Dynamic Behavior and Stability of a Disk Brake Coupled with a Helical Geared System

The application of friction mechanisms is found in many areas such as automobile disc brakes. The study of these systems presents some complexity due to the large number of components and parameters included. In this paper a mathematical mechanical modeling of disc brake squeal with multi friction contacts points is developed. Besides, an analysis of squeal is presented through the study of stability of the equilibrium by calculating the complex Eigen modes. Then, the influence of angular velocity of the disc, phase shift angle between two contacts points in the same side of disc, coefficient of friction and the linear stiffness and damping is investigated. In the second part of this paper, the disc brake model will be coupled with a helical geared system. This mechanical model has eight degrees of freedom. The dynamic response of the non-linear system is computed using Runge Kutta method. Dynamic responses come to confirm a significant influence of disc brake on the dynamic behavior of gear. © 2020, Chinese Mechanical Engineering Society. All right reserved.