Paper
Characterization and Modelling of a New Heavy Axle Load Freight Wagon for Wheel Rail Wear Prediction
- Authors:
- Guilherme Fabiano Mendon?a dos Santos; Roberto Spinola Barbosa; Xinggao Shu; Curtis Urban; Richard Joy
- Abstract
- Vale projects an increase in annual tonnage of more than 120 percent its Estrada de Ferro Carajás between 2012 and 2017. Part of the increase will be accomplished by obtaining new wagons that will be operated at 37.5 tonne axle loads. Transportation Technology Center, Inc. (TTCI) and Vale conducted a test of a new wagon to determine secondary suspension stiffness as well as inertial mass moments of inertia of the wagon body. The results were used in conjunction with results from track testing to construct an accurate model of the wagon. The validated model was used to compare wheel and rail wear at the increased axle loads with the current axle load of 32.5 tonnes. While wheel and rail RCF and wear are predicted to increase with current wheel profiles, implementation of improved wheel profiles may reduce wear and RCF significantly. In addition, the importance of preventive grinding and lubrication is emphasised.
- Keywords
- Rail Wheel Interaction; Rolling Contact Fatigue; Rolling Stock Design; Simulation; Wear
- StartPage
- 17
- EndPage
- 28
- Doi
- 10.18005/JMET0203001