A note on safety-relevant vibrations induced by brake squeal |
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Authors: | Daniel Hochlenert Gottfried Spelsberg-Korspeter |
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Affiliation: | a Institute of Mechanics, Chair of Mechatronics and Machine Dynamics, Technische Universität Berlin, Germany b System Reliability and Machine Acoustics, LOEWE-Zentrum AdRIA, Dynamics and Vibrations Group, Technische Universität Darmstadt, Germany |
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Abstract: | Brake squeal is mostly considered as a comfort problem only but there are cases in which self-excited vibrations of the brake system not only cause an audible noise but also result in safety-relevant failures of the system. In particular this can occur if lightweight design rims having very low damping are used. Considering the special conditions of lightweight design rims, a minimal model for safety-relevant self-excited vibrations of brake systems is presented. It is shown that most of the knowledge emanated from investigations of the comfort problem can be used to understand and avoid safety-relevant failures of the brake system. |
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