ディスクブレーキにおける面内鳴き振動の計測

抄録

This study concerns in-plane squeal of disk brake. In disk brake which is used in motor vehicle, as a result of progress in reducing out-of-plane squeal which caused by the coupling of the natural vibration of the out-plane direction of the disk and caliper of natural vibration. In-plane squeal which the disk vibrates in-plane direction and occurs squeal has become a problem. However, in-plane squeal has remained in the confirmation of the phenomenon. The essence of the phenomenon is not clear. And since the deformation, such as expansion and contraction in the in-plane direction of the disk is not transmitted vibration in the air. There is a question of whether not the squeal does not occur. In this study, we focused on the natural vibration which disk brake vibrate in in-plane and out-plane at the same time, as a cause of in-plane squeal. At first, we verify the natural vibration mode by impact for disk brake which in-plane squeal has occurred. Secondly, reproduce the squeal and make the grasp of the in-plane squealing phenomenon by experimental apparatus which simplified a structure of the disk brake. And we measure the disk vibration of out-plane and in-plane when the disk occurs in-plane squeal. After that, we consider the disk vibration mode from the vibration state of the squeal occurred.