Pressure Vessel Accessory Anchoring in Fiber-Reinforced Layers
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Solution Overview
Problem
The challenge of integrating permanent accessory attachment structures on pressure vessels with rounded shapes without compromising structural integrity and aesthetic appeal is significant, as existing methods create stress points or alter the smooth contours.
Innovation Solution
A pressure vessel design incorporating a fiber-reinforced polymer layer with an accessory attachment structure that includes an anchor portion secured between the liner and the first layer, allowing for secure and durable attachment of accessories through mechanisms like threaded or snap-fit interfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If accessory attachment structures are integrated on rounded pressure vessels, then accessory versatility is improved, but structural integrity deteriorates due to stress points
Solution Approach 1:
The attachment structure is divided into separate functional elements: an anchor portion embedded in the liner, a transition portion within the composite layers, and a connection portion for accessories. This segmentation allows each element to be optimized independently, with the anchor portion providing secure attachment without compromising the rounded vessel shape or creating stress concentration points.
Solution Approach 2:
The pressure vessel uses composite materials consisting of a liner and multiple layers of fiber-reinforced polymer. The attachment structure integrates with these composite layers, using the same material properties to distribute stresses evenly throughout the structure, thereby maintaining structural integrity while enabling accessory attachment.
2Adaptability or versatility
If accessory attachment structures are integrated on rounded pressure vessels, then accessory versatility is improved, but aesthetic appeal deteriorates due to altered smooth contours
Solution Approach 1:
The attachment structure is designed with local quality variations that are imperceptible to the human eye. The transition portion is shaped to blend seamlessly with the rounded contours of the pressure vessel, while the connection portion provides the necessary accessory attachment functionality. This allows the vessel to maintain its aesthetic appeal while enabling accessory attachment.
3Ease of operation
If traditional attachment methods are used on rounded vessels, then accessory attachment is achieved, but stress points are created compromising structural integrity
Solution Approach 1:
The anchor portion is pre-embedded within the liner and composite layers during the pressure vessel manufacturing process. This preliminary action ensures that the attachment structure is already in place and properly integrated before any accessories are attached, eliminating the need for post-manufacturing modifications that would create stress points or compromise structural integrity.
Data Source
AI summary
A pressure vessel is disclosed, comprising a pressure vessel body defining interior for containing a pressurized fluid and an accessory attachment structure coupled to the pressure vessel body. The pressure vessel body comprises a liner and at least a first layer that surrounds the liner, the first layer including a fiber-reinforced polymer. The accessory attachment structure comprises an accessory connection portion and an anchor portion. The anchor portion is secured between the liner and the first layer with the first layer overlapping the anchor portion. The accessory connection portion projects outwardly from the anchor portion at least partially through the first layer.