Honeycomb Structure Orthogonal Segments Isostatic Strength
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Solution Overview
Problem
Conventional segmented structured honeycomb structures with hexagonal cell shapes exhibit low isostatic strength, making them prone to breakage when stored in a can body under compressive surface pressure.
Innovation Solution
A honeycomb structure comprising prismatic columnar segments with a bonding layer and a circumferential wall, where the segments have hexagonal cells with varying shapes, sizes, and arrangement directions, and the extended lines of diagonal lines in different segments are orthogonal, improving mechanical strength and stress distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If honeycomb segments with hexagonal cell shape are used, then the structure is simple and easy to manufacture, but the isostatic strength is low causing breakage during canning
Solution Approach 1:
The patent introduces asymmetry by arranging honeycomb segments with different orientations. Specifically, segments are arranged such that the extended lines of diagonal lines of hexagonal cells in adjacent segments form angles of 60° or 120° rather than being parallel, creating an asymmetric stress distribution pattern that enhances overall structural strength while maintaining hexagonal cell geometry
Solution Approach 2:
The honeycomb structure is divided into multiple segments that are bonded together. This segmentation allows each segment to be manufactured separately with standard hexagonal cells, while the bonding of multiple segments with different orientations creates a composite structure with superior isostatic strength compared to a single monolithic segment
2Reliability
If compressive surface pressure is applied during canning, then the honeycomb structure is held securely in the can body, but segments with hexagonal cell shape break due to low isostatic strength
Solution Approach 1:
The patent creates a composite honeycomb structure by bonding multiple segments with different orientations. This composite construction distributes the compressive surface pressure applied during canning across multiple segments with varying orientations, preventing stress concentration at single points and thereby preventing breakage while maintaining secure holding in the can body
Data Source
AI summary
A honeycomb structure includes a plurality of prismatic columnar shaped honeycomb segments; a bonding layer bonding side faces of the honeycomb segments; and a circumferential wall disposed to surround a honeycomb segment bonded body having the honeycomb segments arranged in a grid pattern and bonded with the bonding layer, wherein the honeycomb segments has a porous partition wall disposed to surround a plurality of cells, the cells in other than outermost circumference have a hexagonal shape in a section orthogonal to the cell extending direction, the honeycomb segments include first and second honeycomb segment, the second honeycomb segment is different from the first in at least one of: a shape in the section; a size; and an arrangement direction of the cells and an extended line of one diagonal line imaginarily depicted in the cells in the first honeycomb segment and that in the second are configured to be orthogonal.