ブレーキノイズに関する研究 : 第3報, ディスクブレーキグローン音の場合

概要

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Eliminating brake noise generated during brake application is an important subject for the improvement of comfort in a car. This noise can be caused by two different phenomena: the high-frequent brake squeal (frequency 1-15 kHz) and the low frequent brake groan (200-500 Hz). We presented two researches on brake squeal at the 1st and the 2nd reports. We have made research into the low frequent brake groan, so as to study the method of eliminating brake groan. We considered the analysis model, in order to clarify the cause of disc brake groan. We obtained the equation which represents E, the increase of kinetic energy during 1 cycle. Brake groan is generated under the condition E > 0. The factor, having influence on brake groan, was clarified by considering the above equation of E.
1990-07-25