Analysis of disc brake squeal using the complex eigenvalue method

作者：Liu P^*; Zheng H; Cai C; Wang Y Y; Lu C; Ang K H; Liu G R

来源：Applied Acoustics, 2007, 68(6): 603-615.

DOI：10.1016/j.apacoust.2006.03.012

• disc brake squeal
• complex eigenvalue extraction
• friction coefficient
• stiffness
• damping ratio

A new functionality of ABAQUS/Standard, which allows for a nonlinear analysis prior to a complex eigenvalue extraction in order to study the stability of brake systems, is used to analyse disc brake squeal. An attempt is made to investigate the effects of system parameters, such as the hydraulic pressure, the rotational velocity of the disc, the friction coefficient of the contact interactions between the pads and the disc, the stiffness of the disc, and the stiffness of the back plates of the pads, on the disc squeal. The simulation results show that significant pad bending vibration may be responsible for the disc brake squeal. The squeal can be reduced by decreasing the friction coefficient, increasing the stiffness of the disc, using damping material on the back plates of the pads, and modifying the shape of the brake pads.

• 出版日期2007-6