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盘式制动器的制动尖叫是一个复杂的动力学问题。针对一个有尖叫倾向的盘式制动器，应用有限元技术和模态综合方法建立了一个闭环耦合模型，并简要分析了摩擦面的摩擦耦合与各部件联接界面的弹性耦合对耦合模型的影响。应用此模型，分析了尖叫倾向与耦合条件的关系，决定从制动器部件的模态参数入手抑制制动尖叫。通过分析系统不稳定模态的子结构模态构成，发现制动钳支架的某阶弹性模态是影响尖叫发生的关键，修改该阶模态即有可能抑制制动尖叫。
Brake screaming of disc brakes is a complex kinetic problem. A closed-loop coupled model is established for a screaming disc brake using finite element method and modal synthesis method. The effect of the friction coupling of the friction surface and the elastic coupling of the coupling interface on the coupled model is briefly analyzed. Using this model, the relationship between the screaming tendencies and the coupling conditions was analyzed, and the brake squeal was determined from the modal parameters of the brake components. By analyzing the sub-structure modal constitution of the system unstable mode, it is found that the elastic modal of a certain stage of the brake caliper bracket is the key to affect the screaming. Modification of the mode of this stage may suppress the brake squeal.