Modular Wet Room Panels for Rail Vehicles
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Solution Overview
Problem
Current wet cell designs for rail vehicles are inflexible, costly to modify, and heavy, requiring extensive testing and manual labor, leading to high production costs and difficulties in adapting to customer requirements, with complex repair processes and significant weight issues.
Innovation Solution
A modular wet cell system composed of lightweight, sandwich material panels connected using metal profiles and tongue-and-groove connections, allowing for easy assembly and disassembly without the need for specialized molds, integrating essential lines and components during production, and enabling efficient adaptation to various installation scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If GRP wet cells are manufactured using traditional molding processes, then the structural integrity is maintained, but the weight becomes excessively high and production flexibility is reduced
Solution Approach 1:
The wet room is divided into multiple separate panels (front wall panel, rear wall panel, side wall panels, floor panel, ceiling panel) that can be manufactured independently and assembled together. This segmentation allows each panel to be optimized for weight while maintaining overall structural integrity through the support structure and connection mechanisms.
Solution Approach 2:
The patent employs composite panel constructions with core materials (such as honeycomb structures or foam) sandwiched between outer skins. This composite approach provides high strength-to-weight ratio, maintaining structural integrity while significantly reducing the overall weight compared to solid GRP construction.
2Reliability
If traditional GRP wet cells are manufactured, then fire behavior requirements can be met, but material substitution becomes difficult due to repeated testing requirements
Solution Approach 1:
By dividing the wet room into separate panels, the patent enables independent testing and certification of individual panel types. Once a panel design is certified for fire behavior, it can be reused across different wet room configurations without requiring complete re-testing, thus improving material substitution flexibility while maintaining reliability.
Solution Approach 2:
The standardized panel design with universal connection systems allows the same certified panels to be used in multiple wet room configurations and applications. This universality enables easy adaptation to different customer requirements while maintaining fire behavior compliance through the already-certified panel designs.
3Adaptability or versatility
If custom molds are created for each wet cell variant, then customer requirements can be met, but production complexity and costs increase significantly
Solution Approach 1:
The wet room is segmented into standardized panels that can be manufactured using common tooling. Different wet room configurations are achieved by selecting and arranging different panel combinations rather than creating custom molds for each variant, thus reducing production complexity while maintaining adaptability to customer requirements.
Solution Approach 2:
The modular panel system with standardized connections allows for dynamic reconfiguration of wet rooms to meet different customer requirements. The same basic panels can be arranged in different configurations or combined with optional accessories, providing versatility without requiring complex custom production processes for each variant.
4Ease of manufacture
If manual work is increased in GRP manufacturing, then production flexibility is improved, but manufacturing precision and consistency deteriorate
Solution Approach 1:
By manufacturing separate panels with standardized dimensions and thicknesses, the patent improves manufacturing precision through consistent production processes for each panel type. The segmentation allows for automated or semi-automated production of identical panels, reducing variability while maintaining production flexibility through modular assembly.
Data Source
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AI summary
Modular wet room for rail vehicles, comprising floor, wall and ceiling elements composed of core composite material and connected among each other using connection profiles. Supply and discharge lines are run along reinforcement profiles integrated into the panels.