CN112199790A - Sole with regular polyhedron porous heel area filling structure and design method thereof - Google Patents
Sole with regular polyhedron porous heel area filling structure and design method thereof Download PDFInfo
- Publication number
- CN112199790A CN112199790A CN202011052541.0A CN202011052541A CN112199790A CN 112199790 A CN112199790 A CN 112199790A CN 202011052541 A CN202011052541 A CN 202011052541A CN 112199790 A CN112199790 A CN 112199790A
- Authority
- CN
- China
- Prior art keywords
- sole
- porous
- regular polyhedron
- heel area
- models
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000013461 design Methods 0.000 title claims description 9
- 239000011148 porous material Substances 0.000 claims abstract description 29
- 238000004458 analytical method Methods 0.000 claims abstract description 10
- 238000006073 displacement reaction Methods 0.000 claims description 17
- 238000002591 computed tomography Methods 0.000 claims description 9
- 210000004872 soft tissue Anatomy 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 6
- 238000005457 optimization Methods 0.000 claims description 4
- 210000000988 bone and bone Anatomy 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- 210000000610 foot bone Anatomy 0.000 claims description 3
- 238000012933 kinetic analysis Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000011218 segmentation Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 210000002435 tendon Anatomy 0.000 claims description 3
- 210000000474 heel Anatomy 0.000 description 43
- 210000002683 foot Anatomy 0.000 description 15
- 230000035939 shock Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 210000000459 calcaneus Anatomy 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/17—Mechanical parametric or variational design
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
- A43B13/18—Resilient soles
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
- G06F30/23—Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T19/00—Manipulating 3D models or images for computer graphics
- G06T19/20—Editing of 3D images, e.g. changing shapes or colours, aligning objects or positioning parts
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
- G06T7/0004—Industrial image inspection
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
- G06T7/0012—Biomedical image inspection
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/10—Segmentation; Edge detection
- G06T7/136—Segmentation; Edge detection involving thresholding
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/10—Segmentation; Edge detection
- G06T7/187—Segmentation; Edge detection involving region growing; involving region merging; involving connected component labelling
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2111/00—Details relating to CAD techniques
- G06F2111/04—Constraint-based CAD
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2111/00—Details relating to CAD techniques
- G06F2111/10—Numerical modelling
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/14—Force analysis or force optimisation, e.g. static or dynamic forces
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10072—Tomographic images
- G06T2207/10081—Computed x-ray tomography [CT]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30004—Biomedical image processing
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30004—Biomedical image processing
- G06T2207/30008—Bone
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30108—Industrial image inspection
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Geometry (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Quality & Reliability (AREA)
- Evolutionary Computation (AREA)
- Pure & Applied Mathematics (AREA)
- Mathematical Optimization (AREA)
- Mathematical Analysis (AREA)
- Computational Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Architecture (AREA)
- Computer Graphics (AREA)
- Software Systems (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
The invention discloses a method for designing a regular polyhedron porous heel area filling structure sole, which comprises the following steps: step S1, establishing a sole model; step S2, respectively establishing a plurality of different regular polyhedron porous structure models in the sole heel area; step S3, respectively setting different parameters for the porous structures in the sole models with the porous filling structures of the different front bodies so as to obtain three groups of sole models with the porous filling structures of the regular polyhedrons in the heel areas with different porosities and the same pore type; step S4, constructing a plurality of groups of three-dimensional foot-sole system models of the soles with the porous filling structures and different porosities and the same pore type; step S5, performing dynamic analysis on the three-dimensional model; and step S6, comparing the data of different porosities and different soles to obtain the optimal optimized structure of the sole with the porous filling structure. The invention also provides a sole with a regular polyhedron porous heel area filling structure.
Description
Technical Field
The invention relates to an optimization design method, in particular to a design method of a porous regular polyhedron filling structure sole.
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.
Disclosure of Invention
The invention provides a method for researching the buffer performance of a sole in the foot motion process and the optimal design of the sole with a porous filling structure in a heel area based on an energy method and a finite element method, and can provide theoretical guidance and reference for manufacturing and designing the sole.
In order to solve the technical problem, the invention provides a method for optimally designing a sole with a filling structure of a regular polyhedron porous heel area, which comprises the following steps:
step S1, establishing a sole model;
step S2, selecting a sole heel area as a sole optimization design area, and respectively establishing a plurality of different regular polyhedron porous structure models in the sole heel area to obtain sole models with a plurality of regular polyhedron porous filling structures in the sole heel area;
step S3, respectively setting different parameters for the porous structures in the sole models with the multiple kinds of heel area regular polyhedron porous filling structures, so as to obtain multiple groups of sole models with the heel area regular polyhedron porous filling structures with different porosities and the same pore type;
step S4, establishing a foot finite element model containing bones, soft tissues and tendon keys, assembling the foot finite element model with a plurality of groups of sole models with the same pore type and the same porosity and the same pore type of the regular polyhedron porous filling structure, and respectively obtaining a plurality of groups of three-dimensional models of the foot-sole system with the same pore type and the different porosity;
step S5, importing a plurality of groups of foot-sole system three-dimensional models of soles with porous filling structures with different porosities and the same pore type into ABAQUS, carrying out grid division and boundary condition setting, and carrying out kinetic analysis to obtain the stress, displacement and strain energy of the soles;
and step S6, comparing the data of maximum strain energy, maximum stress, maximum displacement and the like of the soles with the porous filling structures with different porosities and different porous structure types to obtain the optimal optimized structure of the soles with the porous filling structures.
In a preferred embodiment, the step S2 specifically includes:
step S21: setting a sole heel area in UG;
step S22: selecting a sole heel area as a porous structure filling area, and establishing a plurality of regular polyhedron array filling models in the area to obtain sole models with various porous heel area filling structures;
the establishment rule of the plurality of regular polyhedron array filling models in the heel area is that a regular polyhedron model with the side length of a is arrayed at a distance d to obtain a plurality of regular polyhedron porous heel area filling structure sole models; the side lengths of the regular polyhedrons in the sole model with the filling structure of the plurality of regular polyhedron porous heel areas are different.
In a preferred embodiment, the step S3 specifically includes:
step S31: respectively formulating the combination of a plurality of groups of regular polyhedron side lengths a and array intervals d;
step S32: and (3) repeating the step (2) to ensure that each sole model with the heel area regular polyhedron porous filling structure has a group of sole models with different porosities and the same pore type and with the heel area regular polyhedron porous filling structure.
In a preferred embodiment, the step S4 specifically includes:
step S41: acquiring CT scanning data of the foot by utilizing a CT scanning technology;
step S42: importing foot CT scanning data into medical software MIMICS, and establishing a rough foot solid 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 finally, assembling the complete foot model with a plurality of groups of sole models with the same porosity and the same pore type and adopting a regular polyhedron porous filling structure in the heel region to form a three-dimensional foot-sole system model with a plurality of groups of soles with the same pore type and different porosities.
In a preferred embodiment, the step S5 specifically includes:
step S51: in the three-dimensional foot-sole system model ABAQUS of the porous filling structure sole with different porosities and the same pore type, the material attribute assignment, meshing and contact setting are carried out in the ABAQUS;
step S52: setting boundary conditions and load application of a system model, simulating a motion process of a foot-sole system, and performing dynamic analysis;
step S53: and after the analysis is finished, obtaining the maximum strain energy, the maximum stress and the maximum displacement data of the sole.
In a preferred embodiment, the step S6 specifically includes:
step S61: respectively comparing the maximum strain energy, the maximum stress and the maximum displacement of the soles with different porosities and the same porous structure type to obtain the optimal structures of the soles with different porosity porous structure types;
step S62: and (4) comparing the maximum strain energy, the maximum stress and the maximum displacement of the optimal structure of the shoe sole with different porous structure types and different porosity porous structure types in the step (S61) to obtain the optimal structure of the shoe sole with the porous filling structure.
The invention also provides a regular polyhedron porous heel area filling structure sole, which comprises: a sole body; the sole body is filled with the hollow regular polyhedron of array setting in sole heel region.
In a preferred embodiment: the porosity of the regular polyhedron array is 1.2%, and the regular polyhedron is a regular tetrahedron.
Compared with the prior art, the invention has the following beneficial effects:
1) a sole model with a regular polyhedron porous filling structure in a heel area of a regular polyhedron porous filling structure type is provided, and the sole model with the regular polyhedron porous filling structure in the heel area of the same porosity and the same pore type is 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 model in the process are obtained.
3) The maximum strain energy, the maximum stress and the maximum displacement of the sole models with the regular polyhedron porous filling structures with different porosities and the same pore type are compared to obtain the optimal optimized sole structure with the regular polyhedron porous filling structure.
4) The sole analysis performed by the invention can provide guiding significance for the design and production of the 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 schematic view of a preferred embodiment of the present invention of a sole model with a porous filling structure;
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 embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that 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.
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 those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred 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. 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 otherwise specifically stated or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are used in a broad sense, and for example, "connected" may be a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements.
Referring to fig. 1-3, a method for optimally designing a sole with a regular polyhedron porous heel region filling structure comprises the following steps:
step S1, establishing a sole model;
step S2, selecting a sole heel area as a sole optimization design area, respectively establishing three different regular polyhedron porous structure models in the sole heel area, and obtaining sole models M1, M2 and M3 of three regular polyhedron porous filling structures in the sole heel area, wherein the steps specifically comprise:
step S21: setting a sole heel area in UG;
step S22: constructing a regular tetrahedron model with side length a1, arraying the regular tetrahedron model according to the distance d1, and performing Boolean subtraction operation on the regular tetrahedron model and a heel area of the sole to obtain a sole model M1 of a regular tetrahedron porous filling structure in the heel area;
step S23: constructing a regular hexahedron model with the side length of a2, arraying the regular hexahedron model according to the distance d2, and performing Boolean subtraction operation on the regular hexahedron model and the heel area of the sole to obtain a sole model M2 with a regular hexahedron porous filling structure in the heel area;
step S24: constructing a regular octahedron model with the side length of a3, carrying out array on the regular octahedron model according to the distance d3, and carrying out Boolean subtraction operation on the regular octahedron model and the heel area of the sole to obtain a sole model M3 with a regular octahedron porous filling structure in the heel area.
Step S3, setting different parameters for the porous structures in the three types of porous filling structure sole models respectively, so as to obtain three sets of regular polyhedron porous filling structure sole models with different porosities and the same pore type in the heel region, specifically including:
step S31: respectively formulating the combination of a plurality of groups of regular polyhedron side lengths a and array intervals d;
step S32: repeating the step S22, and calculating the porosity of the heel area to obtain a plurality of sole models with different porosities and regular tetrahedron porous filling structures in the heel area;
step S33: repeating the step S23, and calculating the porosity of the heel area to obtain a plurality of sole models with different porosities and adopting the hexahedral porous filling structure in the heel area;
step S34: and (5) repeatedly executing the step S24, and calculating the porosity of the heel area to obtain a plurality of sole models with different porosities and the octahedral porous filling structures of the heel area.
Step S4: a foot finite element model containing bones, soft tissues and tendon keys is constructed in ABAQUS, and is assembled with three groups of sole models with the regular polyhedron porous filling structure in the heel area with different porosities and the same pore type to obtain a plurality of groups of three-dimensional models of the foot-sole system with the sole with the porous filling structure with different porosities and the same pore type, which specifically comprises the following steps:
step S41: acquiring CT scanning data of the foot by utilizing a CT scanning technology;
step S42: importing foot CT scanning data into medical software MIMICS, and establishing a rough foot solid 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 finally, assembling the complete foot model with a plurality of groups of sole models with the same porosity and the same pore type and adopting a regular polyhedron porous filling structure in the heel region to form a three-dimensional foot-sole system model with a plurality of groups of soles with the same pore type and different porosities.
Step S5: introducing a plurality of groups of foot-sole system three-dimensional models of soles with different porosities and the same pore type and with porous filling structures into ABAQUS, carrying out grid division and boundary condition setting, and carrying out kinetic analysis to obtain the stress, displacement and strain energy of the soles; the method specifically comprises the following steps:
step S51: in the three-dimensional foot-sole system model ABAQUS of the porous filling structure sole with different porosities and the same pore type, the material attribute assignment, meshing and contact setting are carried out 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. The soft tissue and the sole are in surface-to-surface contact, and the friction coefficient is 0.6; the calcaneus and soft tissue are placed in Tie contact.
Step S52: setting boundary conditions and load application of a system model, simulating a motion process of a foot-sole system, 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 finite element model.
Step S53: and after the analysis is finished, obtaining the maximum strain energy, the maximum stress and the maximum displacement data of the sole.
Step S6: the maximum strain energy, the maximum stress, the maximum displacement and other data of the sole with the porous filling structure with different porosities and different porous structure types are compared to obtain the optimal optimized structure of the sole with the porous filling structure, and the method specifically comprises the following steps:
step S61: respectively comparing the maximum strain energy, the maximum stress and the maximum displacement of the soles with different porosities and the same porous structure type to obtain the optimal structures of the soles with different porosity porous structure types;
step S62: comparing the maximum strain energy, the maximum stress and the maximum displacement of the optimal structure of the shoe sole with different porous structure types and different porosity porous structure types in the step S61 to obtain the optimal structure of the shoe sole with the porous filling structure, namely, the shoe sole model with the regular tetrahedral porous filling structure and the porosity of 1.2%, as shown in FIG. 2.
In this embodiment, three sole models with a heel region regular polyhedron porous filling structure are taken as an example, and as a simple replacement of this embodiment, the number of the sole models with the heel region regular polyhedron porous filling structure can also be four or more, and only needs to be simply increased on the basis of this embodiment.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (8)
1. A method for optimally designing a sole with a regular polyhedron porous heel area filling structure is characterized by comprising the following steps:
step S1, establishing a sole model;
step S2, selecting a sole heel area as a sole optimization design area, and respectively establishing a plurality of different regular polyhedron porous structure models in the sole heel area to obtain sole models with a plurality of regular polyhedron porous filling structures in the sole heel area;
step S3, respectively setting different parameters for the porous structures in the sole models with the multiple kinds of heel area regular polyhedron porous filling structures, so as to obtain multiple groups of sole models with the heel area regular polyhedron porous filling structures with different porosities and the same pore type;
step S4, establishing a foot finite element model containing bones, soft tissues and tendon keys, assembling the foot finite element model with a plurality of groups of sole models with the same pore type and the same porosity and the same pore type of the regular polyhedron porous filling structure, and respectively obtaining a plurality of groups of three-dimensional models of the foot-sole system with the same pore type and the different porosity;
step S5, importing a plurality of groups of foot-sole system three-dimensional models of soles with porous filling structures with different porosities and the same pore type into ABAQUS, carrying out grid division and boundary condition setting, and carrying out kinetic analysis to obtain the stress, displacement and strain energy of the soles;
and step S6, comparing the data of maximum strain energy, maximum stress, maximum displacement and the like of the soles with the porous filling structures with different porosities and different porous structure types to obtain the optimal optimized structure of the soles with the porous filling structures.
2. The method according to claim 1, wherein the step S2 specifically includes:
step S21: setting a sole heel area in UG;
step S22: selecting a sole heel area as a porous structure filling area, and establishing a plurality of regular polyhedron array filling models in the area to obtain sole models with various porous heel area filling structures;
the establishment rule of the plurality of regular polyhedron array filling models in the heel area is that a regular polyhedron model with the side length of a is arrayed at a distance d to obtain a plurality of regular polyhedron porous heel area filling structure sole models; the side lengths of the regular polyhedrons in the sole model with the filling structure of the plurality of regular polyhedron porous heel areas are different.
3. The method according to claim 1, wherein the step S3 specifically includes:
step S31: respectively formulating the combination of a plurality of groups of regular polyhedron side lengths a and array intervals d;
step S32: and (3) repeating the step (2) to ensure that each sole model with the heel area regular polyhedron porous filling structure has a group of sole models with different porosities and the same pore type and with the heel area regular polyhedron porous filling structure.
4. The method according to claim 1, wherein the step S4 specifically includes:
step S41: acquiring CT scanning data of the foot by utilizing a CT scanning technology;
step S42: importing foot CT scanning data into medical software MIMICS, and establishing a rough foot solid 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 finally, assembling the complete foot model with a plurality of groups of sole models with the same porosity and the same pore type and adopting a regular polyhedron porous filling structure in the heel region to form a three-dimensional foot-sole system model with a plurality of groups of soles with the same pore type and different porosities.
5. The method according to claim 1, wherein the step S5 specifically includes:
step S51: importing the three-dimensional foot-sole system model of the porous filling structure sole with different porosities and the same pore type in the step S4 into ABAQUS, and performing material attribute assignment, meshing and contact setting in the ABAQUS;
step S52: setting boundary conditions and load application of a system model, simulating a motion process of a foot-sole system, and performing dynamic analysis;
step S53: and after the analysis is finished, obtaining the maximum strain energy, the maximum stress and the maximum displacement data of the sole.
6. The method according to claim 1, wherein the step S6 specifically includes:
step S61: respectively comparing the maximum strain energy, the maximum stress and the maximum displacement of the soles with different porosities and the same porous structure type to obtain the optimal structures of the soles with different porosity porous structure types;
step S62: and (4) comparing the maximum strain energy, the maximum stress and the maximum displacement of the optimal structure of the shoe sole with different porous structure types and different porosity porous structure types in the step (S61) to obtain the optimal structure of the shoe sole with the porous filling structure.
7. A regular polyhedron porous heel area filling structure sole is characterized by comprising: a sole body; the sole body is filled with the hollow regular polyhedron of array setting in sole heel region.
8. A regular polyhedron porous heel area filling structure sole as claimed in claim 7, wherein: the porosity of the regular polyhedron array is 1.2%, and the regular polyhedron is a regular tetrahedron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011052541.0A CN112199790B (en) | 2020-09-29 | Regular polyhedron porous heel area filling structure sole and design method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011052541.0A CN112199790B (en) | 2020-09-29 | Regular polyhedron porous heel area filling structure sole and design method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112199790A true CN112199790A (en) | 2021-01-08 |
| CN112199790B CN112199790B (en) | 2024-06-07 |
Family
ID=
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113821958A (en) * | 2021-09-28 | 2021-12-21 | 华侨大学 | Optimized design method for buffering multi-cellular sole structure |
| CN113987857A (en) * | 2021-09-28 | 2022-01-28 | 华侨大学 | Optimization design method for three-layer uniform medium laminated sole structure |
| CN114330040A (en) * | 2021-09-28 | 2022-04-12 | 华侨大学 | Sole vibration transmission characteristic analysis method |
| US11514349B1 (en) * | 2020-06-15 | 2022-11-29 | Topia Limited | Apparatus and methods of unsupervised machine learning models to identify seasonality and predicting seasonally-influenced metric values |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202635775U (en) * | 2012-06-19 | 2013-01-02 | 双驰实业股份有限公司 | Heel buffering sole |
| US20140025181A1 (en) * | 2012-07-20 | 2014-01-23 | Tom Vanasse | Metallic structures having porous regions from imaged bone at pre-defined anatomic locations |
| CN105956349A (en) * | 2016-07-04 | 2016-09-21 | 上海理工大学 | Insole production system based on finite element mechanical analysis |
| CN106372374A (en) * | 2016-11-03 | 2017-02-01 | 西安交通大学 | Individualized design method for diabetic foot shoe pad |
| CN107607452A (en) * | 2017-08-18 | 2018-01-19 | 华南理工大学 | A kind of method that porous prosthese porosity is determined by stress distribution |
| CN110721014A (en) * | 2019-09-28 | 2020-01-24 | 西安交通大学 | Personalized occupation insole and preparation method thereof |
| CN210492853U (en) * | 2019-08-01 | 2020-05-12 | 先临三维科技股份有限公司 | Shoe sole |
| CN111274702A (en) * | 2020-01-20 | 2020-06-12 | 华侨大学 | Design method of sole model with buffer structure in sole heel area |
| CN212782026U (en) * | 2020-09-29 | 2021-03-23 | 华侨大学 | Sole with spherical porous heel area filling structure |
| CN213582170U (en) * | 2020-09-29 | 2021-06-29 | 华侨大学 | Sole with regular polyhedron porous heel area filling structure |
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202635775U (en) * | 2012-06-19 | 2013-01-02 | 双驰实业股份有限公司 | Heel buffering sole |
| US20140025181A1 (en) * | 2012-07-20 | 2014-01-23 | Tom Vanasse | Metallic structures having porous regions from imaged bone at pre-defined anatomic locations |
| CN105956349A (en) * | 2016-07-04 | 2016-09-21 | 上海理工大学 | Insole production system based on finite element mechanical analysis |
| CN106372374A (en) * | 2016-11-03 | 2017-02-01 | 西安交通大学 | Individualized design method for diabetic foot shoe pad |
| CN107607452A (en) * | 2017-08-18 | 2018-01-19 | 华南理工大学 | A kind of method that porous prosthese porosity is determined by stress distribution |
| CN210492853U (en) * | 2019-08-01 | 2020-05-12 | 先临三维科技股份有限公司 | Shoe sole |
| CN110721014A (en) * | 2019-09-28 | 2020-01-24 | 西安交通大学 | Personalized occupation insole and preparation method thereof |
| CN111274702A (en) * | 2020-01-20 | 2020-06-12 | 华侨大学 | Design method of sole model with buffer structure in sole heel area |
| CN212782026U (en) * | 2020-09-29 | 2021-03-23 | 华侨大学 | Sole with spherical porous heel area filling structure |
| CN213582170U (en) * | 2020-09-29 | 2021-06-29 | 华侨大学 | Sole with regular polyhedron porous heel area filling structure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11514349B1 (en) * | 2020-06-15 | 2022-11-29 | Topia Limited | Apparatus and methods of unsupervised machine learning models to identify seasonality and predicting seasonally-influenced metric values |
| CN113821958A (en) * | 2021-09-28 | 2021-12-21 | 华侨大学 | Optimized design method for buffering multi-cellular sole structure |
| CN113987857A (en) * | 2021-09-28 | 2022-01-28 | 华侨大学 | Optimization design method for three-layer uniform medium laminated sole structure |
| CN114330040A (en) * | 2021-09-28 | 2022-04-12 | 华侨大学 | Sole vibration transmission characteristic analysis method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112075990A (en) | Calcaneus prosthesis with spherical porous filling structure and optimal design method thereof | |
| CN105499575A (en) | Design and manufacturing method of porous grid structure material | |
| EP3558046B1 (en) | Cushioning structures of an article of footwear for a human or animal body | |
| CN109094029B (en) | Three-dimensional printing biomedical insole and printing method | |
| CN112075989A (en) | Regular polyhedron porous filling structure calcaneus prosthesis and optimal design method thereof | |
| ES2578730B1 (en) | Sole for footwear with a porous padding and manufacturing process for said padding | |
| Shimada et al. | Quadrilateral Meshing with Directionality Control through the Packing of Square Cells. | |
| CN106777584B (en) | A kind of analogue system for simulating fracture healing process | |
| CN106863785B (en) | The preparation method and device of bone model | |
| CN113821958A (en) | Optimized design method for buffering multi-cellular sole structure | |
| CN106626350A (en) | Pressure reduction and protection insoles applying to high-risk diabetic foot groups and manufacturing method thereof | |
| CN213582170U (en) | Sole with regular polyhedron porous heel area filling structure | |
| WO2019086546A1 (en) | Damping element and method for modeling the same | |
| CN113987857A (en) | Optimization design method for three-layer uniform medium laminated sole structure | |
| WO2021088099A1 (en) | Total matrix computation-based discrete element neighbor search and solution finding method and system | |
| CN112199790A (en) | Sole with regular polyhedron porous heel area filling structure and design method thereof | |
| CN112199790B (en) | Regular polyhedron porous heel area filling structure sole and design method thereof | |
| CN212782026U (en) | Sole with spherical porous heel area filling structure | |
| CN213075904U (en) | Calcaneus prosthesis with spherical porous filling structure | |
| CN215739415U (en) | Regular polyhedron porous filling structure calcaneus prosthesis | |
| CN112084606B (en) | Ball porous heel area filling structure sole and optimal design method thereof | |
| CN115944144A (en) | 3D printing insole with gradually-changed and connected arch partition structures and design and manufacturing method | |
| CN112084606A (en) | Sole with spherical porous heel area filling structure and optimal design method thereof | |
| Witzel et al. | Finite element analyses and virtual syntheses of biological structures and their application to sauropod skulls | |
| CN107909653A (en) | A kind of heart soft tissue three-dimensional rebuilding method based on sparse principal component analysis |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |