Offset Core Device Deploying Flat Panels to 3D Truss Structure
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Solution Overview
Problem
Existing technologies lack a compact and deployable structural solution that can efficiently transition from a flat, two-dimensional state to a high-strength, three-dimensional structure capable of withstanding significant loads while maintaining ease of storage and transportation.
Innovation Solution
The development of an offset core device featuring a composite core with a three-dimensional truss structure that can collapse into a flat stack and expand into a high-strength 3D configuration, utilizing a network of parallel creases and transverse cuts in a planar material, and deployable via a corrugation-less process using a 3D printer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a traditional solid core structure is used, then structural strength is maintained, but storage and transportation efficiency deteriorates due to large volume requirements
Solution Approach 1:
The core structure is divided into multiple modular units that can be collapsed into compact forms for storage and transportation, yet assembled into strong 3D structures when deployed. Each module contains truss elements that can be folded flat but form rigid geometric shapes when erected, enabling the core to transition between compact and load-bearing states.
Solution Approach 2:
The core structure utilizes a transformable geometry that transitions from a two-dimensional flat configuration for storage to a three-dimensional expanded configuration for load-bearing applications. This dimensional transformation allows the same material to occupy minimal space during transport while providing substantial structural volume and strength when deployed.
2Volume of moving object
If a collapsible structure is used to reduce storage volume, then storage efficiency is improved, but structural strength deteriorates
Solution Approach 1:
The core structure is designed with dynamic characteristics, allowing it to transition between collapsed and expanded states. The structure incorporates movable joints and flexible connections that enable transformation while maintaining structural integrity in both configurations. When expanded, the same elements form rigid load-bearing frameworks.
Solution Approach 2:
The core utilizes composite construction combining rigid truss elements with flexible connecting components. This composite approach allows individual elements to be strong when assembled in 3D configuration while enabling the overall structure to collapse flat for storage. The combination of rigid and flexible components resolves the strength-volume contradiction.
3Strength
If a complex 3D truss structure is deployed, then load-bearing capacity is improved, but manufacturing complexity worsens
Solution Approach 1:
The truss structure is pre-configured with crease patterns and fold lines during manufacturing, allowing the complex 3D geometry to be formed through simple flat-folding operations. The intricate 3D shape is predetermined in the 2D layout, so deployment requires only following the pre-marked fold lines rather than assembling complex joints or making precise 3D adjustments.
Solution Approach 2:
The manufacturing process replaces traditional mechanical assembly operations (bolting, welding, or complex joining) with a simplified folding mechanism. The structure is formed by creating creases and folds in a flat sheet or panel, then deploying it into the 3D configuration. This substitution of assembly methodology dramatically reduces manufacturing complexity while maintaining structural integrity.
Data Source
AI summary
An offset core device configured to form a high-strength truss structure, and a method for making the offset core device. The device includes a plurality of panels, each panel having a network of a first plurality of truss segments and a second plurality of truss segments, each formed along a first direction. The plurality of panels also include a first joint and a second joint formed along a second direction that is perpendicular to the first direction, and at least one cut line formed along the first direction between the first plurality of truss segments and the second plurality of truss segments. The plurality of panels are configured to deploy to a truss structure by at least one of the first plurality of truss segments pivoting at the first joint, and at least one of the second plurality of truss segments pivoting at the second joint, wherein the first joint is offset from the second joint along the first direction.