A Study on Disc Brake Squeal Using Finite Element Methods

Suppression of brake squeal noise applying finite element brake and pad model enhanced by spectral-based assurance criteria

“…As expected, the propensity for squeal increases with higher coefficients of friction as shown in Fig. 16c, which is consistent with previously reported results [11][12][13][14][15][16]. This is because the higher coefficient of friction causes the variable frictional forces to be higher resulting in the tendency to excite greater number of unstable modes.…”

“…To address the squeal noise problem, a significant number of previous studies have focused on examining brake system level design concepts, including investigations that have led to modifications made to the caliper stiffness [11,12], mounting bracket [13,14], and rotor geometry [15,16]. In most cases, the analyses attempted to apply the modal participation factor of each component to assess their potential effect on squeal noise occurrences.…”

“…1. Among the different types of noise signatures, squeal noise, because of its higher frequency contents, persists to be one of the major concerns throughout the automotive industry in spite of much research and development work performed [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24] in last few decades. One of the main theories behind the squeal occurrence, as summarized in Fig.…”

The influence of joints on friction induced vibration in brake squeal

“…Numerous works have analyzed the phenomenon of brake squeal, ranging from basic studies on mechanisms up to the development of suitable measurement techniques [1,2,3]. Nowadays, there is a strong research focus on numerical simulation [4,5,6,7]. Some years ago stability studies in the form of eigenvalue analysis of the linearized system became state of the art.…”

Reduction of Noise from Disc Brake Systems Using Composite Friction Materials Containing Thermoplastic Elastomers (TPEs)

“…When the two components, disc and pad, start to vibrate together, the system damping for that specific system resonance is reduced, since the joint damping between pad and disc decreases. As a consequence, the friction forces may introduce more energy into the system than it can dissipate [16].…”