Porous Structure Beam Branching for Isotropic Load Resistance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing porous structure design methods lack control over structural and mechanical characteristics, leading to potential breakage under unexpected loads, particularly in applications like implants.
Innovation Solution
A design device and method that generate a porous structure model by branching beams from nodes with controlled beam length, number of branches, and rotation angle, allowing nodes to be joined and transformed into volumes, ensuring isotropic distribution and controlled structural characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a porous structure is designed by fusing cells with struts and nodes, then the porous structure can be manufactured by additive manufacturing, but the structural and mechanical characteristics cannot be controlled
Solution Approach 1:
The invention enables control over structural and mechanical characteristics by allowing users to adjust parameters such as strut thickness, pore size, cell density, and overall geometry. These parameter changes permit customization of the porous structure's mechanical properties while maintaining compatibility with additive manufacturing processes.
2Device complexity
If the porous structure has dependent mechanical characteristics on load direction, then the structure is simplified, but the structure becomes vulnerable to sudden loads from unexpected directions
Solution Approach 1:
The invention introduces asymmetric strut configurations and non-uniform cell distributions to create porous structures that can withstand loads from multiple directions. By strategically arranging struts and cells asymmetrically, the structure achieves enhanced reliability against unexpected loading while maintaining reasonable structural complexity.
Solution Approach 2:
The invention incorporates preliminary reinforcement features such as thicker struts, increased cell density, or pre-stressed configurations in regions likely to experience high loads. This preliminary action strengthens the porous structure against sudden loads from unexpected directions before such loads occur.
3Productivity
If the beam generator creates beams with random characteristics, then the generation process is simple, but the structural isotropy and mechanical performance are compromised
Solution Approach 1:
The beam generator incorporates feedback mechanisms that monitor and adjust beam characteristics in real-time. By using feedback from structural analysis algorithms, the generator automatically adjusts parameters such as beam length, thickness, and orientation to ensure structural isotropy and optimal mechanical performance while maintaining efficient generation speeds.
Data Source
AI summary
A design device (100) includes: a beam generator (152) that repeatedly generates a plurality of new beams branching from a node closer to the leading end of an existing beam while changing at least one of a beam length, the number of branches, or a rotation angle about the axis of the existing beam on the basis of a preset rule so that a plurality of beams included in the network structure of a porous structure are generated in the design space acquired by an acquirer (151); and a node joiner (153) that selects a plurality of nodes that is not directly connected to each other through a beam, among the plurality of nodes generated by the beam generator (152), to join the selected nodes to generate a single node on the basis of a preset rule.