CN107085659A - A kind of preparation method of the soft and hard alternation pattern biomimetic material based on frictional behaviour - Google Patents
A kind of preparation method of the soft and hard alternation pattern biomimetic material based on frictional behaviour Download PDFInfo
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Abstract
The invention belongs to biomimetic material field, the preparation method of specifically a kind of soft and hard alternation pattern biomimetic material based on frictional behaviour.This method comprises the following steps：Step 1: determining the proportioning of two kinds of different materials of modulus of elasticity；Step 2: determining the basic body size of the big material of modulus of elasticity；Step 3: preparing soft and hard alternation biomimetic material using the method for Laser Processing, 3D printing, physical blending according to the proportioning of the step one two kind materials different with the modulus of elasticity that step 2 is drawn and basic body size.Soft and hard alternation pattern biomimetic material method prepared by the present invention is simple, there are outstanding anti-wear performance, tensile property, shock resistance, wherein using the soil animal such as dung beetle, earthworm body surface as prototype, surface distributed has the biomimetic material of the bionic coupling cell cube of certain rule, it is demonstrated by outstanding drag reduction, antiwear characteristic, and for engineering in practice, achieve preferable economic benefit and social benefit.
Description
Technical field
The invention belongs to biomimetic material field, specifically a kind of bionical material of soft and hard alternation pattern based on frictional behaviour
The preparation method of material.
Background technology
Nature biotechnology constantly adapts to environment to meet survivability requirement in the coevolution of 1 years, its structure and
Function has reached the degree of almost Perfect.Body surface is the vitals of biological and extraneous positive energy exchange and material, is protected simultaneously
The biological infringement from external environment condition.Organism constantly adjusts body surface form according to local environment in evolution, has brought up each
The soft and hard alternation pattern and structure of various kinds are planted, excellent drag reduction, antiwear characteristic is had been assigned.Natural biologic material, such as bamboo wood, tide
Between the tribological property with shellfish and snake gastrostege etc. far beyond people the imagination.
Soft and hard alternation pattern biomimetic material is one by prototype of organism characteristic by two kinds of different materials of modulus of elasticity
Under fixed proportioning it is orderly or disorderly arranged formed by material, by imitate the pattern of natural biologic material, structure, material mixture ratio,
The factors such as size, the regularity of distribution carry out Bionic Design.Using laser, 3D printing, physical blending method, prepared in die surface
Soft and hard alternation biomimetic features with certain regularity of distribution, can be effectively reduced the adhesion between mould and casting, and have concurrently
The characteristics such as wear-resisting, thermal fatigue resistance, achieve preferable economic benefit and social benefit, meanwhile, using laser processing technology in material
Expect the bionical pattern of Surface Machining soft and hard alternation, improve obdurability, wearability, lubricity of material etc..We define springform
The small material of amount is soft material, and the big material of modulus of elasticity is hard material, and the design of soft and hard alternation pattern biomimetic material is related to multiple
In terms of aspect, soft or hard material properties, " soft-hard " interphase structure form, soft or hard material mixture ratio, soft or hard material basic size
Difference can influence the frictional properties of soft and hard alternation pattern biomimetic material, and rational design is to ensure the bionical material of soft and hard alternation pattern
Basis of the material with individual features.
In modern industry, rubbing has dual character, existing harmful one side, again beneficial one side.It has been generally acknowledged that friction
It is harmful, because friction is inevitable with abrasion, the failure 60% of production equipment is that caused by abrasion, and friction can be consumed
Substantial amounts of energy, 1/2-the 1/3 of world energy sources is due to that friction is slatterned.But also beneficial one side is rubbed, in engineering
There is many examples serviced using friction, increase friction for the mankind, such as frictional drive, braking valve, clutch, the drive of vehicle
Driving wheel, bolt and nut etc..Therefore, the coefficient of friction of engineering rational designing material in practice is most important.Therefore, according to required
Coefficient of friction prepare soft and hard alternation pattern biomimetic material be also be worth research.
The content of the invention
The invention provides a kind of preparation method of the soft and hard alternation pattern biomimetic material based on frictional behaviour, pass through design
The soft material of two kinds of dual extension-compression modulus and the proportioning and its different surfaces form of hard material, the soft and hard alternation pattern manufactured
Biomimetic material shows controllable frictional behaviour, solves the sky that soft and hard alternation new look biomimetic material is designed on existing market
In vain.
Technical solution of the present invention is described with reference to the drawings as follows：
A kind of preparation method of the soft and hard alternation pattern biomimetic material based on frictional behaviour, this method comprises the following steps：
Step 1: determining the proportioning of two kinds of different materials of modulus of elasticity；It is soft material to define the small material of modulus of elasticity,
The big material of modulus of elasticity is hard material；According to the material properties of desired soft and hard alternation pattern biomimetic material and required friction
Coefficient, the proportioning of soft or hard material can be calculated according to below equation：
Wherein, c% is the percent by volume of soft material；F is the coefficient of friction of soft and hard alternation biomimetic material；In certain operating mode
Under, fsFor the coefficient of friction of soft material, EsFor the modulus of elasticity of soft material；fhFor the coefficient of friction of hard material；EhFor hard material
Modulus of elasticity；
Step 2: determining the basic body size of the big material of modulus of elasticity；According to the desired bionical material of soft and hard alternation pattern
Material concrete form and surface appearance and size can be drawn；
Step 3: according to the proportioning and basic body chi of the step one two kind materials different with the modulus of elasticity that step 2 is drawn
It is very little to use Laser Processing, 3D printing, the method for physical blending with preparing soft and hard alternation under step one identical working condition
Biomimetic material.
The material that the modulus of elasticity of desired soft and hard alternation pattern biomimetic material described in step 2 is big arranges for point-like,
A series of big material (hard material) of the modulus of elasticity of point-like is uniform-distribution with the small material of modulus of elasticity (soft material),
It is a to define the lateral separation between hard material1, fore-and-aft distance is b1, rule of thumb a1With b1Scope between 1-2mm.Point-like
Hard material radius r computational methods are comprised the steps of：
21) relation between the proportioning of soft or hard scantling and two kinds of materials is determined.The surface area of material in regional area
For a1b1, the surface area of soft material is a1b1-πr2.The soft material percentage determined according to above formula, has：
22) radius of hard material basic body is calculated.The radius of hard material basic body is expressed as：
Desired soft and hard alternation pattern biomimetic material described in step 2 arranges for soft and hard alternation striated, fringe spacing
For a2, rule of thumb a2Scope between 1-2mm.The width of fringe b of strip hard material2Computational methods comprise the steps of：
31) relation between the proportioning of soft or hard scantling and two kinds of materials is determined.According to the relation of surface appearance and size,
Soft material percentage is determined, is had：
32) width of hard material basic body is calculated.Can be by the width means of hard material basic body：
b2=a2- c%*a2
The hard material of desired soft and hard alternation pattern biomimetic material described in step 2 is latticed array, grid spacing
For a3, rule of thumb a3Scope between 1-2mm.The b of the mesh width of hard material3Computational methods are comprised the steps of：
41) relation between the proportioning of soft or hard scantling and two kinds of materials is determined.According to the relation of surface appearance and size,
Soft material percentage is determined, is had：
42) width of hard material basic body is calculated.Can be by the width means of hard material basic body：
b3=a3-sqrt(a3*a3-0.8462a3*a3)
Two kinds of different materials of described modulus of elasticity are all high polymer material or metal material.
Beneficial effects of the present invention are：Soft and hard alternation pattern biomimetic material method prepared by the present invention is simple.Wherein with Qiang
The soil animal such as dung beetle, earthworm body surface is prototype, and surface distributed has the biomimetic material of the bionic coupling cell cube of certain rule, is showed
Controllable frictional behaviour, and for engineering in practice, achieve preferable economic benefit and social benefit.
Brief description of the drawings
Fig. 1 a are a kind of schematic surface of soft and hard alternation pattern biomimetic material；
Fig. 1 b are the schematic surface of another soft and hard alternation pattern biomimetic material；
Fig. 1 c are the schematic surface of the third soft and hard alternation pattern biomimetic material；
Fig. 2 is the microcosmic uneven schematic surface of soft and hard alternation pattern biomimetic material；
Fig. 3 is that soft and hard alternation pattern biomimetic material friction pair in friction process contacts situation schematic diagram；
Fig. 4 is soft and hard alternation structural interaction schematic diagram；
Fig. 5 is a kind of basic size schematic diagram of soft and hard alternation pattern biomimetic material；
Fig. 6 is the basic size schematic diagram of another soft and hard alternation pattern biomimetic material；
Fig. 7 is the schematic surface of the third soft and hard alternation pattern biomimetic material.
Embodiment
The soft and hard alternation pattern biomimetic material that the present invention is referred to refers to two kinds of different materials of modulus of elasticity, defines springform
The small material of amount is soft material, and the big material of modulus of elasticity is hard material.
It is several frequently seen soft and hard alternation pattern biomimetic material refering to Fig. 1 a-Fig. 1 c, Fig. 1 a-Fig. 1 c.The present invention relates to
Soft and hard alternation pattern biomimetic material surface be macroscopically smooth bionic surface.Refering to Fig. 2, soft and hard alternation pattern biomimetic material
Microcosmic surface be rough.Refering to Fig. 3, when the mutual stand under load contact in two soft and hard alternation pattern biomimetic material surfaces,
Only come in contact on the top of a small number of micro-bulges, because real contact area is minimum, the contact on micro-bulge greatly, is being carried
Adhesion is produced at the lower contact peak dot of the factors such as lotus, transient temperature effect, hereafter, the stress of contact point no longer changes, and can only rely on
Expand contact area to bear to continue increased load.In friction process, sticky point is sheared and produced under tangential force effect
Raw to slide, shear force is exactly sticking friction power, in the case of most of dry friction, and sticking friction power can be regarded as always rubbing
Wipe power.Refering to Fig. 4, soft and hard alternation material has " soft-hard " interphase structure, the phase of soft material and hard material in friction process
Mutually influence makes its friction process want many of complexity compared with homogenous material.The soft material or hard material of one-component are acted in same load
Under, the real contact area of soft material is significantly larger than the real contact area of hard material.But for soft and hard alternation biomimetic material,
Due to the synergy of soft or hard material, the real contact area of soft material and hard material can be affected.
Based on above-mentioned sticking friction mechanism, the coefficient of friction needed for a kind of basis of present invention offer is prepared corresponding soft or hard
The new method of alternate pattern biomimetic material, specific method is as follows：
Step 1: determining the proportioning of two kinds of different materials of modulus of elasticity；It is soft material to define the small material of modulus of elasticity,
The big material of modulus of elasticity is hard material；Soft and hard alternation material has " soft-hard " interphase structure, the soft material in friction process
Its friction process is set to want many of complexity compared with homogenous material with influencing each other for hard material.The soft material or hard material of one-component exist
Under same load effect, the real contact area of soft material is significantly larger than the real contact area of hard material.But for soft or hard
Alternate biomimetic material, in the generation stage of adhesion, due to the soft and hard alternation design feature of soft and hard alternation biomimetic material, soft or hard material
Relative compression amount must be consistent, therefore the real contact area of soft or hard material can be changed, further result in the weight of load
New distribution.Soft and hard alternation biomimetic material feature can pass through elastic modulus Es(soft material modulus of elasticity) and Eh(hard material springform
Amount) two parameters represent.For analysing elastic modulus EsAnd EhInfluence to friction process, it can be assumed that the volume hundred of soft material
Divide than being c%, the percent by volume of hard material is 1-c%.Due to the synergy of soft or hard material, the reality of soft material and hard material
Border contact area can be affected, according to statistical method, can be expressed as：
Wherein, A is total contact area, As、AhFor soft material, the respective real contact area of hard material.
According to sticking friction mechanism, normal direction full payload (W) can be expressed as：
W=Ws+Wh=c%AEsε+(1-c%) AEhε
Wherein, ε is the mean strain on sticky point, WsFor soft material normal load, WhFor hard material normal load；
Tangential force is applied to the upper surface for the stand under load that contacts with each other, when tangential force is sufficiently large, sticky point is cut, upper following table
Face produces relative slip, and tangential forces now are exactly sticking friction power.For soft and hard alternation biomimetic material, cut in sticky point
The stage is cut, because the condition that soft, hard material adhesion situation is different and soft, hard material is cut by tangential force is different, will can be rubbed
Power is expressed as：
F=Asτs+Ahτh=c%A τs+ (1-c%) A τh
Wherein, τs、τhRespectively soft, hard material the shearing limit.
The coefficient of friction f of soft and hard alternation biomimetic material is can obtain according to coulomb law of friction：
Wherein, fsFor the coefficient of friction of soft material, fhFor the coefficient of friction of hard material.
According to the material properties of soft and hard alternation pattern biomimetic material and required coefficient of friction and known soft, hard material
Coefficient of friction, the proportioning of soft or hard material can be calculated according to below equation：
Wherein, c% is the percent by volume of soft material；F is the coefficient of friction of soft and hard alternation biomimetic material；fsFor soft material
Coefficient of friction, fhFor the coefficient of friction of hard material；EsFor the modulus of elasticity of soft material；EhFor the modulus of elasticity of hard material；
Step 2: determining hard material basic body size.According to desired soft and hard alternation pattern biomimetic material concrete form and
Surface appearance and size can be drawn；
Step 3: according to the proportioning and basic body chi of the step one two kind materials different with the modulus of elasticity that step 2 is drawn
It is very little using Laser Processing, 3D printing, that the other method such as physical blending can prepare soft and hard alternation under identical working condition is imitative
Green material.
The material that the modulus of elasticity of desired soft and hard alternation pattern biomimetic material described in step 2 is big arranges for point-like,
The lateral separation for defining the big material of modulus of elasticity is a1, fore-and-aft distance is b1, rule of thumb a1With b1Scope 1-2mm it
Between.The computational methods of the basic body size of the big material of modulus of elasticity are comprised the steps of：
21) relation between the proportioning of soft or hard scantling and two kinds of materials is determined.Soft or hard phase as shown in Fig. 1 a, Fig. 5
Between pattern biomimetic material surface texture (in figure hard material be black circular), it can be seen that its structure is the folded of dashed box inner structure
Plus, according to the relation of dashed box inner structure size, the surface area of material is a1b1, the surface area of soft material is a1b1-πr2.According to upper
The soft material percentage that formula is determined, has：
22) radius of hard material basic body is calculated.The radius of hard material basic body is expressed as：
The material that the modulus of elasticity of desired soft and hard alternation pattern biomimetic material described in step 2 is big is arranged for striated
Row, definition fringe spacing is a2, rule of thumb a2Scope between 1-2mm.The basic body size of the big material of modulus of elasticity
Computational methods are comprised the steps of：
31) relation between the proportioning of soft or hard scantling and two kinds of materials is determined.Soft or hard phase as shown in Fig. 1 b, Fig. 6
Between pattern biomimetic material surface texture (in figure hard material be black bar shaped), according to the relation of surface appearance and size, determine softwood
Expect percentage, have：
32) width of hard material basic body is calculated.Can be by the width means of hard material basic body：
b2=a2- c%*a2
The material that the modulus of elasticity of desired soft and hard alternation pattern biomimetic material described in step 2 is big is latticed row
Row, definition fringe spacing is a3, rule of thumb a3Scope between 1-2mm.The basic body size of the big material of modulus of elasticity
Computational methods are comprised the steps of：
41) relation between the proportioning of soft or hard scantling and two kinds of materials is determined.Soft or hard phase as shown in Fig. 1 c, Fig. 7
Between pattern biomimetic material surface texture (in figure hard material be black bar shaped), according to the relation of surface appearance and size, determine softwood
Expect percentage, have：
42) width of hard material basic body is calculated.Can be by the width means of hard material basic body：
b3=a3-sqrt(a3*a3-0.8462a3*a3)
Embodiment one
The modulus of elasticity of known soft material is 160Mpa, and coefficient of friction 0.2, hard material modulus of elasticity is 1200Mpa, friction
Coefficient 0.1, from the soft and hard alternation pattern biomimetic material as shown in Fig. 1 a, Fig. 5, if expectation prepare coefficient of friction for 0.15 it is soft
Hard alternate pattern biomimetic material, specific preparation method is as follows：
Step 1: determining soft or hard material mixture ratio.According to the demand of specific property of material friction, i.e. soft and hard alternation pattern biomimetic material
The suitable soft or hard material of coefficient of friction f selections proportioning.The proportioning of soft or hard material can be calculated according to below equation：
Wherein, c% is the percent by volume of soft material, and f is the coefficient of friction of soft and hard alternation pattern biomimetic material, fsTo be soft
The coefficient of friction of material, fhFor the coefficient of friction of hard material, EsFor the modulus of elasticity of soft material, EhFor the modulus of elasticity of hard material.
According to the characteristics of soft and hard alternation pattern biomimetic material, f sizes should be between fsWith fhBetween.
Bring design parameter into above formula, the percentage of soft material can be obtained：
Step 2：Determine hard material basic body size (hard material is that black is circular in figure).It is soft as shown in Fig. 1 a, Fig. 5
Hard alternate pattern biomimetic material surface texture, it can be seen that its structure is the superposition of dashed box inner structure, according to dashed box inner structure chi
Very little relation, the surface area of material is a1b1, the surface area of soft material is a1b1-πr2.The soft material percentage determined according to above formula
Than having：
The radius of hard material basic body can be expressed as：
Step 3: being obtained using 3D printing method with preparation process one, step 2 under step one identical working condition
Soft and hard alternation biomimetic material.
Embodiment two
The modulus of elasticity 180Mpa of known soft material, coefficient of friction 0.21, hard material modulus of elasticity 1000Mpa, friction system
Number 0.11, from the soft and hard alternation pattern biomimetic material as shown in Fig. 1 b, Fig. 6, if expectation prepare coefficient of friction for 0.14 it is soft
Hard alternate pattern biomimetic material, specific preparation method is as follows：
Step one：Determine soft or hard material mixture ratio.According to the demand of specific property of material friction, i.e. soft and hard alternation pattern biomimetic material
The suitable soft or hard material of coefficient of friction f selections proportioning.The proportioning of soft or hard material can be calculated according to below equation：
Wherein, c% is the percent by volume of soft material, and f is the coefficient of friction of soft and hard alternation pattern biomimetic material, fsTo be soft
The coefficient of friction of material, fhFor the coefficient of friction of hard material, EsFor the modulus of elasticity of soft material, EhFor the modulus of elasticity of hard material.
According to the characteristics of soft and hard alternation pattern biomimetic material, f sizes should be between fsWith fhBetween.
Bring design parameter into above formula, the percentage of soft material can be obtained：
Step 2：Determine hard material basic body size (hard material is black bar shaped in figure).It is soft as shown in Fig. 1 b, Fig. 6
Hard alternate pattern biomimetic material surface texture, according to the relation of surface appearance and size, determines soft material percentage, has：
Can be by the width means of hard material basic body：
b2=a2-0.7042a2=0.2958a2
Step 3：Obtained using laser processing with preparation process one, step 2 under step one identical working condition
The soft and hard alternation biomimetic material arrived.
Embodiment three
The modulus of elasticity 150Mpa of known soft material, coefficient of friction 0.19, hard material modulus of elasticity 1100Mpa, friction system
Number 0.12, from the soft and hard alternation pattern biomimetic material as shown in Fig. 1 c, Fig. 7, if expectation prepare coefficient of friction for 0.16 it is soft
Hard alternate pattern biomimetic material, specific preparation method is as follows：
Step one：Determine soft or hard material mixture ratio.According to the demand of specific property of material friction, i.e. soft and hard alternation pattern biomimetic material
The suitable soft or hard material of coefficient of friction f selections proportioning.The proportioning of soft or hard material can be calculated according to below equation：
Wherein, c% is the percent by volume of soft material, and f is the coefficient of friction of soft and hard alternation pattern biomimetic material, fsTo be soft
The coefficient of friction of material, fhFor the coefficient of friction of hard material, EsFor the modulus of elasticity of soft material, EhFor the modulus of elasticity of hard material.
According to the characteristics of soft and hard alternation pattern biomimetic material, f sizes should be between fsWith fhBetween.
Bring design parameter into above formula, the percentage of soft material can be obtained：
Step 2：Determine hard material basic body size (hard material is black bar shaped in figure).It is soft as shown in Fig. 1 c, Fig. 7
Hard alternate pattern biomimetic material surface texture, according to the relation of surface appearance and size, determines soft material percentage, has：
Can be by the width means of hard material basic body：
b3=a3-sqrt(a3*a3-0.8462a3*a3)
Step 3：Obtained using laser processing with preparation process one, step 2 under step one identical working condition
The soft and hard alternation biomimetic material arrived.
The soft and hard alternation pattern biomimetic material method of above-mentioned preparation is simple, and shows outstanding anti-wear performance, drawing
Performance, shock resistance are stretched, wherein using the soil animal such as dung beetle, earthworm body surface as prototype, surface distributed has the imitative of certain rule
The biomimetic material of raw coupling unit body, is demonstrated by outstanding drag reduction, antiwear characteristic, and for engineering in practice, achieves preferably
Economic benefit and social benefit.
Claims (5)
1. a kind of preparation method of the soft and hard alternation pattern biomimetic material based on frictional behaviour, it is characterised in that this method includes
Following steps：
Step 1: determining the proportioning of two kinds of different materials of modulus of elasticity；It is soft material, elasticity to define the small material of modulus of elasticity
The big material of modulus is hard material；According to the material properties of desired soft and hard alternation pattern biomimetic material and required friction system
Number, the proportioning of soft or hard material can be calculated according to below equation：
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Wherein, c% is the percent by volume of soft material；F is the coefficient of friction of soft and hard alternation biomimetic material；fsFor rubbing for soft material
Wipe coefficient, fhFor the coefficient of friction of hard material；EsFor the modulus of elasticity of soft material；EhFor the modulus of elasticity of hard material；
Step 2: determining the basic body size of the big material of modulus of elasticity；Had according to desired soft and hard alternation pattern biomimetic material
Body form and surface appearance and size can be drawn；
Step 3: being adopted according to the proportioning and basic body size of the step one two kind materials different with the modulus of elasticity that step 2 is drawn
Soft and hard alternation biomimetic material is prepared with the method for Laser Processing, 3D printing, physical blending.
2. a kind of preparation method of soft and hard alternation pattern biomimetic material based on frictional behaviour according to claim 1, its
It is characterised by, the material that the modulus of elasticity of the desired soft and hard alternation pattern biomimetic material described in step 2 is big is arranged for point-like
Row, i.e., be uniform-distribution with a series of big hard material of the modulus of elasticity of point-like on the small soft material of modulus of elasticity, defines hard material
Lateral separation between material is a1, fore-and-aft distance is b1, rule of thumb a1With b1Scope between 1-2mm, point-like hard material half
Footpath r computational methods are comprised the steps of：
21) relation between the proportioning of soft or hard scantling and two kinds of materials is determined；The surface area of material is in regional area
a1b1, the surface area of soft material is a1b1-πr2.The soft material percentage determined according to above formula, has：
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<mi>%</mi>
</mrow>
22) radius of hard material basic body is calculated；The radius of hard material basic body is expressed as：
<mrow>
<mi>r</mi>
<mo>=</mo>
<msqrt>
<mfrac>
<mrow>
<msub>
<mi>a</mi>
<mn>1</mn>
</msub>
<msub>
<mi>b</mi>
<mn>1</mn>
</msub>
<mo>-</mo>
<mi>c</mi>
<mi>%</mi>
<mo>*</mo>
<msub>
<mi>a</mi>
<mn>1</mn>
</msub>
<msub>
<mi>b</mi>
<mn>1</mn>
</msub>
</mrow>
<mi>&pi;</mi>
</mfrac>
</msqrt>
</mrow>
3. a kind of preparation method of soft and hard alternation pattern biomimetic material based on frictional behaviour according to claim 1, its
It is characterised by, the desired soft and hard alternation pattern biomimetic material described in step 2 arranges for soft and hard alternation striated, between striped
Away from for a2, rule of thumb a2Scope between 1-2mm, the width of fringe b of strip hard material2Computational methods include following step
Suddenly：
31) relation between the proportioning of soft or hard scantling and two kinds of materials is determined, according to the relation of surface appearance and size, it is determined that
Soft material percentage, has：
<mrow>
<mfrac>
<mrow>
<msub>
<mi>a</mi>
<mn>2</mn>
</msub>
<mo>-</mo>
<msub>
<mi>b</mi>
<mn>2</mn>
</msub>
</mrow>
<msub>
<mi>a</mi>
<mn>2</mn>
</msub>
</mfrac>
<mo>=</mo>
<mi>c</mi>
<mi>%</mi>
</mrow>
32) width of hard material basic body is calculated, the width means by hard material basic body are：
b2=a2- c%*a2
4. a kind of preparation method of soft and hard alternation pattern biomimetic material based on frictional behaviour according to claim 1, its
It is characterised by, the hard material of the desired soft and hard alternation pattern biomimetic material described in step 2 is between latticed array, grid
Away from for a3, rule of thumb a3Scope between 1-2mm, the b of the mesh width of hard material3Computational methods are comprised the steps of：
41) relation between the proportioning of soft or hard scantling and two kinds of materials is determined, according to the relation of surface appearance and size, it is determined that
Soft material percentage, has：
<mrow>
<mfrac>
<mrow>
<msub>
<mi>a</mi>
<mn>3</mn>
</msub>
<mo>*</mo>
<msub>
<mi>a</mi>
<mn>3</mn>
</msub>
<mo>-</mo>
<mrow>
<mo>(</mo>
<msub>
<mi>a</mi>
<mn>3</mn>
</msub>
<mo>-</mo>
<msub>
<mi>b</mi>
<mn>3</mn>
</msub>
<mo>)</mo>
</mrow>
<mo>*</mo>
<mrow>
<mo>(</mo>
<msub>
<mi>a</mi>
<mn>3</mn>
</msub>
<mo>-</mo>
<msub>
<mi>b</mi>
<mn>3</mn>
</msub>
<mo>)</mo>
</mrow>
</mrow>
<mrow>
<msub>
<mi>a</mi>
<mn>3</mn>
</msub>
<mo>*</mo>
<msub>
<mi>a</mi>
<mn>3</mn>
</msub>
</mrow>
</mfrac>
<mo>=</mo>
<mi>c</mi>
<mi>%</mi>
</mrow>
42) width of hard material basic body is calculated, can be by the width means of hard material basic body：
b3=a3-sqrt(a3*a3-0.8462a3*a3)
5. a kind of preparation method of soft and hard alternation pattern biomimetic material based on frictional behaviour according to claim 1, its
It is characterised by, two kinds of different materials of modulus of elasticity are all high polymer material or metal material.
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| CN107980249A (en) * | 2017-12-11 | 2018-05-04 | 山东理工大学 | Utilize the method for the clean dung beetle sand dune shape anisotropy convex closure design bionics plow moldboard of the legendary god of farming |
| CN108108537A (en) * | 2017-12-11 | 2018-06-01 | 山东理工大学 | The clean dung beetle epidermis of the legendary god of farming meets the modeling method of native face convex closure transverse axis sectional profile curve lin |
| CN108122278A (en) * | 2017-12-11 | 2018-06-05 | 山东理工大学 | With the method for the clean dung beetle epidermis sand dune shape convex closure design pit type bionics plow moldboard of the legendary god of farming |
| CN108122279A (en) * | 2017-12-11 | 2018-06-05 | 山东理工大学 | The method for imitating the clean dung beetle sand dune shape convex closure design pit type bionics plow moldboard of the legendary god of farming |
| CN108121859A (en) * | 2017-12-12 | 2018-06-05 | 山东理工大学 | The clean dung beetle epidermis of the legendary god of farming meets the modeling method of native face convex closure lengthwise cross section contour curve |
| CN109677082A (en) * | 2019-01-28 | 2019-04-26 | 吉林大学 | A kind of imitative beetle elytrum anti-ballistic materials |
| CN110560686A (en) * | 2018-06-05 | 2019-12-13 | 深圳市裕展精密科技有限公司 | Bionic shell pearl layer toughening structure and preparation method thereof |
| CN111411358A (en) * | 2020-05-18 | 2020-07-14 | 青岛科技大学 | Preparation method of transverse soft-hard alternated self-lubricating coating |
| CN113386343A (en) * | 2021-06-01 | 2021-09-14 | 吉林大学 | Material increase manufacturing method of lightweight rigid-flexible coupling heterostructure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107980249A (en) * | 2017-12-11 | 2018-05-04 | 山东理工大学 | Utilize the method for the clean dung beetle sand dune shape anisotropy convex closure design bionics plow moldboard of the legendary god of farming |
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| CN108122279A (en) * | 2017-12-11 | 2018-06-05 | 山东理工大学 | The method for imitating the clean dung beetle sand dune shape convex closure design pit type bionics plow moldboard of the legendary god of farming |
| CN108121859A (en) * | 2017-12-12 | 2018-06-05 | 山东理工大学 | The clean dung beetle epidermis of the legendary god of farming meets the modeling method of native face convex closure lengthwise cross section contour curve |
| CN110560686A (en) * | 2018-06-05 | 2019-12-13 | 深圳市裕展精密科技有限公司 | Bionic shell pearl layer toughening structure and preparation method thereof |
| CN109677082A (en) * | 2019-01-28 | 2019-04-26 | 吉林大学 | A kind of imitative beetle elytrum anti-ballistic materials |
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| CN113386343A (en) * | 2021-06-01 | 2021-09-14 | 吉林大学 | Material increase manufacturing method of lightweight rigid-flexible coupling heterostructure |
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