Effect of yaw angle misalignment on brake noise and brake time in a pad-on-disc-type apparatus with unidirectional compliance for pad support

Transient vibro-acoustic analysis of squeal events based on the experimental bench FIVE@ECL

“…From an experimental point of view, both industrial and academic test rigs have been developed in order to propose contributions for a better understanding of the phenomena of brake squeal, as well as to investigate which physical phenomena could be the cause of the brake noise. For example some rely on research more focused on friction-induced vibrations [6,7,8,9,10,11,12,13,14,15,16,17], while others study the subject via thermal considerations [18,19] or a tribological point of view [20,21,22,23,24,25]. On the other hand, some researchers [23,26,27,28] are also interested in dealing with the problem of brake squeal by considering additionally the problem of acoustic radiated noise due to friction-induced vibration or roughness at the frictional interface.…”

Squeal analysis based on the laboratory experimental bench “Friction-Induced Vibration and noisE at École Centrale de Lyon” (FIVE@ECL)

“…On the other hand, academic research groups working on this subject proposed to investigate brake squeal by developing academic simplified test rigs, one of the main reasons being to master the conditions of brake squeal vibration and noise. Experimental academic set-ups based on different configurations such as pad-on-disc [16,17,18,19], beam-on-disc [20,21,22,23,24] or brake dynamometer [25,26] have been developed in this direction. These studies on academic experimental set-ups are complementary studies to those conducted on industrial applications: one of the major assets of the development of such academic experimental benches is to be able to acquire a clear understanding of the squeal mechanisms and then to extend such knowledge to control the squeal occurrence in commercial brakes.…”

Tribological and dynamical analysis of a brake pad with multiple blocks for a high-speed train

“…7,20 Generally, two methods are widely used to investigate brake squeal, i.e. experimental tests 8,[21][22][23][24][25][26][27] and the FE method. [28][29][30] Many scholars have examined the squeal noise of brake systems by combing both methods, [31][32][33][34][35][36][37][38][39][40] considering that both experimental tests and the FE method have their own merits and demerits.…”

“…[28][29][30] Many scholars have examined the squeal noise of brake systems by combing both methods, [31][32][33][34][35][36][37][38][39][40] considering that both experimental tests and the FE method have their own merits and demerits. It is worth noting that, when using experimental tests and considering the large and complex structural properties of an actual disc brake system, many researchers established simplified test setups of brake systems to investigate brake squeal, such as beam-on-disc system, 23,41 pad-on-disc system, 24,25 and brake dynamometer. 21 These setups can adequately reflect the real dynamical behavior of the brake systems but reduce the complexity.…”