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double stiffness structure

A dual-stiffness and rigidity technology, applied in the field of dual-stiffness structures, can solve the problems of different stiffnesses and large-scale load changes that cannot provide deformation, etc.

Inactive Publication Date: 2020-11-03
SHANGHAI JIAOTONG UNIV
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  • Description
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Problems solved by technology

[0004] Aiming at the problem that the existing single-stiffness material cannot provide suitable deformation in the face of a wide range of load changes, the present invention proposes a dual-stiffness intelligent structure, which has two deformation modes and exhibits different stiffnesses in the two modes

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Embodiment Construction

[0023] Such as figure 1 As shown, there are four kinds of dual-rigidity intelligent structures described in the present invention, which are six-fold rotational symmetry movable structure MS-6, eight-fold rotational symmetry movable structure MS-8, and ten-fold rotational symmetry movable structure MS-8. -10. Twelve-fold rotational symmetry movable structure MS-12.

[0024] Such as figure 1 As shown in a, it is a structural unit of the MS-6 dual-stiffness intelligent structure, in which different parts are represented by different line styles, including six MS-6 peripheral diamond-shaped connecting rods 1 combination, two (solid and dashed lines) MS-6 central scissor link 2 combination, a MS-6 rotary spring 3; as figure 1 As shown in the dotted box in a, each MS-6 peripheral rhombic link 1 combination has four nodes, each MS-6 central scissor link 2 combination has three branches and four nodes, and two MS-6 The central scissor link 2 combination is rotatably connected thro...

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Abstract

A dual-rigidity intelligent structure is composed of a plurality of structure units. Each structure unit comprises two center shear type connecting rod combinations concentrically rotationally connected and a plurality of periphery rhombus connecting rod combinations, wherein the two center shear type connecting rod combinations are movably connected through a rotation spring, the branch tail endof each center shear type connecting rod combination is rotationally connected with one end joint of one periphery rhombus connecting rod combination, and the other two opposite end joints of each periphery rhombus connecting rod combination are rotationally connected with the end joints of the corresponding adjacent periphery rhombus connecting rod combinations on the two sides. The dual-rigidityintelligent structure has two deformation modes and shows different rigidities in the two modes.

Description

technical field [0001] The invention relates to a technology in the field of material structures, in particular to a double-rigidity structure. Background technique [0002] The stiffness of a material is one of its most important properties, reflecting the degree of deformation of a material under load. Due to different application fields, the requirements for the stiffness of materials are also different. For example, in the field of infrastructure construction, it is generally desirable for materials to have high strength, so as to minimize deformation and avoid building collapse when bearing large loads; while in the fields of shock absorption and buffering, it is desirable for materials to have relatively low stiffness, which is relatively low. Large deformation, to convert the kinetic energy of the target into the deformation energy of the material, and enhance the effect of shock absorption and cushioning. [0003] However, in some cases, due to the large range of l...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16S3/08
CPCF16S3/08
Inventor 崔志铭朱宰亨
Owner SHANGHAI JIAOTONG UNIV
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