Container Dome Profile for Controlled Deformation Resistance
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Solution Overview
Problem
Traditional dome profiles in metal containers require a minimum depth for structural integrity and internal pressure resistance, leading to increased material consumption and weight, limiting weight reduction and material savings while maintaining performance metrics.
Innovation Solution
A novel dome profile design with unique geometric formations that reduce the inner dome depth and pulldown consumption, incorporating a centrally positioned initial deformation panel with buttressing structures for controlled sequential deformation, allowing for reduced material usage and increased strength, enabling the use of softer alloys and lower starting gauges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional dome profile depth is increased to improve structural integrity and internal pressure resistance, then strength is improved, but material consumption and weight increase
Solution Approach 1:
The dome profile is segmented into multiple functional zones including a deformation-resistant zone with increased thickness, a transition zone, and a standard thickness zone. This segmentation allows the structure to concentrate material where needed for strength while reducing material in less critical areas, resolving the contradiction between strength and weight.
Solution Approach 2:
The dome profile implements local quality variations through non-uniform thickness distribution, where the wall thickness is increased locally in the deformation-resistant zone to provide enhanced structural integrity and pressure resistance, while other zones maintain standard or reduced thickness to minimize overall material consumption and weight.
2Reliability
If traditional dome profile depth is increased to improve resistance to deformation, then reliability is improved, but material consumption increases
Solution Approach 1:
The dome profile is divided into functional segments with different thickness characteristics, creating a deformation-resistant zone that provides enhanced reliability against deformation while limiting material consumption to specific high-stress areas rather than uniformly increasing material throughout the entire dome structure.
Solution Approach 2:
The wall thickness parameter is varied across different zones of the dome profile, with increased thickness in the deformation-resistant zone to improve reliability, while reduced or standard thickness in other zones to minimize material consumption, thus resolving the contradiction between reliability and material usage.
3Weight of moving object
If dome depth is reduced to achieve weight reduction, then weight is reduced, but structural integrity and pressure resistance deteriorate
Solution Approach 1:
Rather than uniformly reducing dome depth, the invention applies local quality enhancement by increasing wall thickness specifically in the deformation-resistant zone, allowing the overall dome depth to be reduced for weight savings while maintaining or improving pressure resistance through localized material concentration.
Solution Approach 2:
The dome profile creates a composite structural system with zones of different thickness properties, combining a deformation-resistant zone with enhanced material presence with zones of reduced material, achieving a composite effect that provides both weight reduction and maintained pressure resistance.
4Loss of substance
If dome depth is reduced to achieve material savings, then material consumption is reduced, but structural performance deteriorates
Solution Approach 1:
The dome profile is segmented into zones with different material distribution, allowing overall material consumption to be reduced while maintaining structural performance through concentrated material placement in the deformation-resistant zone that provides enhanced reliability despite reduced total material usage.
Solution Approach 2:
The wall thickness parameter is strategically varied across the dome profile, with increased thickness in critical deformation-resistant zones to maintain structural performance, while reduced thickness in non-critical zones achieves material savings, resolving the contradiction between material consumption and structural performance.
Data Source
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Figure 3a~3b
AI summary
The inventive technology includes a novel container dome profile and manufacturing process for improving container and bottle deformation failure resistance and extending material displacement modes through an initial deformation panel coordinated with complimentary geometric paneling and buttressing structures configured to initiate a controlled sequential dome profile deformation mode. Dome reversal, dome growth, and dome drop resistance characteristics are improved with a shallower profile formation depth reducing pulldown, lower material consumption resulting in lower overall container/bottle weight. Novel geometric contoured shapes enhance container resistance performance supporting use of softer alloys or lower temper and yield strength to benefit post-processing efficiency and forming processes improvements while being configured to initiate controlled sequential dome profile deformation.