MODELING AN OPTIMAL TRACK MAINTENANCE AND MANAGEMENT STRATEGY IN CONSIDERATION OF TRAIN DERAILMENT ACCIDENT RISK

development and implementation of an optimized control strategy for induction machine in an electric vehicle

in the area of automotive engineering there is a tendency to more electrification of power train. in this work control of an induction machine for the application of electric vehicle is investigated. through the changing operating point of the machine, adapting the rotor magnetization current seems to be useful to increase the machines efficiency. in the literature there are many approaches wh...

Railway Track Geometry Defect Modeling : Deterioration , Derailment 1 Risk and Optimal Repair

3 Qing He, Hongfei Li, Debarun Bhattacharjya, Dhaivat P. Parikh, and Arun Hampapur 4 5 6 7 Qing He, Hongfei Li, Debarun Bhattacharjya 8 {qhe, liho, debarunb}@us.ibm.com 9 IBM T J Watson Research Center 1

Evaluating Railroad Track Upgrades to Reduce Transportation Risk

Transportation Research Record: Journal of the Transportation Research Board, No. 2261, Transportation Research Board of the National Academies, Washington, D.C., 2011, pp. 178–185. DOI: 10.3141/2261-21 structure and operational conditions. Track-related and equipmentrelated accident causes collectively result in the majority of train derailments in the United States. Understanding how they may...

Optimal Maintenance and Renewal Strategy Due to Rail Track Geometry

Monte Carlo train derailment model for risk assessment

A Monte Carlo train over-speed derailment model for risk assessment is developed based on the derailment coefficient (wheel lateral and vertical force ratio). The model considers a one lump train negotiating on curved tracks or tangent tracks. The derailment coefficients for these two situations are calculated and the probabilities of train derailment are obtained to enhance a large scale Monte...