Laboratoire de Mécanique Multiphysique Multiéchelle, LaMcube, UMR 9013, Centrale Lille, CNRS, University Lille, 59000 Lille, France
Jean-François Brunel
Laboratoire de Mécanique Multiphysique Multiéchelle, LaMcube, UMR 9013, Centrale Lille, CNRS, University Lille, 59000 Lille, France
Florent Brunel
Laboratoire de Mécanique Multiphysique Multiéchelle, LaMcube, UMR 9013, Centrale Lille, CNRS, University Lille, 59000 Lille, France
Maxence Bigerelle
LAMIH-Laboratoire d’Automatique de Mécanique et d’Informatique Industrielles et Humaines, UMR 8201, CNRS, University Polytechnique Hauts-de-France, 59313 Valenciennes, France
Merten Stender
Mechanical Engineering Group, Berlin University of Technology, 10623 Berlin, Germany
Norbert Hoffmann
Dynamics Group, Hamburg University of Technology, 21073 Hamburg, Germany
Philippe Dufrénoy
Laboratoire de Mécanique Multiphysique Multiéchelle, LaMcube, UMR 9013, Centrale Lille, CNRS, University Lille, 59000 Lille, France
In various applications, dry friction could induce vibrations. A well-known example is frictional braking systems in ground transportation vehicles involving a sliding contact between a rotating and a stationary part. In such scenarios, the emission of high-intensity noise, commonly known as squeal, can present human health risks based on the noise’s intensity, frequency, and occurrences. Despite the importance of squeal in the context of advancing urbanization, the parameters determining its occurrence remain uncertain due to the complexity of the involved phenomena. This study aims to identify a relevant operando indicator for predicting squeal occurrences. To this end, a pin-on-disc test rig was developed to replicate various contact conditions found in road profiles and investigate resulting squealing. Each test involves a multimodal instrumentation, complemented by surface observations. It is illustrated that the enhanced thermal indicator identified is relevant because it is sensitive to the thermomechanical and tribological phenomena involved in squealing.
