Influence of Bogie Maintenance and Retrofitting on Wheel Wear: Analysis Using Integer Programming and Multibody Simulation

Brazilian railroads are continuously looking to increase their asset performance. In this sense, wheel/rail interface studies have been conducted, which allowed benefits that were not previously considered. Improved contact can significantly reduce maintenance costs, energy efficiency, and operational safety. For rolling stock, wheel consumption usually has the highest cost is among total costs of a railroad. Therefore, understanding wear behavior, carried out in an integrated manner with permanent track operating conditions, must be investigated depth. This study aims analyze influence bogies on wear. Two aspects considered: conditions bogie design. The evaluated through wayside field measurements. collected data later statistically modeled integer programming optimize review strategy, could avoid premature scrapping after 5 years, allowing for regular life 9 years. analysis development new parameter, defined manual rule standards. design modernization was analyzed using VAMPIRE multibody simulation software. retrofitted improve dynamic behavior theory. polymer suspension elements’ modelings thoroughly detailed each property illustrate retrofit’s features. calculate gains bogie, methodology built compare results real railroad section. used show retrofit provide reduction 40% ride control broad gauge (1600 mm).