Bamboo-like truss structure

A truss structure, imitating bamboo technology, applied in the direction of truss structure, truss beams, joists, etc., can solve the problems of assembly difficulty, affect the bending stiffness and strength of the structure, and form a smooth surface, so as to improve the stiffness and strength, strengthen the Effects of bending and radial compression resistance
CN102518253BInactive Publication Date: 2013-12-25NORTHWESTERN POLYTECHNICAL UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
NORTHWESTERN POLYTECHNICAL UNIV
Publication Date
2013-12-25
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention relates to a bamboo-like truss structure, which consists of pole units composed of cylindrical busbar pole units, cylindrical spiral curve pole units and spiral broken line pole units along the axial direction of the structure, and pole units formed by connecting the intersection points of the spiral curve pole units and the busbar pole units located in one cross section by straight-line segments along the radial direction of the structure. Specifically, the cylindrical busbar pole units and the spiral curve pole units together ensure a contour as a smooth cylinder; the spiral broken line pole units strengthen the axial compression resistance and the anti-torsion performance of the structure; the radial pole units improve the radial compression resistance and the bending resistance of the structure. The invention is a columnar truss structure with high specific strength and high specific stiffness, and can meet the large span and lightweight demands of the components of modern aerospace vehicles, as well as effectively solves the problems of insufficient stiffness and strength of a columnar truss structure under the condition of a great slenderness ratio.
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Description

technical field

[0001] The invention relates to a columnar imitation bamboo truss structure, which belongs to the technical field of structure design. Background technique

[0002] The imitation bamboo truss structure is a columnar truss structure that is bionically designed by referring to the macroscopic characteristics of natural bamboo. The natural plant bamboo is a kind of bamboo joints distributed along the axial direction, and the radial partition frame of the bamboo joints and the bamboo tube part form a vertically and horizontally related whole structure. Tests have shown that the radial spacers of the bamboo joints can increase the radial bearing capacity of the bamboo tube by three times, greatly improving the rigidity and strength of the structure. The columnar truss structure is a form of truss whose outer contour is columnar. Due to its high specific stiffness and specific strength, the columnar truss structure is widely used in the aerospace field. The repre...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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