Rail Vehicle Air Tank Protective Shield Design
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Solution Overview
Problem
Existing rail vehicle container assemblies are heavy, leading to increased costs and operational challenges due to high material usage and mechanical stress requirements, particularly on the underbody where components face severe loads and weather conditions.
Innovation Solution
A rail vehicle assembly design that separates the container's function from its mechanical protection, using a protective element at a defined distance from the container to reduce material thickness and weight, allowing for lighter materials and easier assembly, while ensuring safety against mechanical stresses and visual inspection requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the container wall thickness is increased to meet safety requirements for underbody mounting, then the mechanical strength and protection against flying gravel improve, but the overall weight of the assembly increases significantly
Solution Approach 1:
The protective function is segmented from the container structure itself and implemented as a separate protective element (fender) positioned at a defined distance from the container. This allows the container to use thinner walls optimized for its primary function while the separate protective element handles mechanical protection against flying gravel and debris.
Solution Approach 2:
A protective element (fender) is introduced as an intermediary component between the flying gravel/environmental hazards and the container. This intermediary absorbs the mechanical impacts and protects the container, allowing the container wall thickness to be reduced while maintaining safety requirements.
2Reliability
If heavier materials and thicker walls are used to ensure safety under severe mechanical loads, then the reliability under stress improves, but the material costs and assembly complexity increase
Solution Approach 1:
The system is divided into functionally independent components: the container for fluid storage and the protective element for mechanical protection. This segmentation allows each component to be optimized for its specific function and assembled separately, simplifying manufacturing and assembly processes.
Solution Approach 2:
The protective element serves multiple functions simultaneously: it protects against flying gravel, absorbs mechanical impacts from debris and ice, provides structural support, and enables visual inspection of the container through its design. This multi-functionality reduces the need for additional components.
3Object-affected harmful factors
If a separate protective element is added to protect the container, then the protection against flying gravel and mechanical stresses improves, but the device complexity increases
Solution Approach 1:
The protective element is designed to be integrated with the existing support frame structure of the rail vehicle. By combining the protective function with the mounting structure, the system avoids adding separate complex support mechanisms while still providing comprehensive protection.
Solution Approach 2:
The protective element is designed as a thin-walled structure (such as a perforated plate or shell) that provides effective protection against flying gravel and debris while maintaining low weight. The thin-film design allows for easy assembly and disassembly without requiring heavy fastening mechanisms.
Data Source
Figure 1a~1b
Figure 2~3
Figure 4
AI summary
The component (100) has a container (110) i.e. compressed air tank, provided for storing fluids, and a protection element (120) i.e. punched shield, adapted by the container such that the container is partially enclosed at a defined space from outer side of the container. The protection element is formed with a half shell, which is made a curved metal sheet, and front ends of face plates are welded with each other. The protection element is secured at a container attachment element (140), which is attached with a support frame (160). An independent claim is also included for a kit for manufacture of a pressurized air component for a rail vehicle.