In order to study the brake squeal of transmission disc brake

the asymmetric disk brake cooling channel concept is introduced

by SQP optimization algorithm the relevant constraints is established

the asymmetric cooling channel geometry data obtained by the optimization theory is intraduced into the brake squeal prediction model

the relevant characteristics variation rule is analyzed and the relevant model is established to verify the results. The results show that the characteristic frequency of the asymmetric cooling channels is separated effectively after introducing the model parameters

the brake squeal phenomenon is inhibited significantly

the SQP optimization algorithm for the calculation of the disc brake cooling channel asymmetric geometry problem has good stability and accuracy

the basis for the design is provided. Comparing the disc brake test results before and after optimizing

the test results are fit with the simulation results highly

the results show that the non- symmetrical disc brakes are useful to inhibit the brake squeal.