Pressure Vessel Fiber Winding Across Domes and Cylindrical Body
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Solution Overview
Problem
The existing manufacturing methods for pressure vessels require reinforcing fibers to be wound at a specific angle along the geodesic line to prevent slipping, limiting flexibility and increasing costs due to the need for excessive fiber usage.
Innovation Solution
A method where reinforcing fibers are wound helically around the cylindrical body and interlaced around the hemispherical parts, allowing flexibility in winding angles and reducing the amount of fibers needed, with specific transitions between winding sections to maintain continuity and strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If reinforcing fibers are wound at a fixed angle along the geodesic line to prevent slipping, then the fibers are less likely to slip over the domed part, but the flexibility in setting the winding angle is lost and a large amount of reinforcing fibers is required
Solution Approach 1:
The patent divides the vessel into three distinct sections with different winding patterns: the first domed part uses interlaced winding to prevent slipping, the straight body part uses helical winding for flexibility and strength optimization, and the second domed part uses interlaced winding again. This segmentation allows each section to use the most appropriate winding method for its specific requirements, reducing overall fiber consumption while maintaining reliability.
Solution Approach 2:
The patent applies different winding qualities to different locations: interlaced winding is applied locally at the domed parts where slipping prevention is critical, while helical winding is applied locally at the straight body part where flexibility and strength are priorities. This local differentiation optimizes fiber usage by applying anti-slip measures only where necessary rather than uniformly across the entire vessel.
2Reliability
If reinforcing fibers are wound at a fixed angle along the geodesic line, then the fibers are less likely to slip over the domed part, but the manufacturing cost increases due to excessive fiber usage
Solution Approach 1:
The patent segments the winding process into different sections with different patterns, allowing the expensive interlaced winding to be applied only where necessary (domed parts) rather than throughout the entire vessel. The straight body part uses the more cost-effective helical winding, significantly reducing overall material costs while maintaining reliability at critical locations.
Solution Approach 2:
The patent applies high-quality interlaced winding only locally at the domed parts where slipping prevention is essential, rather than uniformly across the entire vessel. This localized application of premium winding technology reduces material consumption and manufacturing costs while maintaining the necessary reliability at critical stress points.
3Adaptability or versatility
If reinforcing fibers are helically wound around the straight body part, then flexibility in setting the winding angle is allowed, but the fibers may slip over the domed part
Solution Approach 1:
The patent segments the winding approach so that helical winding with angle flexibility is applied to the straight body part, while interlaced winding is applied to the domed parts where slipping prevention is critical. This segmentation allows each section to use the winding method best suited to its geometric and functional requirements.
Solution Approach 2:
The patent applies different winding qualities to different locations: helical winding with full angular flexibility is applied locally at the straight body part, while interlaced winding is applied locally at the domed parts where slipping prevention is essential. This local differentiation resolves the contradiction by allowing flexibility where it doesn't compromise reliability.
Data Source
AI summary
A pressure vessel includes: a vessel main body having a cylindrical straight body part, and domed parts respectively including hemispherical portions that have hemispherical shapes and are integrally formed at each end of the straight body part; a first reinforced section formed by winding reinforcing fibers around an outer circumferential surface of one domed part such that the reinforcing fibers are interlaced with each other; a second reinforced section formed by winding the reinforcing fibers helically around an outer circumferential surface of the straight body part, continuously from the first reinforced section; and a third reinforced section formed by winding the reinforcing fibers around an outer circumferential surface of the other domed part such that the reinforcing fibers are interlaced with each other, continuously from the second reinforced section.