技术领域Technical field
本发明涉及负泊松比超材料结构技术领域，更具体的说是涉及一种基于张拉结构的负泊松比超材料胞元结构。The present invention relates to the technical field of negative Poisson's ratio metamaterial structures, and more specifically to a negative Poisson's ratio metamaterial cell structure based on a tensile structure.
背景技术Background technique
负泊松比超材料作为机械超材料的一个重要分支，由于其具有负泊松比效应，可以使材料的剪切模量、断裂韧性、热冲击强度、压痕阻力等力学性能得到增强，已成为备受关注的新材料。而超材料作为一种非自然生成的材料，其性能取决于材料的结构特征，而不是材料的化学成分。As an important branch of mechanical metamaterials, negative Poisson's ratio metamaterials have a negative Poisson's ratio effect, which can enhance the material's mechanical properties such as shear modulus, fracture toughness, thermal shock strength, and indentation resistance. become a new material that attracts much attention. As a kind of non-naturally occurring material, the performance of metamaterials depends on the structural characteristics of the material rather than the chemical composition of the material.
目前提出了多种实现负泊松比特性的超材料胞元结构，但是均存在几何和拓扑形状设计不合理情况，主要表现在自稳定性差，刚性、力学性能有待提升。At present, a variety of metamaterial cell structures have been proposed to achieve negative Poisson's ratio characteristics, but all of them have unreasonable geometric and topological shape designs, which are mainly manifested in poor self-stability and rigidity and mechanical properties that need to be improved.
因此，提供一种提升力学性能的基于张拉结构的负泊松比超材料胞元结构是本领域技术人员亟需解决的问题。Therefore, providing a negative Poisson's ratio metamaterial cell structure based on a tensile structure that improves mechanical properties is an urgent problem that those skilled in the art need to solve.
发明内容Contents of the invention
有鉴于此，本发明提供了一种基于张拉结构的负泊松比超材料胞元结构，兼具可编程性、稳定性和刚度可调特点。In view of this, the present invention provides a negative Poisson's ratio metamaterial cell structure based on a tensile structure, which has the characteristics of programmability, stability and adjustable stiffness.
为了实现上述目的，本发明采用如下技术方案：In order to achieve the above objects, the present invention adopts the following technical solutions:
一种基于张拉结构的负泊松比超材料胞元结构，包括三叉杆组件、三个弹性连杆组件和三个第一弹簧，三个所述弹性连杆组件沿所述三叉杆组件周向均匀分布，且每个所述弹性连杆组件端部均与所述三叉杆组件端部转动连接；每个所述弹性连杆组件中部均与所述三叉杆组件中部通过所述第一弹簧连接。A negative Poisson's ratio metamaterial cell structure based on a tension structure, including a trident rod assembly, three elastic link assemblies and three first springs. The three elastic link assemblies are along the circumference of the trident rod assembly. Evenly distributed in the direction, and the end of each elastic link assembly is rotationally connected with the end of the three-pronged rod assembly; the middle part of each elastic link assembly and the middle part of the three-pronged rod assembly are connected through the first spring connect.
通过采取以上方案，本发明的有益效果是：By adopting the above solutions, the beneficial effects of the present invention are:
利用张拉整体结构质量轻、自稳定、自适应和刚度可调的特点，与超材料胞元结构结合，能够提升刚性和自稳定性，改善力学性能。Utilizing the characteristics of the tensegrity structure, which is lightweight, self-stabilizing, adaptive and stiffness-adjustable, and combined with the metamaterial cellular structure, the rigidity and self-stability can be improved, and the mechanical properties can be improved.
进一步的，所述三叉杆组件包括上下平行且交叉分布的第一三叉杆和第二三叉杆，所述第一三叉杆中部与所述第二三叉杆中部转动连接，形成第一中心转动点；三个所述弹性连杆组件的一端部分别与所述第一三叉杆的三个第一支杆件端部转动连接，三个所述弹性连杆组件的另一端部分别与所述第二三叉杆的三个第二支杆件端部转动连接；三个所述弹性连杆组件中部分别通过三个所述第一弹簧与所述第一中心转动点连接。Further, the trident rod assembly includes a first trident rod and a second trident rod that are parallel and cross-distributed up and down. The middle part of the first trident rod is rotationally connected to the middle part of the second trident rod to form a first trident rod. Center rotation point; one end of the three elastic link assemblies is rotatably connected to the ends of the three first support members of the first trifurcated rod, and the other ends of the three elastic link assemblies are respectively It is rotationally connected to the ends of the three second strut members of the second trifurcated rod; the middle parts of the three elastic link assemblies are respectively connected to the first central rotation point through three first springs.
进一步的，相邻分布的所述第一支杆件和所述第二支杆件之间呈60°夹角。Further, an included angle of 60° is formed between the adjacently distributed first support members and the second support members.
进一步的，所述弹性连杆组件包括第一连杆、第二连杆、两个第二弹簧和两个第三弹簧，所述第一连杆和所述第二连杆上下平行且交叉分布，且所述第一连杆中部与所述第二连杆中部转动连接，形成第二中心转动点；所述第一连杆端部与靠近其的所述第二连杆端部通过所述第二弹簧连接，所述第一连杆端部与远离其的所述第二连杆端部通过所述第三弹簧连接；三个所述第一支杆件端部分别与三个所述第一连杆的一端部转动连接，三个所述第二支杆件端部分别与三个所述第二连杆的一端部转动连接；三个所述第二中心转动点分别通过三个所述第一弹簧与所述第一中心转动点连接。Further, the elastic link assembly includes a first link, a second link, two second springs and two third springs. The first link and the second link are parallel and cross-distributed up and down. , and the middle part of the first connecting rod and the middle part of the second connecting rod are rotationally connected to form a second central rotation point; the end of the first connecting rod and the end of the second connecting rod close to it pass through the The second spring is connected, and the first connecting rod end and the second connecting rod end far away from it are connected through the third spring; the three first strut member ends are respectively connected with the three said One end of the first connecting rod is rotationally connected, and the ends of the three second support rods are rotationally connected with one end of the three second connecting rods respectively; the three second center rotation points are respectively connected by three The first spring is connected to the first central rotation point.
采用上述进一步的技术方案产生的有益效果为，三个弹性连杆组件结构在受到不同方向的力时，能互相限制在轴线方向的转动，使结构更加稳定，并且在三组不同弹性系数的弹簧约束下，总会在一个位置达到平衡状态，提高自稳定性。The beneficial effect of adopting the further technical solution mentioned above is that when the three elastic link assembly structures are subjected to forces in different directions, they can mutually restrict the rotation in the axial direction, making the structure more stable, and the three sets of springs with different elastic coefficients can Under constraints, an equilibrium state will always be reached at one position, improving self-stability.
进一步的，所述第一连杆和所述第二连杆之间夹角呈60°。Further, the angle between the first connecting rod and the second connecting rod is 60°.
进一步的，所述第一三叉杆中部与所述第二三叉杆中部，所述第一连杆中部与所述第二连杆中部，所述第一支杆件端部与所述第一连杆端部，以及所述第二支杆件端部与所述第二连杆端部均通过销连接。Further, the middle part of the first trident rod and the middle part of the second trident rod, the middle part of the first connecting rod and the middle part of the second connecting rod, the end part of the first support member and the third One connecting rod end, and the second support rod end and the second connecting rod end are all connected by pins.
附图说明Description of the drawings
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据提供的附图获得其他的附图。In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only These are embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without exerting creative efforts.
图1附图为本发明提供的一种基于张拉结构的负泊松比超材料胞元结构的轴侧视图；Figure 1 is an axial side view of a negative Poisson's ratio metamaterial cell structure based on a tensile structure provided by the present invention;
图2附图为本发明提供的一种基于张拉结构的负泊松比超材料胞元结构的主视图。Figure 2 is a front view of a negative Poisson's ratio metamaterial cell structure based on a tensile structure provided by the present invention.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.
如图1-2所示，本发明实施例公开了一种基于张拉结构的负泊松比超材料胞元结构，包括三叉杆组件1、三个弹性连杆组件2和三个第一弹簧3，三个弹性连杆组件2均呈长方形，三个弹性连杆组件2沿三叉杆组件1周向均匀分布，两两之间呈120°，且每个弹性连杆组件2端部均与三叉杆组件1端部转动连接；每个弹性连杆组件2中部均与三叉杆组件1中部通过第一弹簧3连接。本发明利用形成的两杆四索和四杆两索张拉整体结构质量轻、自稳定、自适应和刚度可调的特点，与超材料胞元结构结合，能够提升刚性和自稳定性，改善力学性能。As shown in Figures 1-2, the embodiment of the present invention discloses a negative Poisson's ratio metamaterial cell structure based on a tension structure, including a trident rod assembly 1, three elastic link assemblies 2 and three first springs 3. The three elastic link assemblies 2 are all rectangular. The three elastic link assemblies 2 are evenly distributed along the circumferential direction of the trident rod assembly 1, with an angle of 120° between each pair, and the end of each elastic link assembly 2 is in contact with the trident rod assembly 1. The ends of the trident rod assembly 1 are rotationally connected; the middle part of each elastic link assembly 2 is connected to the middle part of the trident rod assembly 1 through the first spring 3 . The invention utilizes the characteristics of the formed two-rod-four-cable and four-rod-two-cable tensioned integral structures to be lightweight, self-stabilizing, adaptive and stiffness-adjustable. Combined with the metamaterial cell structure, it can improve rigidity and self-stability and improve mechanical properties.
具体的，三叉杆组件1包括上下平行且交叉分布的第一三叉杆11和第二三叉杆12，第一三叉杆11中部与第二三叉杆12中部转动连接，形成第一中心转动点4；三个弹性连杆组件2的一端部分别与第一三叉杆11的三个第一支杆件端部转动连接，三个弹性连杆组件2的另一端部分别与第二三叉杆12的三个第二支杆件端部转动连接，在本实施例中，相邻分布的第一支杆件和第二支杆件之间呈60°夹角；三个弹性连杆组件2中部分别通过三个第一弹簧3与第一中心转动点4连接，三个弹性连杆组件2结构在受到不同方向的力时，能互相限制在轴线方向的转动，使结构更加稳定。Specifically, the trident rod assembly 1 includes a first trident rod 11 and a second trident rod 12 that are parallel and cross-distributed up and down. The middle part of the first trident rod 11 and the middle part of the second trident rod 12 are rotationally connected to form a first center. Rotation point 4; one end of the three elastic link assemblies 2 is rotatably connected to the ends of the three first struts of the first trifurcated rod 11, and the other end of the three elastic link assemblies 2 is respectively connected to the second The ends of the three second support members of the trident rod 12 are rotationally connected. In this embodiment, an included angle of 60° is formed between the adjacently distributed first support members and the second support members; the three elastic connections are The middle part of the rod assembly 2 is connected to the first center rotation point 4 through three first springs 3 respectively. When the three elastic link assembly 2 structures receive forces in different directions, they can mutually restrict rotation in the axis direction, making the structure more stable. .
具体的，弹性连杆组件2包括第一连杆21、第二连杆22、两个第二弹簧23和两个第三弹簧24，第一连杆21和第二连杆22上下平行且交叉分布，且第一连杆21中部与第二连杆22中部转动连接，形成第二中心转动点5，在本实施例中，第一连杆21和第二连杆22之间夹角呈60°；第一连杆21端部与靠近其的第二连杆22端部通过第二弹簧23连接，第一连杆21端部与远离其的第二连杆22端部通过第三弹簧24连接；三个第一支杆件端部分别与三个第一连杆21的一端部转动连接，三个第二支杆件端部分别与三个第二连杆22的一端部转动连接；三个第二中心转动点5分别通过三个第一弹簧3与第一中心转动点4连接，第一弹簧3、第二弹簧23和第三弹簧24均为挂钩弹簧。在本实施例中，第一弹簧3、第二弹簧23和第三弹簧24的弹性系数不同，从而在三组不同弹性系数的弹簧约束下，总会在一个位置达到平衡状态，提高自稳定性。Specifically, the elastic link assembly 2 includes a first link 21, a second link 22, two second springs 23 and two third springs 24. The first link 21 and the second link 22 are parallel and intersecting up and down. distributed, and the middle part of the first connecting rod 21 and the middle part of the second connecting rod 22 are rotationally connected to form the second central rotation point 5. In this embodiment, the angle between the first connecting rod 21 and the second connecting rod 22 is 60° °; The end of the first connecting rod 21 and the end of the second connecting rod 22 close to it are connected through a second spring 23, and the end of the first connecting rod 21 and the end of the second connecting rod 22 far away from it are connected through a third spring 24 Connection; the ends of the three first strut members are rotatably connected to one end of the three first connecting rods 21, and the ends of the three second strut members are rotatably connected to one end of the three second connecting rods 22; The three second center rotation points 5 are respectively connected to the first center rotation point 4 through three first springs 3. The first springs 3, the second spring 23 and the third spring 24 are all hook springs. In this embodiment, the elastic coefficients of the first spring 3 , the second spring 23 and the third spring 24 are different, so that under the constraints of three sets of springs with different elastic coefficients, an equilibrium state will always be reached at one position, improving self-stability. .
具体的，第一三叉杆11中部与第二三叉杆12中部，第一连杆21中部与第二连杆22中部，第一支杆件端部与第一连杆21端部，以及第二支杆件端部与第二连杆22端部均通过销连接。Specifically, the middle part of the first trident rod 11 and the middle part of the second trident rod 12, the middle part of the first connecting rod 21 and the middle part of the second connecting rod 22, the end part of the first support member and the end part of the first connecting rod 21, and The end of the second support rod and the end of the second connecting rod 22 are both connected by pins.
本说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似部分互相参见即可。对于实施例公开的装置而言，由于其与实施例公开的方法相对应，所以描述的比较简单，相关之处参见方法部分说明即可。Each embodiment in this specification is described in a progressive manner. Each embodiment focuses on its differences from other embodiments. The same and similar parts between the various embodiments can be referred to each other. As for the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple. For relevant details, please refer to the description in the method section.
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下，在其它实施例中实现。因此，本发明将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be practiced in other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311023090.1ACN117189807A (en) | 2023-08-15 | 2023-08-15 | Negative poisson ratio metamaterial cell structure based on tension structure |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311023090.1ACN117189807A (en) | 2023-08-15 | 2023-08-15 | Negative poisson ratio metamaterial cell structure based on tension structure |
| Publication Number | Publication Date |
|---|---|
| CN117189807Atrue CN117189807A (en) | 2023-12-08 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311023090.1APendingCN117189807A (en) | 2023-08-15 | 2023-08-15 | Negative poisson ratio metamaterial cell structure based on tension structure |
| Country | Link |
|---|---|
| CN (1) | CN117189807A (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117537027A (en)* | 2023-12-26 | 2024-02-09 | 长春工业大学 | A negative stiffness bistable metamaterial cell structure based on tensile structure |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020150697A1 (en)* | 2000-08-21 | 2002-10-17 | Swager Timothy M. | Polymers with high internal free volume |
| US20130322955A1 (en)* | 2011-10-13 | 2013-12-05 | Zheng-Dong Ma | Rapidly deployable structures based upon negative poisson's ratio (npr) auxetic components |
| CN106541568A (en)* | 2016-10-31 | 2017-03-29 | 常州工学院 | A kind of three-dimensional negative poisson's ratio periodic porous material and preparation method thereof |
| CN107321984A (en)* | 2017-07-25 | 2017-11-07 | 北京航空航天大学 | A kind of three-dimensional controllable auxetic Multi cell structure based on 3D printing |
| CN111559735A (en)* | 2020-05-22 | 2020-08-21 | 西安理工大学 | Negative Poisson ratio structure based on rotary rod unit |
| CN114013027A (en)* | 2021-11-04 | 2022-02-08 | 西南大学 | Construction method of strong-stability negative Poisson ratio structure |
| CN216715096U (en)* | 2022-01-04 | 2022-06-10 | 西南石油大学 | Three-node auxetic open pore structure with negative Poisson ratio |
| CN218670360U (en)* | 2022-12-09 | 2023-03-21 | 广州大学 | Torsion negative Poisson ratio lattice structure based on minimum curved surface |
| CN116165851A (en)* | 2023-03-06 | 2023-05-26 | 中国科学院光电技术研究所 | A negative Poisson's ratio structure lens fine-tuning device |
| CN116292712A (en)* | 2023-03-17 | 2023-06-23 | 吉林大学 | A Negative Poisson's Ratio Metamaterial Structure with Biomimetic Structure |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020150697A1 (en)* | 2000-08-21 | 2002-10-17 | Swager Timothy M. | Polymers with high internal free volume |
| US20130322955A1 (en)* | 2011-10-13 | 2013-12-05 | Zheng-Dong Ma | Rapidly deployable structures based upon negative poisson's ratio (npr) auxetic components |
| CN106541568A (en)* | 2016-10-31 | 2017-03-29 | 常州工学院 | A kind of three-dimensional negative poisson's ratio periodic porous material and preparation method thereof |
| CN107321984A (en)* | 2017-07-25 | 2017-11-07 | 北京航空航天大学 | A kind of three-dimensional controllable auxetic Multi cell structure based on 3D printing |
| CN111559735A (en)* | 2020-05-22 | 2020-08-21 | 西安理工大学 | Negative Poisson ratio structure based on rotary rod unit |
| CN114013027A (en)* | 2021-11-04 | 2022-02-08 | 西南大学 | Construction method of strong-stability negative Poisson ratio structure |
| CN216715096U (en)* | 2022-01-04 | 2022-06-10 | 西南石油大学 | Three-node auxetic open pore structure with negative Poisson ratio |
| CN218670360U (en)* | 2022-12-09 | 2023-03-21 | 广州大学 | Torsion negative Poisson ratio lattice structure based on minimum curved surface |
| CN116165851A (en)* | 2023-03-06 | 2023-05-26 | 中国科学院光电技术研究所 | A negative Poisson's ratio structure lens fine-tuning device |
| CN116292712A (en)* | 2023-03-17 | 2023-06-23 | 吉林大学 | A Negative Poisson's Ratio Metamaterial Structure with Biomimetic Structure |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117537027A (en)* | 2023-12-26 | 2024-02-09 | 长春工业大学 | A negative stiffness bistable metamaterial cell structure based on tensile structure |
| Publication | Publication Date | Title |
|---|---|---|
| CN117189807A (en) | Negative poisson ratio metamaterial cell structure based on tension structure | |
| CN108895108B (en) | A kind of auxetic multicellular configuration and energy-absorbing structural component | |
| CN207386914U (en) | Suitable for the mechanical processing platform of irregular shape part | |
| CN102508347B (en) | Passive radial supporting mechanism for primary mirror of optical telescope based on kinetic equilibrium | |
| CN106564621B (en) | It is a kind of to realize the X-type section boom for collapsing expansion function | |
| CN102962837A (en) | Easy-to-control symmetric parallel mechanism with two rotating pairs and one moving pair | |
| CN116771836B (en) | Negative poisson ratio metamaterial cell structure based on two-rod two-cable tension structure | |
| CN104088361A (en) | Super-elastic tension structure of octahedral unit truss | |
| CN105333296B (en) | Negative poisson's ratio honeycomb based on the deployable post shell bar of bistable state composite | |
| CN106426094B (en) | A Four Degrees of Freedom Parallel Mechanism | |
| CN107643552B (en) | Single-phase lattice structures and materials thereof with zero/low thermal expansion properties | |
| CN114523662B (en) | A three-dimensional metamaterial functional component and its manufacturing method | |
| CN204650079U (en) | Brand-new multi-directionally is opened and 360 ° of slingshot glasses rotated | |
| CN204474815U (en) | A kind of insulation fibre of imitative natural down | |
| TWI746285B (en) | Tube adapted to support frame of child carriage, support frame, and child carriage | |
| CN107916741B (en) | Reticulated shell roof reinforcement device | |
| CN207303443U (en) | A kind of semiclosed leaf spring jack contact | |
| CN115823174B (en) | Multilayer tension structure damping platform mechanism with negative stiffness characteristic | |
| CN102349019B (en) | Rotation mechanism for eyeglasses and eyeglasses having the same | |
| CN113488120B (en) | A two-dimensional metamaterial structure with a large adjustable range of thermal expansion coefficient | |
| CN216400555U (en) | A three-dimensional negative Poisson's ratio structure suitable for 3D printing | |
| CN208450928U (en) | A kind of mechanical arm position-changing clamp | |
| CN108397684B (en) | Dual stiffness structure | |
| CN219035238U (en) | An assembly structure of connecting rods | |
| CN209320615U (en) | Connection structure between transverse leaf spring and suspension swing arm |
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |