Railway Floor Composite Panel for Fire Resistance With Lower Weight
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional railway vehicle floors require multiple superimposed layers for fire and heat resistance, leading to increased weight and complex construction.
Innovation Solution
A composite panel structure using a wood or bark layer sandwiched between steel and aluminum plates, with a metal frame and rails, providing mechanical support and thermal insulation while minimizing weight and parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple superimposed layers are used for fire and heat resistance, then fire and heat resistance is improved, but weight increases and construction complexity increases
Solution Approach 1:
The patent uses a composite panel structure combining a metal plate (steel or aluminum) with a wood or bark insulation layer. This composite construction provides both mechanical strength and thermal insulation properties in a single integrated component, eliminating the need for separate superimposed layers and reducing overall weight while maintaining fire and heat resistance.
Solution Approach 2:
The patent merges the structural panel and thermal insulation panel into a single composite panel. The metal plate provides structural support while the wood or bark layer provides thermal insulation, combining two separate functions into one integrated component that reduces weight and simplifies construction.
2Reliability
If multiple superimposed layers are used for fire and heat resistance, then fire and heat resistance is improved, but construction complexity increases
Solution Approach 1:
The composite panel integrates multiple materials (metal plate and wood or bark) into a single manufactured component that simultaneously provides structural support and thermal insulation, reducing construction complexity by eliminating the need to assemble multiple separate layers.
Solution Approach 2:
By combining the structural panel and thermal insulation panel into one composite panel, the patent reduces the number of parts and assembly steps required for floor construction, thereby simplifying the construction process while maintaining fire and heat resistance.
3Strength
If conventional metal plates are used for structural support, then mechanical strength is improved, but weight increases
Solution Approach 1:
The patent employs a composite structure where a thin metal plate provides necessary mechanical strength and rigidity, while a wood or bark layer provides thermal insulation. This composite approach achieves the required structural performance with reduced material usage and lower weight compared to conventional solid metal construction.
Solution Approach 2:
The metal plate is positioned specifically where mechanical strength is needed for structural support, while the wood or bark layer is positioned where thermal insulation is required. This localized assignment of materials to their optimal functional positions optimizes both strength and weight efficiency.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The structure achieves fire and heat resistance with optimized weight and reduced complexity, supporting mechanical loads without additional weight, using materials like balsa or cork for thermal insulation and aluminum for reduced weight.
Implementation Method 1
a layer of thermal insulating material, arranged between the lower and upper metal plates... the layer of thermal insulating material includes: a lower face, in contact with the lower metal plate; and an upper face, in contact with the upper metal plate
Data Source
AI summary
A floor structure for a railway vehicle includes a composite panel. The panel includes a lower metal plate, an upper metal plate, and a layer of thermal insulating material arranged between the lower and upper metal plates. The layer of thermal insulating material includes a plate of wood or bark.