CN212782026U - Sole with spherical porous heel area filling structure - Google Patents
Sole with spherical porous heel area filling structure Download PDFInfo
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- CN212782026U CN212782026U CN202022194062.4U CN202022194062U CN212782026U CN 212782026 U CN212782026 U CN 212782026U CN 202022194062 U CN202022194062 U CN 202022194062U CN 212782026 U CN212782026 U CN 212782026U
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Abstract
The utility model discloses a porous heel district filled structure sole of spheroid, include: a sole body; the sole body is filled with the spheroid that the array set up in sole heel region. The sole with the spherical porous filling structure optimizes the performance of the sole.
Description
Technical Field
The utility model relates to a sole, concretely relates to porous heel district filled structure sole of spheroid.
Background
The shoe is an important shock-absorbing and buffering tool in the walking process of a person, and plays an important role in shock absorption and protection of the foot. The experimental method for researching the shock absorption performance of the foot shoes has various defects, such as long experimental period, high cost and the like. Accordingly, more and more researchers are beginning to use finite element methods to study the shock absorbing performance of footwear using computers.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the main technical problem that a spheroid porous heel district filling structure sole is provided, the performance of sole has been optimized.
In order to solve the technical problem, the utility model provides a porous heel district of spheroid fills structure sole which characterized in that includes: a sole body; the sole body is filled with the hollow spheres arranged in an array in the heel area of the sole.
In a preferred embodiment: the sphere radius is 4.5mm, the array spacing is 7mm, and the porosity is 1.02%
Compared with the prior art, the utility model discloses following beneficial effect has:
1) the optimization model of the sole with the porous filling structure in the heel area is provided, and the optimization models of the sole with the porous filling structure with different porosities and spatial distributions are obtained by changing relevant parameters of the porous structure;
2) the foot motion process is numerically simulated through a finite element analysis method, and the maximum strain energy, the maximum stress and the maximum displacement data of the porous filling structure sole optimization model in the process are obtained.
3) And comparing the maximum strain energy, the maximum stress and the maximum displacement of the optimization models of the soles with different porosities and spatial distributions to obtain the optimal optimized structure of the soles with the spherical porous filling structure.
4) Through the utility model discloses carry out the sole analysis and can provide guiding significance for the design and the production of sole.
Drawings
FIG. 1 is a schematic flow chart of the main steps of the method in the preferred embodiment of the present invention;
FIG. 2 is a diagram of an optimized model of a sole with an optimized porous filling structure according to a preferred embodiment of the present invention;
fig. 3 is a three-dimensional model of a foot-sole system in accordance with a preferred embodiment of the present invention.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are used in a broad sense, and for example, "connected," may be fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, or connected between two elements.
Referring to fig. 1, a method for optimally designing a sole with a filling structure in a spherical porous heel area comprises the following steps:
step S1, establishing a sole model;
step S2, selecting a sole heel area as a sole optimization design area, and performing porous structure modeling in the sole heel area to obtain a sole model with a spherical porous filling structure, which specifically comprises the following steps:
step S21: setting a sole heel area in UG;
step S22: establishing a ball array filling model in a heel area, wherein the rule of the ball array filling model is a ball model with the radius of r, and the ball model is arrayed at the interval of a;
step S23: and performing Boolean reduction operation on the ball array filling model in the heel area and the heel area of the sole to obtain a sole model with a ball porous heel area filling structure, as shown in FIG. 2.
Step S3, changing the relevant parameters of the porous structure to obtain a plurality of spherical porous filling structure sole models with different porosities, which specifically comprises the following steps:
step S31: respectively formulating combinations of different sphere radiuses r and array pitches a;
step S32: and repeatedly executing the step S2 to obtain the sole model with the spherical porous filling structure with different porosities.
Step S4: constructing a foot finite element model containing bones, soft tissues and muscle keys in UG, assembling the foot finite element model with a spherical porous filling structure sole model with different porosities together, and respectively obtaining a plurality of foot-sole system three-dimensional models containing soles with different porosities, as shown in figure 3, specifically comprising:
step S41: acquiring CT scanning data of the foot by utilizing a CT scanning technology;
specifically, the CT scanning data in the invention is obtained from a volunteer, a male, and the weight of the male is 58 kg;
step S42: importing foot CT scanning data into medical software MIMICS, and establishing a rough foot bone entity model through corresponding mask extraction, threshold segmentation, region growing, mask editing and 3D calculation operations;
step S43: adopting polygon processing, curved surface construction, curved surface refinement and fairing processing operations in the Geomagic Studio to establish a fairing foot bone model;
step S44: and (3) introducing the foot bone model into UG, constructing a soft tissue model in the UG, and finally assembling the calcaneus, the soft tissue and the porous filling structure sole optimization model together to form a plurality of foot-sole system three-dimensional models containing soles with different porosities.
Step S5: introducing a plurality of foot-sole system three-dimensional models containing soles with different porosities into ABAQUS, carrying out grid division and boundary condition setting, carrying out kinetic analysis, and outputting stress, displacement and strain energy of the soles; the method specifically comprises the following steps:
step S51: importing the plurality of foot-sole system three-dimensional models containing soles with different porosities into ABAQUS, and performing material attribute assignment, meshing and contact setting in the ABAQUS;
specifically, the calcaneus density is set to 1500kg/m3Elastic modulus is set to 7300MPa, Poisson's ratio is set to 0.3; the soft tissue density is set to 937kg/m3The modulus of elasticity is set to 0.45MPa, and the Poisson ratio is set to 0.48; the density of the sole is set to 1230kg/m3The modulus of elasticity was set to 4MPa and the Poisson's ratio was set to 0.4.
Step S52: setting boundary conditions and load application of a system model, simulating a foot motion process, and performing dynamic analysis;
specifically, the sole is constrained by only three degrees of freedom of the bottom surface, namely: the shoe sole has the advantages that X is 0, Y is 0, Z is 0, the upper end face of the shoe sole is in surface-to-surface contact with soft tissues, and the friction coefficient is 0.6; setting boundary conditions conforming to actual conditions, and completing dynamic simulation analysis of the sole foot finite element model. Foot finite element model
Step S53: and after the analysis is finished, extracting strain energy, stress and displacement data of the sole.
Step S6: the biggest strain energy of the porous filling structure sole model of spheroid of different porosities of contrast, maximum stress, data such as maximum displacement obtain the porous filling structure sole optimized structure of optimal spheroid, specifically include:
step S61: obtaining maximum strain energy, maximum stress and maximum displacement data of each sole model;
step S62: the maximum strain energy, the maximum stress and the maximum displacement of the sole models with the spherical porous filling structures with different porosities are respectively compared to obtain an optimal sole optimization structure with the spherical porous filling structures, namely, when the radius of a sphere is 4.5mm and the array interval is 7mm, the porosity of the sole with the spherical porous filling structures is 1.02%, as shown in fig. 2.
The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.
Claims (2)
1. A sole with a ball-shaped porous heel region filling structure is characterized by comprising: a sole body; a ball array filling model is established in a heel area of the sole body, and a sole model with a ball porous filling structure is obtained so as to fill hollow balls arranged in an array in a heel area of the sole.
2. The spherical cellular heel area filling structure sole according to claim 1, wherein: the sphere radius is 4.5mm, the array spacing is 7mm, and the porosity is 1.02%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022194062.4U CN212782026U (en) | 2020-09-29 | 2020-09-29 | Sole with spherical porous heel area filling structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022194062.4U CN212782026U (en) | 2020-09-29 | 2020-09-29 | Sole with spherical porous heel area filling structure |
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| CN212782026U true CN212782026U (en) | 2021-03-23 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112084606A (en) * | 2020-09-29 | 2020-12-15 | 华侨大学 | Sole with spherical porous heel area filling structure and optimal design method thereof |
| CN112199790A (en) * | 2020-09-29 | 2021-01-08 | 华侨大学 | Sole with regular polyhedron porous heel area filling structure and design method thereof |
| CN112199790B (en) * | 2020-09-29 | 2024-06-07 | 华侨大学 | Regular polyhedron porous heel area filling structure sole and design method thereof |
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2020
- 2020-09-29 CN CN202022194062.4U patent/CN212782026U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112084606A (en) * | 2020-09-29 | 2020-12-15 | 华侨大学 | Sole with spherical porous heel area filling structure and optimal design method thereof |
| CN112199790A (en) * | 2020-09-29 | 2021-01-08 | 华侨大学 | Sole with regular polyhedron porous heel area filling structure and design method thereof |
| CN112199790B (en) * | 2020-09-29 | 2024-06-07 | 华侨大学 | Regular polyhedron porous heel area filling structure sole and design method thereof |
| CN112084606B (en) * | 2020-09-29 | 2024-06-07 | 华侨大学 | Ball porous heel area filling structure sole and optimal design method thereof |
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