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本文阐明了活塞尾端或内侧,摩擦衬块在制动产生听觉可分辨的噪声方面的影响。采用独特的技术测量常态制动工况下摩擦衬块/圆盘接触面间的动态中心压力(Cop)。该新技术采用一个在摩擦衬块内嵌入压力感敏膜。本文还提出了摩擦衬块/卡钳接触区的共面分析,以及它对圆盘/摩擦衬块Cop位置的影响。该分析表明,活塞尾端情况,影响Cop位置,并进一步说明该中心的移动类似于摩擦衬块支架振动与支架反向。本文包含用12个活塞对立卡钳的附加研究,初始Cop位置可以沿摩擦衬块和径向两个方向变化。结果表明,Cop的运动很明确使制动压力增大。
This article clarifies the effect of the friction pad on the end of the piston or on the inside of the piston in hearing-distinguishable noise from braking. A unique technique is used to measure the dynamic center pressure (Cop) between friction pad / disc contact surfaces under normal braking conditions. The new technology incorporates a pressure-sensitive membrane embedded in the friction pad. The paper also presents a coplanar analysis of the friction pad / caliper contact area and its effect on the disc / friction pad Cop position. The analysis shows that the piston tail condition affects the Cop position and further illustrates that the center’s movement is similar to the friction pad holder vibration and holder reversal. This article includes an additional study of 12 piston counter-calipers, where the initial Cop position can vary along both the friction pad and the radial direction. The results show that the movement of Cop clearly makes the brake pressure increase.