Rail Vehicle Paneling Connection Using Elastic Buffer
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Solution Overview
Problem
The existing connection arrangements for attaching paneling parts to rail vehicles are complex, requiring frequent realignment and visible fasteners, which increases assembly and disassembly time and negatively affects the visual appearance.
Innovation Solution
A connection arrangement featuring a buffer element and an attachment element that allows for flexible, non-rigid connection between the paneling part and the carrier, with a bolt having a higher elasticity material, enabling easy assembly and disassembly, and minimizing visible attachment points by using a plug connection and additional screw connections to secure the paneling part.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional screw connections are used to attach paneling parts, then structural integrity is ensured, but assembly and disassembly time increases and visual appearance is degraded due to visible fasteners
Solution Approach 1:
The connection arrangement is divided into separate functional elements: a buffer element for positioning and a separate fastening mechanism. This segmentation allows the paneling part to be quickly attached and detached without complex realignment procedures, directly reducing assembly and disassembly time while maintaining structural integrity through the dedicated fastening component.
Solution Approach 2:
The buffer element acts as an intermediary component between the paneling part and the carrier. It provides a positioning function that guides the paneling part into correct alignment, while the separate fastening mechanism secures it. This intermediary approach eliminates the need for visible external fasteners while maintaining connection stability.
2Reliability
If multiple visible fasteners are used to secure the paneling part, then connection stability is improved, but the visual appeal of the rail vehicle is negatively affected
Solution Approach 1:
The fastening function is extracted and separated from the positioning function. The buffer element handles positioning internally, while a minimized fastening mechanism provides secure attachment. This extraction allows the majority of the connection arrangement to be hidden, preserving the visual appearance of the rail vehicle while maintaining connection stability through the dedicated fastening element.
Solution Approach 2:
The connection arrangement applies different functional qualities to different locations: the buffer element provides positioning quality at the interface with the paneling part, while a minimized fastening mechanism provides securing quality at a specific attachment point. This localized functional distribution ensures connection stability without requiring multiple visible fasteners across the surface.
3Strength
If rigid connections are used between paneling parts and carrier, then structural strength is improved, but flexibility to accommodate misalignment is reduced
Solution Approach 1:
The connection arrangement transitions from a purely rigid connection to a dynamic system with two stages: a flexible positioning stage through the buffer element that accommodates misalignment, followed by a rigid fastening stage that provides structural strength. This dynamic approach allows the connection to adapt during assembly while maintaining strength in service.
Solution Approach 2:
The buffer element provides beforehand cushioning by absorbing alignment tolerances and minor misalignments before the fastening mechanism engages. This cushioning effect protects the rigid fastening connection from stress caused by misalignment, allowing the paneling part to be securely attached even when perfect alignment is not achieved.
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
This solution simplifies the assembly and disassembly of paneling parts, reduces the number of visible attachment points, and enhances the visual appeal of rail vehicles while maintaining structural integrity and aerodynamic performance.
Implementation Method 1
the material of the head having a higher elasticity than the material of the carrier and the attachment element
Data Source
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AI summary
The invention relates to a connection arrangement (1) for attaching a fairing part (2) to a vehicle (3), in particular a rail vehicle (3), comprising a support (4) forming a first component (4), the fairing part (2) forming a second component (2), a buffer element (5) extending along a buffer element longitudinal axis (L1) and connected to one of the components (2, 4), and an attachment element (6) extending along a mounting element longitudinal axis (L2) and connected to the other component (2, 4), wherein the attachment element (6) is placed on the buffer element (5). To simplify the assembly of a fairing part (2) to a vehicle (3), the invention proposes that the buffer element (5) and the attachment element (6) are arranged between the fairing part (2) and the support (4), and that the connection between the buffer element (5) and the attachment element (6) is flexible.Furthermore, the invention relates to a rail vehicle (3) with such a connection arrangement (1).