Experimental Investigation and Modeling of Brake Squeal Using Simplified Test Rigs

This paper presents a synopsis of recent investigations on brake squeal noise carried out on simplified experimental rigs. The common theme of the these works is that of approaching the study of squeal noise on experimental set-ups that are much simpler than commercial disc brakes providing the possibility of repeatable measurements of squeal occurrence. As a consequence, it is possible to build consistent and robust models of the experimental apparatus to simulate the squeal events and to understand the physics behind squeal instabilities.