Curved Rod Spatial Lattice for Lightweight Stability
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Solution Overview
Problem
Existing lightweight structures, particularly those designed as spatial lattices, face challenges in achieving sufficient stability and rigidity to handle varying forces and applications, limiting their use to low-force scenarios.
Innovation Solution
A lightweight structure composed of structural units with six support points on a Cartesian coordinate system, connected by continuously concavely curved support rods forming a cuboid cluster with a flat outer shell and circular hole pattern, optimized for force dissipation and weight reduction, allowing for increased stability and broader application ranges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of stationary object
If lightweight material is used to reduce weight, then weight is reduced, but stability becomes insufficient
Solution Approach 1:
The structure is divided into multiple structural units, each consisting of six support points and support rods forming octahedral substructures. These modular units are connected to form a lattice that provides both weight reduction and stability through distributed load bearing
Solution Approach 2:
The invention creates a composite structure combining lightweight support rods with a spatial lattice configuration. The lattice pattern itself acts as a composite system where the arrangement of elements provides structural stability that compensates for the lightweight nature of individual components
2Weight of stationary object
If material leanings are applied to reduce weight, then weight is reduced, but stability becomes insufficient for high-force applications
Solution Approach 1:
The invention transitions from two-dimensional material thinning to a three-dimensional spatial lattice structure. By distributing material across three dimensions with support points at vertices and rods along edges, the structure achieves superior strength-to-weight ratio capable of handling high forces in multiple directions
3Stability of the object's composition
If conventional spatial lattice structures are used, then stability is improved, but weight reduction is limited
Solution Approach 1:
The support rods are designed with continuously concavely curved geometry rather than straight lines. This curvature optimizes force flow through the structure, allowing more efficient load distribution and enabling greater weight reduction while maintaining stability compared to conventional straight-rode lattice structures
4Ease of manufacture
If straight support rods are used in lattice structures, then manufacturing is simplified, but force flow and stability are suboptimal
Solution Approach 1:
The support rods feature continuously concavely curved geometry that optimizes force flow paths. The curved shape allows forces to follow more natural stress trajectories through the material, improving force dissipation efficiency and overall structural stability while maintaining manufacturability through standardized curved profiles
Data Source
Figure 1~2
AI summary
The structure (11) has structure unit (12) including six supporting points (13a-13f), which lie on three coordinate axes of a Cartesian coordinate system stretched by X, Y and Z coordinates in pairs such that the points lying on the same axes are arranged with an equal distance on both sides of the coordinate system. Each point is tension- and pressure-resistantly connected with the other points by support bars (14) such that a support frame (15) is formed in each plane stretched from the two axes. The frame is composed of the four bars connected with each other at the points.