for a parameterized sole texture.

The invention realizes the aim through the following technical scheme, and the design and manufacturing technology of the parameterized sole grains comprises the following steps:

s1 topology reconstruction: converting geometric parameters provided by a factory from a Bezier curved surface into a grid, and performing topology reconstruction on the discontinuous Bezier curve by using a dynamics simulation system based on the Kangaroo;

s2 parameterization design: carrying out parametric design on the reconstructed model in S1 by utilizing the periodicity and continuity characteristics in the trigonometric function algorithm;

s3 finite element analysis technique: and calibrating the specific points and data, and visually analyzing whether the stress surface and the trend meet the requirements.

By adopting the technical scheme, a research and development team carries out topology reconstruction on the discontinuous Bezier curved surface through a dynamics simulation system based on the kangaroo, basic parameterized design is provided for the following design, the model building logic is designed instead of the single form, and a designer can finish the form editing by modifying parameters in a model building program. And the result obtained by the parametric design method has rich editability. The design case adopts a trigonometric function algorithm, and the regular form of the trigonometric function can be realized by the characteristics of periodicity and continuity of the trigonometric function.

Preferably, the parameterization design of S2 further includes: and adding parameters of dimensions such as pattern change, density, direction and the like into the parameters for editing.

Through adopting above-mentioned technical scheme, the joining of a plurality of dimensions can effectual feedback go out the parameter of sole line to let the designer can carry out better design.

Preferably, the transformation techniques and the process of shading manufacturing in S1 and S2 are modularized.

Through adopting above-mentioned technical scheme, utilize the modularization to make some simple shading can direct generations to reduce designer's work load.

Preferably, the S1 topology reconstruction includes the following steps:

a basic B-rep model provided by a factory is input into the topological classification, and a closed-loop body and an open body are distinguished;

drawing a low-order bounding box grid in the closed loop, and subdividing the low-order bounding box grid by the grid;

if the system is opened, carrying out a plurality of dimension variable quantities to classify a plane and a sphere;

extracting a plane outline from the class plane, drawing a plane basic grid, and finally carrying out grid subdivision;

drawing a low-order bounding box grid by the sphere-like surface, deleting the gap grid, and finally carrying out grid subdivision;

and (4) dynamically fitting the body after subdivision is completed, adding constraint control at the moment, finally generating data and outputting the data into a heavy topology grid.

By adopting the technical scheme, the designer can directly design the three-dimensional shading through the topology reconstruction technology, so that the communication difference between design modeling is reduced, and the designer can design the shading which meets the requirements.

Compared with the prior art, the method has the advantages that the B-rep format in a factory is converted into the F-rep format by utilizing the topology reconstruction technology, so that the newly generated grid can be directly designed, a designer can better accord with the design thought of the designer when designing the sole shading, and the designer can design the proper shading.

Drawings

FIG. 1 is a schematic representation of reconstitution transformation;

fig. 2 is a schematic structural diagram of a topology reconstruction technique flow.

Detailed Description

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the designated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 and 2, a design and manufacturing technique of parameterized sole texture comprises the following steps:

s1 topology reconstruction: and converting the geometric parameters provided by the factory from the Bezier curved surface into a grid, performing topology reconstruction on the discontinuous Bezier curve by using a dynamics simulation system based on the Kangaroo, and performing modularization.

The S1 topology reconstruction includes the following processes:

a basic B-rep model provided by a factory is input into the topological classification, and a closed-loop body and an open body are distinguished;

drawing a low-order bounding box grid in the closed loop, and subdividing the low-order bounding box grid by the grid;

if the system is opened, carrying out a plurality of dimension variable quantities to classify a plane and a sphere;

extracting a plane outline from the class plane, drawing a plane basic grid, and finally carrying out grid subdivision;

drawing a low-order bounding box grid by the sphere-like surface, deleting the gap grid, and finally carrying out grid subdivision;

and after subdivision is completed, performing dynamic fitting on the body, adding constraint control at the moment, finally generating data and outputting the data into a heavy topology grid.

The sole grains are converted into the F-rep model through the B-rep model in the S1 process, and a designer can visually see the specific forms of all parts by utilizing the characteristics of the grids of the F-rep model, so that the designer can directly adjust the patterns, the designer can timely participate in the design and adjustment of the three-dimensional model during design, and the designer can better design the sole grains wanted in the center during design.

S2 parameterization design: by utilizing the periodicity and continuity characteristics in the trigonometric function algorithm, the reconstructed model in the S1 is subjected to parametric design, and dimension parameter editing such as pattern change, density, direction and the like is added, so that the module can be dynamically changed during design, the use scene is simulated, and a better design effect is achieved;

utilize the analysis of dynamic change receipt, the designer can utilize the change of data to let in the design of dynamicization and carry out the analysis to the sole line to let the use of the environment of laminating more of the design of sole line, data change through the dynamicization, make the sole line can be better when designing obtain the optimal solution, thereby design better sole line.

S3 finite element analysis technique: and calibrating the specific points and data, analyzing whether the stress surface and the trend meet the requirements, redesigning if the stress surface and the trend do not meet the requirements, and directly designing the die if the stress surface and the trend meet the requirements.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (4)

1. A design and manufacturing technology of parameterized sole grains is characterized by comprising the following steps:

s1 topology reconstruction: converting geometric parameters provided by a factory from a Bezier curved surface into a grid, and performing topology reconstruction on the discontinuous Bezier curve by using a dynamics simulation system based on the Kangaroo;

s2 parameterization design: carrying out parameterization design on the model reconstructed in the S1 by utilizing the periodicity and continuity characteristics in the trigonometric function algorithm;

s3 finite element analysis technique: and calibrating the specific points and data, and visually analyzing whether the stress surface and the trend meet the requirements.

2. The parametric sole texture design and manufacturing technique of claim 1, wherein: the parameterized design at S2 further includes: and adding parameter editing of dimensions such as pattern change, density, direction and the like into the parameters.

3. The parametric sole texture design and manufacturing technique of claim 2, wherein: the conversion techniques and the process of the shading manufacturing in S1 and S2 are modularized.

4. The parametric shoe sole texture design and manufacturing technology of claim 3, wherein: the S1 topology reconstruction includes the following procedures:

a basic B-rep model provided by a factory is input into the topological classification, and a closed-loop body and an open body are distinguished;

drawing a low-order bounding box grid in the closed loop, and subdividing the low-order bounding box grid by the grid;

if the system is opened, carrying out a plurality of dimension variable quantities to classify a plane and a sphere;

extracting a plane outline from the class plane, drawing a plane basic grid, and finally carrying out grid subdivision;

drawing a low-order bounding box grid by the sphere-like surface, deleting the gap grid, and finally carrying out grid subdivision;

and after subdivision is completed, performing dynamic fitting on the body, adding constraint control at the moment, finally generating data and outputting the data into a heavy topology grid.

Images