VLI SA manages approximately 8,000km of railway network in Brazil, and operates intermodal rolling stock....
Wayside Inspection Device’s (WID) truck bogie optical geometry inspection system for metros and transit railways (TBOGI-TR) is a wayside solution that measures the geometry of each wheelset and bogie.
These are the critical parameters necessary to evaluate the wheel-rail interface of every bogie that passes the TBOGI-TR system.
TBOGI-TR has been specifically designed for transit railways (metros, passenger, underground) where trackside space is limited. TBOGI-TR is designed to have the lowest possible profile next to the track, so can be installed on elevated railways, tunnels, and other locations with extremely limited trackside space.
TBOGI-TR delivers the full suite of TBOGI benefits, but at a fraction of the size. Hunting detection is optional.
The results from TBOGI-TR systems in transit environments has shown that the data is as relevant to these railways as it is in freight and heavy haul environments.
The ongoing maintenance requirement of a TBOGI-TR system is low, similar to the low cost of ownership of the ‘full-size’ TBOGI-HD system.
The TBOGI-TR system supports the industry’s goals to:
- Improve operational safety by minimising derailments
- Increase the asset lifespan of rail infrastructure
- Increase the asset lifespan of wheels and bogie components
- Improve efficiency by reducing the cost of rolling stock inspection and maintenance
TBOGI-TR has a solid history of being reliable and accurate, and of providing significant cost savings for both rolling stock and rail infrastructure.
The TBOGI-TR system is installed next to the rails, outside the clearance envelope. The system uses laser technology to measure the tracking behaviour (geometry) of wheelsets and bogies.
When the wheel-rail interface is compromised, TBOGI-TR data shows the degeneration of the defect from inception through to critical status. Accurate thresholds can be set to prevent severe wear to the rolling stock and rail infrastructure, and to prevent derailment risks.
The TBOGI system offers a simple, cost-effective solution to the fundamental issue of optimising the wheel-rail interface.
TBOGI-TR offers the following features and benefits:
- The laser-based system accurately measures the angle of attack and the tracking position of each wheelset on a train passing at speeds of up to 300km/h
- As the system is installed on tangent track, it does not require a special track layout
- Non-contact sensors are installed at a safe distance from passing trains, and do not interfere with track maintenance work
- The measurements are accurate, regardless of weather and rail lubrication conditions
- The system is simple to install and maintain
- The system is proven to be railroad-tough, highly reliable, and cost-effective
The TBOGI-HD is designed for as a condition monitor and hunting detector for freight railways.
Wayside Inspection Devices TBOGI-TR is designed for railway bogie condition monitoring.
This case study looks at what challenges have faced wayside condition monitoring being installed on...