Affiliation:
1. Poznan University of Technology , Institute of Combustion Engines and Transport, Faculty of Machines and Transport , pl. M. Sklodowskiej-Curie 5, 60-965 Poznan , Poland
Abstract
Abstract
Due to their wide range of friction characteristics resulting from the application of different friction materials and good heat dissipation conditions, railway disc brakes have long replaced block brakes in many rail vehicles. A block brake still remains in use, however, in low speed cargo trains. The paper presents the assessment of the braking process through the analysis of vibrations generated by the components of the brake system during braking. It presents a possibility of a wider application of vibroacoustic diagnostics (VA), which aside from the assessment of technical conditions (wear of brake pads) also enables the determination of the changes of the average friction coefficient as a function of the braking onset speed. Vibration signals of XYZ were measured and analyzed. The analysis of the results has shown that there is a relation between the values of the point measures and the wear of the brake pads.
Subject
Instrumentation,Biomedical Engineering,Control and Systems Engineering
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