Quasi-Cylindrical Cargo Container Structure for Higher Volume
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Solution Overview
Problem
Cylindrical cargo containers have limited volumetric capacity due to width restrictions imposed by regulations, resulting in a lower capacity compared to conventional rectangular containers for the same length.
Innovation Solution
A quasi-cylindrical cargo container design is formed from curved longitudinal panels with flat longitudinal extension panels, creating a double-U cross-section that increases the vertical height while maintaining the cylindrical shape, allowing for a variable height adjustment within regulatory width limits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a conventional cylindrical container is used, then aerodynamic efficiency is improved, but volumetric capacity is limited due to width restrictions
Solution Approach 1:
The patent transitions from a conventional two-dimensional cylindrical cross-section to a three-dimensional quasi-cylindrical shape by adding flat longitudinal extension panels that create a double-U cross-section. This dimensional change allows the container to increase vertical height while maintaining the aerodynamic benefits of the curved cylindrical portions, thereby resolving the contradiction between volumetric capacity and cylindrical shape constraints.
2Volume of moving object
If the container height is increased to improve volumetric capacity, then more structural members are required, increasing device complexity
Solution Approach 1:
The patent merges the structural and cargo-containing functions by making the flat longitudinal extension panels load-bearing elements. These panels are integrated into the container structure itself, serving both as part of the cargo-holding boundary and as structural reinforcement, thereby reducing the need for separate structural members while achieving increased height and volume.
3Volume of moving object
If flat longitudinal extension panels are added to increase height, then volumetric capacity is improved, but manufacturing complexity increases
Solution Approach 1:
The patent segments the container into distinct modular components: curved cylindrical panels and flat longitudinal extension panels. This segmentation allows each component to be manufactured independently using optimized processes for its specific geometry, then assembled together. The modular approach simplifies manufacturing by enabling specialized production methods for each segment rather than requiring complex monolithic construction.
Data Source
AI summary
A quasi-cylindrical cargo container is formed of a plurality of rigid, curved panels together forming first and second semi-cylindrical shells, and a plurality of rigid, flat extension panels bridging the first and second semi-cylindrical shells. A method of manufacturing the container includes forming the first and second semi-cylindrical shell from the curved panels, forming the quasi-cylindrical shell from the first and second semi-cylindrical shells and the flat extension panels, forming collars conformably encompassing the quasi-cylindrical shell, constricting the collars to compress joints formed at abutting edges of pairs of adjacent panels, rolling the shell and collars sequentially to bring the joints to a lower position, welding inside seams of the joints when at the lower position, removing the collars, rolling the shell sequentially to bring the joints to an upper position, and welding outside seams of the joints when at the upper position.