Abstract
This study presents experimental and analytical results of squeal vibration in the disk-pad-caliper system, which is modeled after an actual disk brake. The frequency of squeal becomes higher as the thrust load grows large. We think this phenomenon originates in that the stiffness of a contact region becomes hard according to load. Therefore we measured stiffness of a contact region in the experiment conditions imitating the situation which squeal vibration generated. And we analyzed the disk-pad-caliper system as a distributed spring model based on experiment result This model expresses that the mode of vibration and a sound pressure level is dependent on load.
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