CN116151050B - Metamaterial vibration isolation device design method, manufacturing method and metamaterial vibration isolation device - Google Patents

Abstract

The application discloses a metamaterial vibration isolation device design method, a metamaterial vibration isolation device manufacturing method and a metamaterial vibration isolation device, and relates to the technical field of metamaterial vibration isolation design. The metamaterial vibration isolation device design method comprises the following steps: acquiring target performance curve information; acquiring the number of final force sampling points according to the target performance curve information; acquiring basic information of an approximation curve corresponding to the number of the final force sampling points according to the number of the final force sampling points; obtaining a metamaterial basic unit model; and generating a vibration isolation device three-dimensional model through three-dimensional software according to the basic information of the metamaterial basic unit model and the approximation curve. According to the metamaterial vibration isolation device design method, the force sampling points are used, namely, only the force information in the target performance curve is needed, the metamaterial vibration isolation device is designed in the mode, when the target performance curve information changes, the displacement related attribute of the metamaterial vibration isolation device does not need to be adjusted, and only the attribute related to the force information needs to be adjusted.

Description

Metamaterial vibration isolation device design method, manufacturing method and metamaterial vibration isolation device

Technical Field

The application relates to the technical field of metamaterial vibration isolation design, in particular to a metamaterial vibration isolation device design method, a metamaterial vibration isolation device manufacturing method and a metamaterial vibration isolation device.

Background

In the prior art, most of the quasi-zero stiffness vibration isolators work by utilizing the principle that positive and negative stiffness structures compensate each other, however, the quasi-zero stiffness vibration isolators in the prior art are complex in structure, and when the vibration isolator is designed in the mode, once the required load changes, the force and displacement properties of the positive stiffness structure and the negative stiffness structure are required to be adjusted simultaneously, the adjustment is complex, and in addition, the existing quasi-zero stiffness vibration isolator only has one quasi-zero stiffness region, so that low-frequency vibration isolation of two different loads cannot be realized.

It is therefore desirable to have a solution that solves or at least alleviates the above-mentioned drawbacks of the prior art.

Disclosure of Invention

The invention aims to provide a design method of a metamaterial vibration isolation device, which at least solves one technical problem.

The invention provides the following scheme:

according to an aspect of the present invention, there is provided a method for designing a metamaterial vibration isolation device, the method comprising:

Acquiring target performance curve information;

acquiring the number of final force sampling points according to the target performance curve information;

acquiring basic information of an approximation curve corresponding to the number of the final force sampling points according to the number of the final force sampling points;

obtaining a metamaterial basic unit model;

and generating a vibration isolation device three-dimensional model through three-dimensional software according to the basic information of the metamaterial basic unit model and the approximation curve.

Optionally, the obtaining the number of final force sampling points according to the target performance curve information includes:

acquiring the number of initial force sampling points;

acquiring basic information of an initial approximation curve according to the number of initial force sampling points;

calculating normalized root mean square error of the approximation curve and the target performance curve information according to the basic information of the initial approximation curve;

judging whether the normalized root mean square error of the approximation curve and the target performance curve information is smaller than an error upper limit threshold value, if yes, then

And determining the initial force sampling point number as the final force sampling point number.

Optionally, the obtaining the number of final force sampling points according to the target performance curve information further includes:

judging whether the normalized root mean square error of the approximation curve and the target performance curve information is smaller than an error upper limit threshold value, if not, then

Changing the number of force sampling points;

acquiring a modified approximation curve and basic information of the modified approximation curve according to the number of the modified force sampling points;

calculating normalized root mean square error of the modified approximation curve and the target performance curve information according to the basic information of the modified approximation curve;

judging whether the normalized root mean square error of the modified curve and the target performance curve information is smaller than an error upper limit threshold value, if so, then

And determining the number of the changed force sampling points as the number of final force sampling points.

Optionally, the obtaining basic information of the approximation curve corresponding to the number of the final force sampling points according to the number of the final force sampling points includes:

acquiring a final sampling point sequence according to the number of the final force sampling points;

performing Fourier forward transformation on the final sampling point sequence to obtain a transformed sequence;

and acquiring an approximation curve and basic information of the approximation curve according to the transformed sequence.

Optionally, the approximation curve includes at least one cosine curve and one constant curve;

the basic information of the approximation curve comprises cosine curve information and constant curve information, wherein,

the cosine curve information comprises the number of cosine curves, amplitude information of each cosine curve, period information of each cosine curve and initial phase information of each cosine curve;

The constant curve information comprises the number of constant curves, amplitude information of each constant curve, period information of each constant curve and initial phase information of each constant curve.

Optionally, the metamaterial base unit model comprises a first multistable magnet structure and a second multistable magnet structure, wherein,

the first multistable magnet structure comprises two groups of first static magnet assemblies and a first moving magnet assembly, the first static magnet assemblies comprise a first static magnet assembly and a first static magnet resin frame which at least partially wraps the first static magnet assembly, the first moving magnet assemblies comprise first moving magnet strips and a first moving magnet resin frame which at least partially wraps the first moving magnet strips, one group of static magnet assemblies is positioned on one side of the first moving magnet strips, the other group of static magnet assemblies is positioned on the other side of the first moving magnet strips, the first moving magnet strips can move in a space formed by encircling the two groups of static magnet assemblies, and each static magnet assembly comprises a plurality of static magnet strips which are arranged in an equidistant manner along the moving direction of the first moving magnet strips;

the second multistable magnet structure comprises two second magnetostatic iron components and a second moving magnet component, the second magnetostatic iron components comprise a magnetostatic iron plate body and a second magnetostatic resin frame at least partially wrapping the magnetostatic iron plate body, and the second moving magnet component comprises a moving magnet plate body and a second moving magnet resin frame at least partially wrapping the moving magnet plate body; one second magnetostatic iron assembly is positioned on one side of the moving magnet plate-shaped body, and the other second magnetostatic iron assembly is positioned on the other side of the moving magnet plate-shaped body, and the moving magnet plate-shaped body can move in a space formed by the two second magnetostatic iron assemblies.

Optionally, the vibration isolation device manufactured according to the basic information of the metamaterial basic unit model and the approximation curve comprises:

generating first parameter information of the multistable magnet according to the cosine curve information, wherein one piece of cosine curve information generates first parameter information of the multistable magnet;

generating multistable magnet second parameter information according to constant curve information;

generating a first magnet vibration isolation monomer model through three-dimensional software according to the first parameter information of the multistable magnet and the first multistable magnet structure, and generating a first magnet vibration isolation monomer model through the first parameter information of the multistable magnet;

generating a second magnet vibration isolation monomer model through three-dimensional software according to the second parameter information of the multistable magnet and a second multistable magnet structure;

generating a bottom plate model through three-dimensional software according to each first magnet vibration isolation monomer model and each second magnet vibration isolation monomer model;

generating a top plate model through three-dimensional software according to each first magnet vibration isolation monomer model and each second magnet vibration isolation monomer model;

assembling the bottom plate model, the top plate model, each first magnet vibration isolation monomer model and each second magnet vibration isolation monomer model in the three-dimensional software, so as to form a three-dimensional model of the vibration isolation device; the first magnet vibration isolation monomer models and the second magnet vibration isolation monomer models are connected in parallel.

Optionally, the generating the first parameter information of the multistable magnet according to the cosine curve information includes:

acquiring period information of a magnet cosine curve;

acquiring length parameters and thickness parameters of the first multistable magnet structure according to the period information of the cosine curve of the magnet;

acquiring a cloud picture of a magnet cosine curve amplitude and width parameters and transverse spacing parameters under specified residual magnetic intensity;

determining width parameters and transverse interval parameters of the first multistable magnet structure according to the amplitude and width parameters of the cosine curve of the magnet, the transverse interval parameter cloud picture, the determined thickness parameters, the determined length parameters and the determined residual magnetic intensity parameters;

determining the magnetic pole attribute of the first multistable magnet structure according to the amplitude positive and negative of the cosine curve of the approximation curve;

and acquiring a vertical distance parameter of the first movable magnet strip and the static magnet strip closest to the first movable magnet strip in the first multistable magnet structure according to the initial force of the cosine curve of the magnet and the initial phase requirement of the cosine curve of the approximation curve.

The application also provides a manufacturing method of the metamaterial vibration isolation device, which comprises the following steps:

the method for designing the metamaterial vibration isolation device is adopted to obtain a three-dimensional model of the vibration isolation device;

Acquiring a magnet material and a resin material;

and processing the magnet material and the resin material according to the three-dimensional model of the vibration isolation device to manufacture the vibration isolation device.

The application also provides a metamaterial vibration isolation device, which is obtained by manufacturing the metamaterial vibration isolation device through the manufacturing method of the metamaterial vibration isolation device.

The metamaterial vibration isolation device design method has the following advantages:

(1) The sampling point of the method only needs force information in the target performance curve, the metamaterial vibration isolation device is designed in the mode, the displacement related attribute of the metamaterial vibration isolation device does not need to be adjusted when the target performance curve information changes, and only the attribute related to the force needs to be adjusted, so that the problem that the force related attribute and the displacement related attribute need to be adjusted when the quasi-zero stiffness vibration isolator is designed in the prior art is solved, and the design method of the method is simpler, faster and the calculated amount is reduced.

(2) According to the vibration isolation device, the approximation curve is determined according to the number of the final force sampling points, and the vibration isolation device is designed through the approximation curve, and as the approximation curve can embody a curve with a more complex form, the vibration isolation device which can meet more complex requirements can be obtained through the design according to the approximation curve, for example, the approximation curve can embody a plurality of quasi-zero stiffness regions, and then the metamaterial vibration isolation device which is designed and generated through the approximation curve which embodies the plurality of quasi-zero stiffness regions can have the plurality of quasi-zero stiffness regions.

(3) According to the method, a multistable magnet structure is designed to comprise two fixed static magnet groups and one movable magnet, one static magnet group is located on one side of the movable magnet, the other static magnet group is located on the other side of the movable magnet, the movable magnet can move up and down in a space formed by the two static magnet groups, and in the mode, the force-displacement relationship of the multistable magnet structure can be made to be a cosine curve, so that the multistable magnet structure can be designed to be a metamaterial vibration isolation device, specifically, when the movable magnet moves along the vertical direction, the relative distance between the movable magnet and each static magnet in the left-right row can be calculated according to the position of the movable magnet in the space, so that the interaction force of each static magnet to the movable magnet is calculated, the resultant force obtained by adding the acting forces is the force of the multistable magnet structure, namely the moving magnet displacement in the vertical direction, namely the displacement of the multistable magnet structure, and the force-displacement curve of the multistable magnet structure can be obtained.

(4) The existing multistable magnet structure is formed by arranging single bodies in a periodical manner, and the rows are arranged at equal intervals, (the moving magnet and the static magnet are at equal intervals, and the intervals between the static magnets on the same side of the first magnet vibration isolation single body model are the same), and the cosine curve or the constant curve can be obtained by adopting the structure.

(5) The movable magnet and the static magnet of the second magnet vibration isolation monomer model are designed to be long, and by adopting the design, the magnetic attraction between the movable magnet and the static magnet is changed very little in a fixed stroke of the movable magnet, so that a force-displacement curve presented between the movable magnet and the static magnet is a constant curve.

(6) The residual magnetic intensity of the permanent magnet is not affected by other permanent magnets, so that all magnet vibration isolation single models can be connected in parallel at will without changing the force-displacement characteristic of the whole metamaterial vibration isolation device, and therefore, the combined arrangement can be carried out at will according to the actual use scene, and the combined arrangement is suitable for various spaces and shapes.

Drawings

Fig. 1 is a flow chart of a design method of a metamaterial vibration isolation device in an embodiment of the present application.

Fig. 2 is a block diagram of an electronic device according to a method for designing a metamaterial vibration isolation device according to an embodiment of the present application.

Fig. 3 is a schematic structural view of a metamaterial vibration isolation device in an embodiment of the present application.

Fig. 4 is a schematic structural diagram of a first magnet vibration isolation monomer model according to an embodiment of the present application.

Fig. 5 is a schematic structural diagram of a second magnet vibration isolation monomer model according to an embodiment of the present application.

Fig. 6 is a schematic structural diagram of a moving magnet assembly and a static magnet assembly in a first magnet vibration isolation monomer model according to an embodiment of the present application.

Fig. 7 is a schematic structural diagram of a moving magnet assembly and a static magnet assembly in a second magnet vibration isolation monomer model according to an embodiment of the present application.

Fig. 8 is a schematic structural view of a metamaterial vibration isolation device for low-frequency vibration isolation applied to a vehicle in an embodiment of the present application.

FIG. 9 is a graph comparing a target performance curve with two regions of quasi-zero stiffness to an approximation curve with a final sample point number of 16 in an embodiment of the present application.

Reference numerals:

1. a first magnetostatic resin frame; 2. a first moving magnet bar; 3. a first moving magnet resin frame; 4. a magnetostatic iron bar; 5. a static magnet plate-like body; 6. a second magnetostatic iron resin frame; 7. a moving magnet plate-like body; 8. a second moving magnet resin frame; 9. a magnet movement path; 10. a guide groove; 11. a top plate; 12. a bottom plate.

Detailed Description

The following description of the embodiments of the present invention will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Fig. 1 is a flow chart of a design method of a metamaterial vibration isolation device in an embodiment of the present application.

The design method of the metamaterial vibration isolation device shown in fig. 1 comprises the following steps:

step 1: acquiring target performance curve information;

step 2: acquiring the number of final force sampling points according to the target performance curve information;

step 3: acquiring basic information of an approximation curve corresponding to the number of the final force sampling points according to the number of the final force sampling points;

step 4: obtaining a metamaterial basic unit model;

step 5: and generating a vibration isolation device three-dimensional model through three-dimensional software according to the basic information of the metamaterial basic unit model and the approximation curve.

In this embodiment, the target performance curve information is a force-displacement curve.

The metamaterial vibration isolation device design method has the following advantages:

(1) The sampling point of the method only needs force information in the target performance curve, the metamaterial vibration isolation device is designed in the mode, the displacement related attribute of the metamaterial vibration isolation device does not need to be adjusted when the target performance curve information changes, and only the attribute related to the force needs to be adjusted, so that the problem that the force related attribute and the displacement related attribute need to be adjusted when the quasi-zero stiffness vibration isolator is designed in the prior art is solved, and the design method of the method is simpler, faster and the calculated amount is reduced.

(2) According to the vibration isolation device, the approximation curve is determined according to the number of the final force sampling points, and the vibration isolation device is designed through the approximation curve, and as the approximation curve can embody a curve with a more complex form, the vibration isolation device which can meet more complex requirements can be obtained through the design according to the approximation curve, for example, the approximation curve can embody a plurality of quasi-zero stiffness regions, and then the metamaterial vibration isolation device which is designed and generated through the approximation curve which embodies the plurality of quasi-zero stiffness regions can have the plurality of quasi-zero stiffness regions.

In this embodiment, obtaining the number of final force sampling points according to the target performance curve information includes:

Acquiring the number of initial force sampling points;

acquiring basic information of an initial approximation curve according to the number of initial force sampling points;

calculating normalized root mean square error of the approximation curve and the target performance curve information according to the basic information of the initial approximation curve;

judging whether the normalized root mean square error of the approximation curve and the target performance curve information is smaller than an error upper limit threshold value, if yes, then

And determining the initial force sampling point number as the final force sampling point number.

In this embodiment, the obtaining the number of final force sampling points according to the target performance curve information further includes:

judging whether the normalized root mean square error of the approximation curve and the target performance curve information is smaller than an error upper limit threshold value, if not, then

Changing the number of force sampling points;

acquiring a modified approximation curve and basic information of the modified approximation curve according to the number of the modified force sampling points;

calculating normalized root mean square error of the modified approximation curve and the target performance curve information according to the basic information of the modified approximation curve;

judging whether the normalized root mean square error of the modified curve and the target performance curve information is smaller than an error upper limit threshold value, if so, then

And determining the number of the changed force sampling points as the number of final force sampling points.

It can be understood that if the normalized root mean square error of the modified curve and the target performance curve information is not smaller than the error upper threshold, the number of force sampling points can be repeatedly modified and the normalized root mean square error of the modified curve and the target performance curve information can be obtained until the error is smaller than the error upper threshold.

In this embodiment, obtaining basic information of an approximation curve corresponding to the number of final force sampling points according to the number of final force sampling points includes:

acquiring a final sampling point sequence according to the number of the final force sampling points;

performing Fourier forward transformation on the final sampling point sequence to obtain a transformed sequence;

and acquiring an approximation curve and basic information of the approximation curve according to the transformed sequence.

Referring to fig. 9, in the present embodiment, target performance curve information

The force information is sampled at equal intervals between the starting point and the end point of the curve, and the final sampling point sequence is recorded as a sequence {F _j |j= 0, 1, … ,N-1}；

In this embodiment, fourier positive transformation is performed on the final sampling point sequence, and the obtained transformed sequence is obtained by adopting the following formula:

the method comprises the steps of carrying out a first treatment on the surface of the Wherein, the liquid crystal display device comprises a liquid crystal display device,

For the transformed sequence, +.>

Is a normal parameter of the forward transformation, +.>

For the numbering of the transformed sequences, +.>

For the final force sampling point number, +.>

For the final sample point sequence, +.>

For the number of the final sample sequence, +.>

Is the circumference ratio.

In this embodiment, the approximation curve is obtained using the following formula:

the method comprises the steps of carrying out a first treatment on the surface of the Wherein, the liquid crystal display device comprises a liquid crystal display device,

to approximate a curve +.>

At->

When the time is cosine curve, ">

At->

And is a constant curve.

In the present embodiment, the approximation curve is composed ofN-1 cosine curve and 1 constant curve.

In this embodiment, each cosine curve is obtained by the following formula:

the method comprises the steps of carrying out a first treatment on the surface of the Wherein, the liquid crystal display device comprises a liquid crystal display device,

is the amplitude of the cosine curve, +.>

For the period of the cosine curve, +.>

Is the initial phase of the cosine curve.

In this embodiment, each constant curve is obtained using the following formula:

the method comprises the steps of carrying out a first treatment on the surface of the Wherein, the liquid crystal display device comprises a liquid crystal display device,

is a constant curve>

For the first element of the transformed sequence, < >>

Amplitude of constant curve, +.>

The period of the constant curve is 0, and the initial phase of the constant curve is 0.

In this embodiment, the approximation curve includes at least one cosine curve and one constant curve;

the basic information of the approximation curve comprises cosine curve information and constant curve information, wherein,

The cosine curve information comprises the number of cosine curves, amplitude information of each cosine curve, period information of each cosine curve and initial phase information of each cosine curve;

the constant curve information comprises the number of the constant curves, the amplitude information of the constant curves, the period information of the constant curves and the initial phase information of the constant curves.

In this embodiment, the amplitude information of each cosine curve or the amplitude information of the constant curve is obtained by adopting the following formula:

the method comprises the steps of carrying out a first treatment on the surface of the Wherein, the liquid crystal display device comprises a liquid crystal display device,

for amplitude information, ++>

For the transformed sequence,/->

For the numbering of the transformed sequences, +.>

The number of final force sampling points.

In this embodiment, the period information of each cosine curve and the period information of the constant curve are obtained by adopting the following formula:

the method comprises the steps of carrying out a first treatment on the surface of the Wherein, the liquid crystal display device comprises a liquid crystal display device,

when (I)>

For the period of the constant curve, +.>

When (I)>

Periodic information for cosine curve, +.>

For the numbering of the transformed sequences, +.>

The number of final force sampling points.

In this embodiment, the initial phase information of each cosine curve and the initial phase information of the constant curve are obtained by adopting the following formula:

the method comprises the steps of carrying out a first treatment on the surface of the Wherein, the liquid crystal display device comprises a liquid crystal display device,

is the initial phase of the cosine curve,/>

For the final force sampling point number, +.>

Numbering of the transformed sequences, +. >

Is the circumference ratio.

In this embodiment, the normalized root mean square error is obtained using the following formula:

the method comprises the steps of carrying out a first treatment on the surface of the Wherein, the liquid crystal display device comprises a liquid crystal display device,

for normalizing root mean square error->

To approach the curve, ++>

Is a target curve->

Is the differential of the displacement.

In this embodiment, the number of sampling points is obtained by the following formula:

the method comprises the steps of carrying out a first treatment on the surface of the Wherein, the liquid crystal display device comprises a liquid crystal display device,

for the final force sampling point number, +.>

Is the upper error threshold value, ">

For normalized root mean square error.

In this embodiment, the metamaterial base unit model comprises a first multistable magnet structure and a second multistable magnet structure, wherein,

referring to fig. 4 to 7, the first multistable magnet structure includes a first static magnet assembly including two first static magnet groups and a first static magnet resin frame 1 at least partially surrounding the two first static magnet groups, the first moving magnet assembly including a first moving magnet bar 2 and a first moving magnet resin frame 3 at least partially surrounding the first moving magnet bar 2, wherein one static magnet group is located at one side of the first moving magnet bar 2 and the other static magnet group is located at the other side of the first moving magnet bar 2, the first moving magnet bar 2 is movable within a space defined by the two static magnet groups, wherein each static magnet group includes a plurality of static magnet bars 4 arranged in an equally spaced manner along the moving direction of the first moving magnet bar, and in this embodiment, the moving direction of the first moving magnet bar 2 is the up-down direction shown in fig. 3;

The second multistable magnet structure comprises two second magnetostatic iron components and a second moving magnet component, the second magnetostatic iron components comprise a magnetostatic iron plate body 5 and a second magnetostatic resin frame 6 at least partially wrapping the magnetostatic iron plate body 5, and the second moving magnet components comprise a moving magnet plate body 7 and a second moving magnet resin frame 8 at least partially wrapping the moving magnet plate body 7; one second magnetostatic iron assembly is located on one side of the moving magnet plate-like body 7, the other second magnetostatic iron assembly is located on the other side of the moving magnet plate-like body 7, and the moving magnet plate-like body 7 is movable in a space surrounded by the two second magnetostatic iron assemblies, and in this embodiment, the moving direction of the moving magnet plate-like body 7 is the up-down direction shown in fig. 3.

Referring to fig. 6, in the present embodiment, a magnet movement path 9 and a guide groove 10 are provided on a first magnetostatic resin frame 1 at least partially wrapping the first magnetostatic magnet group, wherein a part of a first moving magnet resin frame 3 at least partially wrapping the first moving magnet bar 2 is provided in the guide groove 10, another part is provided in the magnet movement path 9, and the first moving magnet bar 2 is provided in the first moving magnet resin frame 3 provided in the magnet movement path 9.

Referring to fig. 7, in the present embodiment, a magnet moving path 9 and a guide groove 10 are provided on a second magnetostatic resin frame 6 at least partially surrounding the magnetostatic iron plate-like body 5, wherein a part of a second moving magnet resin frame 8 at least partially surrounding the moving magnet plate-like body 7 is provided in the guide groove 10, another part is provided in the magnet moving path 9, and a moving magnet plate-like body 7 is provided in the second moving magnet resin frame 8 provided in the magnet moving path 9.

It will be appreciated that the direction of movement of the first moving magnet bar 2 and the moving magnet plate-like body 7 is the vibration isolation direction that can be achieved.

In this embodiment, the vibration isolation device manufactured according to the meta-material basic unit model and the basic information of the approximation curve includes:

generating first parameter information of the multistable magnet according to the cosine curve information, wherein one piece of cosine curve information generates first parameter information of the multistable magnet;

generating multistable magnet second parameter information according to constant curve information;

generating a first magnet vibration isolation monomer model through three-dimensional software according to the first parameter information of the multistable magnet and the first multistable magnet structure, and generating a first magnet vibration isolation monomer model through the first parameter information of the multistable magnet;

Generating a second magnet vibration isolation monomer model through three-dimensional software according to the second parameter information of the multistable magnet and a second multistable magnet structure;

generating a bottom plate model through three-dimensional software according to each first magnet vibration isolation monomer model and each second magnet vibration isolation monomer model;

generating a top plate model through three-dimensional software according to each first magnet vibration isolation monomer model and each second magnet vibration isolation monomer model;

assembling the bottom plate model, the top plate model, each first magnet vibration isolation monomer model and each second magnet vibration isolation monomer model in the three-dimensional software, so as to form a three-dimensional model of the vibration isolation device; wherein, each first magnet vibration isolation monomer model and each second magnet vibration isolation monomer model are parallelly connected each other.

Referring to fig. 4, in the present embodiment, the multistable magnet first parameter information includes size information of a first moving magnet bar, size information of a static magnet bar, lateral spacing of the moving magnet and the static magnet

Vertical distance between every two adjacent magnetostatic iron bars +.>

Vertical distance between the first moving magnet bar and the uppermost magnetostatic iron bar (the uppermost magnetostatic iron bar is indicated by 4 in FIG. 6) >

Residual magnetic strength of moving magnet and static magnet +.>

And magnetic pole properties of the moving magnet and the static magnet relative to each other, wherein the size information of the first moving magnet bar and the static magnet bar includes length information +.>

Width information->

Thickness information->

。

Referring to fig. 5, in the present embodiment, the multistable magnet second parameter information includes size information of the moving magnet plate-like body, size information of the static magnet plate-like body, lateral spacing of the moving magnet plate-like body and the static magnet plate-like bodyhVertical distance between movable magnet plate and static magnet plate

Residual magnetic strength of moving magnet and static magnet +.>

And magnetic pole properties of the moving magnet and the static magnet relative to each other, wherein the size information of the moving magnet plate-like body and the static magnet plate-like body includes length information +.>

Width information->

Thickness information->

。

In this embodiment, generating the first parameter information of the multistable magnet according to the cosine curve information includes:

acquiring period information of a magnet cosine curve;

acquiring length parameters and thickness parameters of the first multistable magnet structure according to the period information of the cosine curve of the magnet;

acquiring a cloud picture of a magnet cosine curve amplitude and width parameters and transverse spacing parameters under specified residual magnetic intensity;

Determining width parameters and transverse interval parameters of the first multistable magnet structure according to the amplitude and width parameters of the cosine curve of the magnet, the transverse interval parameter cloud picture, the determined thickness parameters, the determined length parameters and the determined residual magnetic intensity parameters;

determining the magnetic pole attribute of the first multistable magnet structure according to the amplitude positive and negative of the cosine curve of the approximation curve;

and acquiring a vertical distance parameter of the first movable magnet strip and the static magnet strip closest to the first movable magnet strip in the first multistable magnet structure according to the initial force of the cosine curve of the magnet and the initial phase requirement of the cosine curve of the approximation curve.

In this embodiment, the periodic information of the cosine curve of the magnet is obtained according to the force-displacement curve of the first multistable magnet structure.

In the present embodiment, the force-displacement relationship of the multistable magnet structure is obtained, specifically, the force-displacement relationship is obtained by the following formula:

the method comprises the steps of carrying out a first treatment on the surface of the Wherein, the liquid crystal display device comprises a liquid crystal display device,

force-displacement relationship for a multistable magnet structure, +.>

For the number of static magnets in each row of the first static magnet group, < >>

Numbering (numbering from bottom to top) for each row of static magnets in the first static magnet group,>

the number of the first static magnet group is +.>

Force-displacement relationship of the stationary magnet to the first moving magnet bar.

In the present embodiment of the present invention, in the present embodiment,

the method is obtained by the following formula:

the method comprises the steps of carrying out a first treatment on the surface of the Wherein, the liquid crystal display device comprises a liquid crystal display device,

for the residual magnetic strength of the magnet, +.>

Is the magnetic permeability of the vacuum and is equal to the magnetic permeability of the vacuum,

to be able to only take on logical parameters with a value of 0 or 1, and (2)>

To calculate->

Is a function of the intermediate function of (a).

The method is obtained by the following formula:

the method comprises the steps of carrying out a first treatment on the surface of the Wherein, the liquid crystal display device comprises a liquid crystal display device,

is to calculate->

Is an intermediate variable of (a).

The method is obtained by the following formula:

the method comprises the steps of carrying out a first treatment on the surface of the Wherein, the liquid crystal display device comprises a liquid crystal display device,

when calculating the first motionWhen the magnet bar and the magnetostatic magnet bar are used,

is the length parameter of the first moving magnet bar and the static magnet bar, +.>

Is the width parameter of the first moving magnet bar and the static magnet bar, +.>

Is the thickness parameter of the first moving magnet bar and the static magnet bar, +.>

Is the vertical distance between the first movable magnet strip and the magnetostatic magnet strip nearest to the first movable magnet strip, < >>

Is the vertical distance between every two adjacent magnetostatic iron bars, < >>

Is the transverse distance between the moving magnet and the static magnet.

The periodic information of the cosine curve of the magnet is obtained by the following method:

from FIG. 4, a force-displacement curve of a multi-stable magnet structure can be obtained

Is +.>

Wherein, the liquid crystal display device comprises a liquid crystal display device,

is a multistable magnet structural force-displacement curve +.>

Is a periodic one.

In the present embodiment, when

，/>

，/>

，/>

In the time of this, take ∈ ->

And

calculate the difference +.>

Force-displacement relationship of multistable magnet structure under value +. >

For curve->

Fitting the region from the second zero point to the second-to-last zero point with cosine function to obtain +.>

And

in the case of fitting, the determination coefficient of goodness of fit>

And parameters->

Taking the relation of +.>

The value is the optimal goodness of fit, i.e. +.>

Corresponding->

At this time, the force-displacement curve of the multistable magnet structure is +.>

The area from the second zero point to the second last zero point is a cosine curve, and the period is as follows:

the amplitude is the amplitude of the fitting function>

。

For the period required in the period formula of the cosine curve of the approximation curve, let

The length parameter of the first multistable magnet structure required for realizing each cosine curve of the approximation curve can be obtained>

And thickness parameter->

。

In the present embodiment, for a given residual magnetic strength

Acquiring the amplitude of a cosine curve of the magnet>

To the first moving magnet bar and the static magnet bar>

Lateral distance between moving magnet and static magnet +.>

In particular, in

And->

In the range, the amplitude of the cosine curve of the magnet is drawn +.>

Parameter->

、/>

Is a cloud image of (a).

For the absolute value of the amplitude required in the amplitude formula of the cosine curve of the approximation curve, the length information of the first multistable magnet structure is known

And thickness information->

In the case of (1) width information is taken>

Initial value of +.>

First, the lateral distance ++between the moving magnet and the stationary magnet is adjusted>

Stopping if the absolute value requirement of the amplitude is met, otherwise, firstly adjusting the width information +.>

Then keep the width information +.>

Unchanged, adjust lateral spacing->

Until the absolute value requirement of the amplitude is met, the transverse distance can be obtained

Width information->

。

For the amplitude required in the amplitude formula of the cosine curve approaching the curve, when the amplitude is positive, the magnets opposite to the first moving magnet strip and the first static magnet strip are heteropolar, namely the first moving magnet strip and the first static magnet strip have heteropolar attraction; when the amplitude is negative, the opposite magnetic poles of the first moving magnet strip and the first static magnet strip are homopolar, namely the first moving magnet strip and the first static magnet strip have homopolar repulsive action.

In the present embodiment, when the residual magnetic strength of the multistable magnet structure is

Length information->

Thickness information->

Width information->

Lateral distance->

Vertical distance between every two adjacent magnetostatic iron bars +.>

After the determination, let->

Initial force of a multistable magnet structure>

Vertical distance +.A from the first moving magnet bar and the uppermost magnetostatic iron bar (the uppermost magnetostatic iron bar is indicated by 4 in FIG. 6) >

Is a relationship of (3).

For the initial phase required in the initial phase formula of the cosine curve of the approximation curve, in

To->

The vertical distance between the first moving magnet bar and the uppermost static magnet bar (the uppermost static magnet bar is indicated by 4 in FIG. 6) is adjusted within the range ∈>

The following formula is satisfied:

。

in this embodiment, generating the multistable magnet second parameter information according to the constant curve information includes:

acquiring a force-displacement curve of the second multistable magnet structure;

acquiring period information of a permanent magnet curve;

acquiring length parameters and thickness parameters of the magnet according to the period information of the permanent magnet curve;

acquiring a cloud picture of a constant curve amplitude value, a width parameter and a transverse spacing parameter of a magnet under specified residual magnetic intensity;

determining width parameters and transverse interval parameters according to the amplitude and width parameters of the permanent magnet curve, the transverse interval parameter cloud picture, the determined thickness parameters, the determined length parameters and the determined residual magnetic intensity;

determining the magnetic pole attribute of the magnet according to the positive and negative of the amplitude value of the constant curve of the approximation curve;

and acquiring the vertical distance parameter of the moving magnet and the static magnet according to the initial phase of the constant curve of the approximation curve and the starting point of the constant curve of the magnet.

In this embodiment, the force of the second multistable magnet structure is obtainedThe displacement relationship is the same as the method for obtaining the force-displacement relationship of the first multistable magnet structure, the only difference being in the formula

And will not be described in detail herein.

In the present embodiment, when

，/>

，/>

，/>

，/>

Calculating force-displacement relation of multistable magnet structure>

At this time +.>

The area with small force value change near the second valley value can be regarded as a constant curve, and the period is obtained by the following formula:

the method comprises the steps of carrying out a first treatment on the surface of the Wherein, the liquid crystal display device comprises a liquid crystal display device,

for the period of the permanent magnet curve, +.>

For the end point displacement value of the permanent magnet curve, < >>

Is the starting point displacement value of the permanent magnet curveObtained by the following formula:

wherein, the method comprises the steps of, wherein,

is->

Upper shift is +.>

Force value at->

Is->

Upper shift is +.>

Force value at->

For the displacement value at the valley +.>

Is->

The second valley on, the magnitude of the constant curve. />

In the present embodiment, calculation

And->

Is a relationship of (2). Because the magnet plate-shaped body which is too thin is easy to break and unsafe in practical use, the thickness parameter of the magnet plate-shaped body takes a moderate valueC= 5 mm。

For the period required in the period formula of the constant value curve of the approximation curve, let

Can obtain->

Value according to->

And->

Can determine +. >

Value to determine the length information of the moving magnet plate and the static magnet plate +.>

。

In this embodiment, the width information of the moving magnet plate-like body and the static magnet plate-like body is the same as the method for acquiring the first moving magnet bar and the static magnet bar described above, and will not be described in detail here.

For the amplitude required in the amplitude formula of the constant curve approaching the curve, when the amplitude is positive, the magnets of the movable magnet plate-shaped body and the static magnet plate-shaped body, which are opposite, are homopolar, namely the movable magnet plate-shaped body and the static magnet plate-shaped body have homopolar repulsion action; when the amplitude is negative, the opposite magnetic poles of the movable magnet plate-shaped body and the static magnet plate-shaped body are different poles, namely, the movable magnet plate-shaped body and the static magnet plate-shaped body have different pole attraction effect.

In this embodiment, the initial force of the second multistable magnet structure

Vertical distance from moving magnet plate-like body and stationary magnet plate-like body +.>

The method for obtaining the relationship of the first multistable magnet structure is the same as the method for obtaining the first multistable magnet structure, and will not be described herein.

For constant curves approximating curvesThe initial phase required in the initial phase formula is that

To->

Adjusting the vertical distance between the movable magnet plate-shaped body and the static magnet plate-shaped body within the range +. >

The following formula is satisfied:

the method comprises the steps of carrying out a first treatment on the surface of the Wherein, the liquid crystal display device comprises a liquid crystal display device,

is->

Vertical distance value corresponding to the first peak point of the curve,/->

Is->

The second valley point of the curve corresponds to the vertical pitch value.

In the embodiment, after the first parameter information of the multistable magnet is obtained, a first magnet vibration isolation monomer model can be generated through three-dimensional software;

in this embodiment, after the second parameter information of the multistable magnet is obtained, a second magnet vibration isolation monomer model may be generated by three-dimensional software.

In the present embodiment, after the first magnet vibration isolation unit model and the second magnet vibration isolation unit model are generated, the base plate model and the top plate model need to be generated based on the first magnet vibration isolation unit model and the second magnet vibration isolation unit model, and in the present embodiment, the base plate model is connected to one end of each first magnetostatic iron assembly and one end of each second magnetostatic iron assembly, and in the present embodiment, the top plate model is connected to the other end of each first movable magnet bar and the other end of the movable magnet plate body.

In the present application, the first magnet vibration isolation unit models and the second magnet vibration isolation unit models are connected in parallel.

Referring to fig. 3, fig. 3 is a schematic structural diagram of a metamaterial vibration isolation device.

It should be understood that the design method of the present application is not limited to how to arrange and combine, i.e. the arrangement shown in fig. 3, but any other arrangement may be adopted, for example, the arrangement may be arranged in a horizontal row or a vertical row, or any form of forming a circle, etc.

The application also provides a manufacturing method of the metamaterial vibration isolation device, which comprises the following steps:

the method for designing the metamaterial vibration isolation device is adopted to obtain a three-dimensional model of the vibration isolation device;

acquiring a magnet material and a resin material;

and processing the magnet material and the resin material according to the three-dimensional model of the vibration isolation device to manufacture the vibration isolation device.

In this embodiment, resin materials may be printed out by a 3D printing manner, and the first parameter information and the second parameter information of the multistable magnet designed by each magnet material according to the design method of the present application may be processed and respectively embedded into the corresponding resin frames printed by the 3D printing manner, so that details of how to process the magnet materials and how to print out the resin materials by the 3D printing manner are not described in detail herein.

In this embodiment, the bottom plate and the top plate are manufactured by precision machining using a numerically controlled lathe, and in this embodiment, a non-ferromagnetic metal aluminum material is used for the bottom plate and the top plate.

In this embodiment, the base plate and the first magnetostatic iron assembly and the second magnetostatic iron assembly connected thereto may be detachably connected, for example, by bolting.

In this embodiment, the top plate, the first moving magnet bar and the moving magnet plate-like body connected thereto may be detachably connected, for example, by bolting.

In this embodiment, the approximation curve is written by MATLAB program.

The application also provides a metamaterial vibration isolation device, which is obtained by manufacturing the metamaterial vibration isolation device through the manufacturing method of the metamaterial vibration isolation device.

The metamaterial vibration isolation device design method has the following advantages:

(1) The sampling point of the method only needs force information in the target performance curve, the metamaterial vibration isolation device is designed in the mode, the displacement related attribute of the metamaterial vibration isolation device does not need to be adjusted when the target performance curve information changes, and only the attribute related to the force needs to be adjusted, so that the problem that the force related attribute and the displacement related attribute need to be adjusted when the quasi-zero stiffness vibration isolator is designed in the prior art is solved, and the design method of the method is simpler, faster and the calculated amount is reduced.

(2) According to the vibration isolation device, the approximation curve is determined according to the number of the final force sampling points, and the vibration isolation device is designed through the approximation curve, and as the approximation curve can embody a curve with a more complex form, the vibration isolation device which can meet more complex requirements can be obtained through the design according to the approximation curve, for example, the approximation curve can embody a plurality of quasi-zero stiffness regions, and then the metamaterial vibration isolation device which is designed and generated through the approximation curve which embodies the plurality of quasi-zero stiffness regions can have the plurality of quasi-zero stiffness regions.

(3) According to the method, a multistable magnet structure is designed to comprise two fixed static magnet groups and one movable magnet, one static magnet group is located on one side of the movable magnet, the other static magnet group is located on the other side of the movable magnet, the movable magnet can move up and down in a space formed by the two static magnet groups, and in the mode, the force-displacement relationship of the multistable magnet structure can be made to be a cosine curve, so that the multistable magnet structure can be designed to be a metamaterial vibration isolation device, specifically, when the movable magnet moves along the vertical direction, the relative distance between the movable magnet and each static magnet in the left-right row can be calculated according to the position of the movable magnet in the space, so that the interaction force of each static magnet to the movable magnet is calculated, the resultant force obtained by adding the acting forces is the force of the multistable magnet structure, namely the moving magnet displacement in the vertical direction, namely the displacement of the multistable magnet structure, and the force-displacement curve of the multistable magnet structure can be obtained.

(4) The existing multistable magnet structure is formed by arranging single bodies in a periodical manner, and the rows are arranged at equal intervals, (the moving magnet and the static magnet are at equal intervals, and the static magnet on the same side of the second magnet vibration isolation single body model is at the same interval), and the cosine curve or the constant curve can be obtained by adopting the structure.

(5) The movable magnet and the static magnet of the second magnet vibration isolation monomer model are designed to be long, and by adopting the design, the magnetic attraction force between the movable magnet and the static magnet is changed very little in a fixed stroke of the movable magnet, so that a force-displacement curve between the movable magnet and the transit magnet is a constant curve.

(6) The residual magnetic intensity of the permanent magnet is not affected by other permanent magnets, so that all the single modules can be connected in parallel randomly without changing the force-displacement characteristic of the whole metamaterial vibration isolation device, and therefore, the combined arrangement can be carried out randomly according to the actual use scene, and the combined arrangement device is suitable for various spaces and shapes.

The application also provides an automobile suspension damper, which comprises the metamaterial vibration isolation device.

The application also provides a vehicle comprising the metamaterial vibration isolation device.

Referring to fig. 8, the metamaterial vibration isolation device can be arranged on a vehicle and used as a structural design of an automobile suspension damper of the vehicle. In the running process of the automobile, the damping of the shock absorber can be adaptively changed according to the change of the load and the road condition, so that low-frequency vibration isolation is realized, and the riding comfort of passengers is ensured. The metamaterial vibration isolation device can quickly realize a force-displacement curve with a quasi-zero stiffness section, so that vibration isolation of almost all frequency bands of a low frequency band is realized, the quasi-zero stiffness curves with different heights can be customized according to the load change requirement, and a stable vibration isolation effect is maintained.

Fig. 2 is a block diagram of an electronic device according to one or more embodiments of the present invention.

As shown in fig. 2, the present application further discloses an electronic device, including: the device comprises a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory are communicated with each other through the communication bus; the memory stores a computer program that, when executed by the processor, causes the processor to perform the steps of the metamaterial vibration isolation device design method.

The present application also provides a computer-readable storage medium storing a computer program executable by an electronic device, which is capable of implementing the steps of the metamaterial vibration isolation device design method when the computer program runs on the electronic device.

The communication bus mentioned above for the electronic devices may be a peripheral component interconnect standard (Peripheral Component Interconnect, PCI) bus or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, etc. The communication bus may be classified as an address bus, a data bus, a control bus, or the like. For ease of illustration, the figures are shown with only one bold line, but not with only one bus or one type of bus.

The electronic device includes a hardware layer, an operating system layer running on top of the hardware layer, and an application layer running on top of the operating system. The hardware layer includes hardware such as a central processing unit (CPU, central Processing Unit), a memory management unit (MMU, memory Management Unit), and a memory. The operating system may be any one or more computer operating systems that implement electronic device control via processes (processes), such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system, etc. In addition, in the embodiment of the present invention, the electronic device may be a handheld device such as a smart phone, a tablet computer, or an electronic device such as a desktop computer, a portable computer, which is not particularly limited in the embodiment of the present invention.

The execution body controlled by the electronic device in the embodiment of the invention can be the electronic device or a functional module in the electronic device, which can call a program and execute the program. The electronic device may obtain firmware corresponding to the storage medium, where the firmware corresponding to the storage medium is provided by the vendor, and the firmware corresponding to different storage media may be the same or different, which is not limited herein. After the electronic device obtains the firmware corresponding to the storage medium, the firmware corresponding to the storage medium can be written into the storage medium, specifically, the firmware corresponding to the storage medium is burned into the storage medium. The process of burning the firmware into the storage medium may be implemented by using the prior art, and will not be described in detail in the embodiment of the present invention.

The electronic device may further obtain a reset command corresponding to the storage medium, where the reset command corresponding to the storage medium is provided by the provider, and the reset commands corresponding to different storage media may be the same or different, which is not limited herein.

At this time, the storage medium of the electronic device is a storage medium in which the corresponding firmware is written, and the electronic device may respond to a reset command corresponding to the storage medium in which the corresponding firmware is written, so that the electronic device resets the storage medium in which the corresponding firmware is written according to the reset command corresponding to the storage medium. The process of resetting the storage medium according to the reset command may be implemented in the prior art, and will not be described in detail in the embodiments of the present invention.

For convenience of description, the above devices are described as being functionally divided into various units and modules. Of course, the functions of each unit, module, etc. may be implemented in one or more pieces of software and/or hardware when implementing the present application.

It will be understood by those skilled in the art that all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs unless defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

For the purposes of simplicity of explanation, the methodologies are shown and described as a series of acts, it is to be understood and appreciated by one of ordinary skill in the art that the methodologies are not limited by the order of acts, as some acts may, in accordance with the methodologies, take place in other order or concurrently. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred embodiments, and that the acts are not necessarily required by the embodiments of the invention.

From the above description of embodiments, it will be apparent to those skilled in the art that the present application may be implemented in software plus a necessary general purpose hardware platform. Based on such understanding, the technical solutions of the present application may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, a server or a network device, etc.) to perform the methods described in the embodiments or some parts of the embodiments of the present application.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims (6)

1. The design method of the metamaterial vibration isolation device is characterized by comprising the following steps of:

acquiring target performance curve information;

acquiring the number of final force sampling points according to the target performance curve information;

acquiring basic information of an approximation curve corresponding to the number of the final force sampling points according to the number of the final force sampling points;

obtaining a metamaterial basic unit model;

generating a vibration isolation device three-dimensional model through three-dimensional software according to the basic information of the metamaterial basic unit model and the approximation curve;

the obtaining basic information of the approximation curve corresponding to the number of the final force sampling points according to the number of the final force sampling points comprises the following steps:

acquiring a final sampling point sequence according to the number of the final force sampling points;

performing Fourier forward transformation on the final sampling point sequence to obtain a transformed sequence;

acquiring basic information of an approximation curve according to the transformed sequence;

the metamaterial basic unit model comprises a first multistable magnet structure and a second multistable magnet structure, wherein,

the first multistable magnet structure comprises a first static magnet assembly and a first moving magnet assembly, the first static magnet assembly comprises two groups of first static magnet groups and a first static magnet resin frame (1) at least partially wrapping the two groups of first static magnet groups, the first moving magnet assembly comprises a first moving magnet strip (2) and a first moving magnet resin frame (3) at least partially wrapping the first moving magnet strip (2), one group of static magnet groups is positioned on one side of the first moving magnet strip (2), the other group of static magnet groups is positioned on the other side of the first moving magnet strip (2), and the first moving magnet strip (2) can move in a space formed by the two groups of static magnet groups, wherein each static magnet group comprises a plurality of static magnet strips (4) which are arranged in an equally-spaced mode along the moving direction of the first moving magnet strip;

The second multistable magnet structure comprises two second magnetostatic iron components and a second moving magnet component, the second magnetostatic iron components comprise a magnetostatic iron plate body (5) and a second magnetostatic iron resin frame (6) at least partially wrapping the magnetostatic iron plate body, and the second moving magnet components comprise a moving magnet plate body (7) and a second moving magnet resin frame (8) at least partially wrapping the moving magnet plate body (7); one second magnetostatic iron component is positioned on one side of the movable magnet plate-shaped body (7), the other second magnetostatic iron component is positioned on the other side of the movable magnet plate-shaped body (7), and the movable magnet plate-shaped body (7) can move in a space formed by the two second magnetostatic iron components;

the vibration isolation device manufactured according to the basic information of the metamaterial basic unit model and the approximation curve comprises the following steps:

generating first parameter information of the multistable magnet according to the cosine curve information, wherein one piece of cosine curve information generates first parameter information of the multistable magnet;

generating multistable magnet second parameter information according to constant curve information;

generating a first magnet vibration isolation monomer model through three-dimensional software according to the first parameter information of the multistable magnet and the first multistable magnet structure, and generating a first magnet vibration isolation monomer model through the first parameter information of the multistable magnet;

Generating a second magnet vibration isolation monomer model through three-dimensional software according to the second parameter information of the multistable magnet and a second multistable magnet structure;

generating a bottom plate model through three-dimensional software according to each first magnet vibration isolation monomer model and each second magnet vibration isolation monomer model;

generating a top plate model through three-dimensional software according to each first magnet vibration isolation monomer model and each second magnet vibration isolation monomer model;

assembling the bottom plate model, the top plate model, each first magnet vibration isolation monomer model and each second magnet vibration isolation monomer model in the three-dimensional software, so as to form a three-dimensional model of the vibration isolation device; the first magnet vibration isolation monomer models and the second magnet vibration isolation monomer models are connected in parallel;

the generating the first parameter information of the multistable magnet according to the cosine curve information comprises:

acquiring period information of a magnet cosine curve;

acquiring length parameters and thickness parameters of the first multistable magnet structure according to the period information of the cosine curve of the magnet;

acquiring a cloud picture of a magnet cosine curve amplitude and width parameters and transverse spacing parameters under specified residual magnetic intensity;

Determining width parameters and transverse interval parameters of the first multistable magnet structure according to the amplitude and width parameters of the cosine curve of the magnet, the transverse interval parameter cloud picture, the determined thickness parameters, the determined length parameters and the determined residual magnetic intensity parameters;

determining the magnetic pole attribute of the first multistable magnet structure according to the amplitude positive and negative of the cosine curve of the approximation curve;

and acquiring a vertical distance parameter of the first movable magnet strip and the static magnet strip closest to the first movable magnet strip in the first multistable magnet structure according to the initial force of the cosine curve of the magnet and the initial phase requirement of the cosine curve of the approximation curve.

2. The method for designing a metamaterial vibration isolation device according to claim 1, wherein the obtaining the number of final force sampling points according to the target performance curve information comprises:

acquiring the number of initial force sampling points;

acquiring basic information of an initial approximation curve according to the number of initial force sampling points;

calculating normalized root mean square error of the approximation curve and the target performance curve information according to the basic information of the initial approximation curve;

judging whether the normalized root mean square error of the approximation curve and the target performance curve information is smaller than an error upper limit threshold value, if yes, then

And determining the initial force sampling point number as the final force sampling point number.

3. The method of designing a metamaterial vibration isolation device according to claim 2, wherein the obtaining the number of final force sampling points according to the target performance curve information further comprises:

judging whether the normalized root mean square error of the approximation curve and the target performance curve information is smaller than an error upper limit threshold value, if not, then

Changing the number of force sampling points;

acquiring a modified approximation curve and basic information of the modified approximation curve according to the number of the modified force sampling points;

calculating normalized root mean square error of the modified approximation curve and the target performance curve information according to the basic information of the modified approximation curve;

judging whether the normalized root mean square error of the modified curve and the target performance curve information is smaller than an error upper limit threshold value, if so, then

And determining the number of the changed force sampling points as the number of final force sampling points.

4. The method for designing a metamaterial vibration isolation device according to claim 1, wherein the approximation curve comprises at least one cosine curve and a constant curve;

the basic information of the approximation curve comprises cosine curve information and constant curve information, wherein,

The cosine curve information comprises the number of cosine curves, amplitude information of each cosine curve, period information of each cosine curve and initial phase information of each cosine curve;

the constant curve information comprises the number of constant curves, amplitude information of each constant curve, period information of each constant curve and initial phase information of each constant curve.

5. A method of manufacturing a metamaterial vibration isolation device, the method comprising:

obtaining a three-dimensional model of the vibration isolation device by adopting the metamaterial vibration isolation device design method as claimed in any one of claims 1 to 4;

acquiring a magnet material and a resin material;

and processing the magnet material and the resin material according to the three-dimensional model of the vibration isolation device to manufacture the vibration isolation device.

6. A metamaterial vibration isolation device, wherein the metamaterial vibration isolation device is obtained by manufacturing the metamaterial vibration isolation device according to claim 5.

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