Maintaining the airworthiness of the railway transport system

Manufacturers of railway transport vehicles invest huge amounts of money in designing fast, safe, comfortable, and efficient passenger vehicles. Methods and means of modern technical diagnostics allow for maintaining the airworthiness of railway transport vehicles through continuous monitoring of their condition. They also allow for testing compliance with the requirements set for railway transport vehicles in terms of applicable safety and ride comfort standards (UIC – 518 standards).By adopting the vibration signal as the basis for describing and examining changes in the dynamic state of the railway system during operation, the safety and ride comfort, changes in the condition of selected railway system assemblies, and changes in the condition of the subgrade and railway tracks were evaluated.
During the implementation of individual tasks in this work, available procedures for the acquisition and processing of diagnostic signals for condition assessment were used and new ones were developed, a method for selecting measurement points in vibration diagnostics was developed and practically verified, modernized procedures in the area of examining diagnostic sensitivity and determining limit values of measured signals were proposed, selected diagnostic models were verified, and selected forecasting methods for the purpose of determining the date of the next diagnosis were analyzed.
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