Actuatable Enclosure Panel for Light Rail Vehicle Collision Safety
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Solution Overview
Problem
Current light rail vehicles lack safety enclosures, making them vulnerable to damage and injury in collisions, and replacing existing vehicles with end enclosures is costly and time-consuming.
Innovation Solution
An actuatable enclosure system that can be retrofitted or manufactured as part of light rail vehicles, featuring an enclosure panel that can transition between a deployed and stowed configuration, incorporating a breakaway system to disperse collision forces and maintain operational functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an end enclosure is added to light rail vehicles, then safety and damage reduction in collisions is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The enclosure panel is divided into multiple segments that can independently move between deployed and stowed configurations. This segmentation allows the system to provide safety coverage when needed while being removable to accommodate coupling operations, resolving the contradiction between maintaining safety and enabling operational flexibility.
Solution Approach 2:
The enclosure panel is designed as a dynamic structure that can transition between different states (deployed for safety, stowed for coupling). This dynamic capability allows the same structure to serve multiple functions at different times, addressing both safety requirements and operational needs without permanent complexity.
2Reliability
If an end enclosure is permanently installed on light rail vehicles, then collision protection is improved, but coupling and decoupling operations become difficult
Solution Approach 1:
The enclosure panel transitions from a static permanent structure to a dynamic movable structure. It can be positioned in a deployed state to provide collision protection and a stowed state to facilitate coupling operations, thus resolving the contradiction between protection and operational ease.
Solution Approach 2:
The enclosure panel can be extracted or removed from the protective position during coupling operations and returned to it when coupling is complete. This temporary extraction allows coupling to proceed without permanent structural interference while maintaining safety when needed.
3Reliability
If an end enclosure is installed on light rail vehicles, then safety in collisions with automobiles is improved, but cost and time for vehicle replacement increase
Solution Approach 1:
The safety enclosure is implemented as a separate modular panel that can be added to existing vehicles rather than requiring complete vehicle replacement. This segmentation of the safety function from the vehicle itself allows for cost-effective retrofits and reduces deployment time.
Solution Approach 2:
The enclosure system is designed as a pre-engineered modular unit that can be pre-manufactured and then quickly installed on existing vehicles. This preliminary preparation of the safety component separates the design and manufacturing process from vehicle production, enabling faster deployment across the fleet.
4Reliability
If the enclosure panel is kept in deployed configuration, then safety protection is improved, but operator line of sight and coupling ability are blocked
Solution Approach 1:
The enclosure panel's position is dynamically adjusted based on operational requirements. It maintains a deployed configuration for safety protection during normal operation and transitions to a stowed configuration when operator visibility or coupling operations require unobstructed views, thus resolving the contradiction between protection and operational clarity.
Data Source
AI summary
An enclosure system attachable to a railway vehicle to protect automobiles in the event of a collision. The enclosure system having an enclosure panel that is actuatable between a deployed configuration and a stowed configuration. A breakaway mechanism configured to allow certain components of enclosure system to release from the railway vehicle in the event of a collision with another railway vehicle to ensure the anticlimbers engage between the railway vehicles to prevent override. The enclosure system having a coupler centering assembly for maintaining a coupler in a forward position when the enclosure is in the deployed configuration.