Tensegrity structure similar to truncated tetrahedron

Abstract

The invention aims at providing a tensegrity structure similar to a truncated tetrahedron. The shape of the tensegrity structure is obtained by cutting small regular tetrahedrons from four corners of a regular tetrahedron, wherein the edge length of the small regular tetrahedrons accounts for 1 / 3 of the existing edge length. The tensegrity structure is composed of 12 joints, 18 inhaul cables and 6 pressing rods. The 12 joints are located at vertexes of the truncated tetrahedron and distributed on a spherical face, namely, a circumscribed sphere of the truncated tetrahedron, wherein the radius of the circumscribed sphere is 1.1726 times of the cable length. The 18 inhaul cables are distributed on the edges of the truncated tetrahedron, and the 6 pressing rods are located in the truncated tetrahedron. Each joint is connected with the three corresponding inhaul cables and the corresponding pressing rod. All the inhaul cables are equal in length, and all the pressing rods are equal in length. All the joints are hinge points, all the inhaul cables have pretension force, and all the pressing rods have precompression force. The pretension force of the inhaul cables and the precompression force of the pressing rods are balanced. The tensegrity structure is larger in bearing capacity, can bear stuff in multiple directions and can achieve more functions.

Description

technical field [0001] The present invention relates to a tensegrity structure. Background technique [0002] The tensegrity structure is a prestressed self-balancing system composed of compression rods and tension cables. The stiffness of this type of structure is provided by prestress, and the internal forces of the components are self-balanced. Once the prestress is lost, the structure will not be stable. re-established. The tensegrity structure has the advantages of light weight, large span, and beautiful shape, and has attracted extensive attention from academic and engineering circles. [0003] Since the tensegrity structure is a prestressed self-balancing system, the connection relationship between its node position and components must meet the prestressed self-balancing conditions, and the geometric shape cannot be arbitrarily constructed like other structural systems. Therefore, existing tensegrity structures generally have irregular geometric shapes. In the pate...

AI Technical Summary

Problems solved by technology

This structure can be transformed into other structures through topological transformation, but due to the simple configuration of this structure, the resulting structure type is relatively simple

Currently, there are no tensegrity structures with the shape of truncated tetrahedron or truncated tetrahedron-like

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