Abstract
This study presents experimental and analytical results about the influence of pad chamfering on squeal vibration in the disk-pad-caliper system, which is modeled after an actual disk brake. In the leading side of contact area, the disk and the pad-caliper vibrate with the same amplitude and the same phase at a point. We call this point “contact point”. Chamfering of the pad on the leading edge decreases the sound pressure level of squeal and moves the contact point from the leading side to the center of the pad. On the other hand, chamfering of the pad on the trailing edge has no relation to the squeal vibration. To clarify the influence of chamfering on squeal, we analyzed the disk-pad-caliper system as a surface contact analysis model, which combined the disk with pad-caliper by distributed springs.
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