Brake squeal is an uncomfortable noise that occurs while braking. It is an important issue in automobile quality to prevent brake products from squealing. Brake shims are widely used to reduce squeal occurring rate. The anti-squeal effect of a shim is quantified as damping properties measured with a bending mode tester, instead of repeating many dynamometer tests. However, there are cases where measurement results have less correlation to actual squeal suppression rate. Therefore, the evaluation of the anti-squeal effect with a dynamometer or on an actual car is needed so that the best shim can be selected. To improve the predicted accuracy of the anti-squeal effect, the difference between measurement conditions and actual braking conditions of shims was focused on.
Yusuke Aoki, Yukio Nishizawa, 1Yasuyuki Kanehira. ADVICS, CO., LTD., Japan
Evaluation Of Brake Shim Damping Under Actual Conditions.
EB2017-VDT-009 • Paper • EuroBrake 2017 • VDT
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