Projects

Nothing shows expertise better than providing real-world examples of applied knowledge. See for yourself what Rail Sciences has to offer:

 

Wheel and Rail Profile Optimization

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Objective: Reduce excessive noise generation due to “wheel squeal”

Scope of Services:

  • RSI explored the effects of changes to wheel and rail profiles on wheel/rail wear, noise generation, and ride quality
  • RSI developed optimized wheel and rail profiles

Tasks:

  • Obtained and utilized the transit agency’s car mechanical data, track geometry, and rail profile measurements
  • Modeled a typically worn transit vehicle traveling over typically-worn track
  • Assessed numerous wheel and rail profiles

Passenger Car Residual Service Life Testing & Evaluation

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Objective: Determine repairs, reinforcements, and/or modifications needed of key railcar structures to increase operation time beyond the stipulated design life

Scope of Service:

  • Provided a feasible and safe life extension of the entire car fleet to remain in general compliance with BS EN12663-1:2010’s requirement on fatigue strength for passenger rolling stock

Tasks:

  • First-hand inspection, strain and acceleration test instrumentation of critical train structures
  • Finite element modeling analysis to calculate the remaining service fatigue life and to evaluate modifications, reinforcements, and/or repairs of the train structures needed

Review Railroad Operations

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Objective: Assess the operational safety, personnel allocation, asset utilization, and cost-effectiveness of existing rail-system operations

Scope of Services:

  • Audited all key railroad departments including safety, operations, track, mechanical, and planning
  • Project led to the implementation of a revised management plan that improved operational efficiencies and increased profitability

Tasks:

  • Site visits to multiple facilities for assessment of management, reporting, metrics, train operations, crew performance, locomotive utilization, track conditions, training, etc.
  • Identified conditions that adversely impacted performance and financial returns

Analysis of Train Derailment

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Objective: Determine why the 83rd car in a train derailed at a grade crossing

Scope of Services:

  • Determined the railcar derailed due to wheel unloading at the grade crossing pad resulting from a combination of mud-pumping in the region and multiple, non-condemnable mechanical deficiencies on the car

Tasks:

  • Executed a computer simulation matrix study
  • Utilized TOES to examine train handling, train make-up, and in-train force influences
  • Performed VAMPIRE analysis to assess the significance of localized track perturbations and less than optimum railcar conditions (see for a VAMPIRE analysis example below:)
  • YBIR204_AAR1B_batch_Ch1_Series_2