中文摘要：

为研究摩擦副间摩擦特性，建立盘-销模型台架试验系统，采用三向力传感器在发生和不发生摩擦尖叫条件下测量摩擦接触作用力，并利用小波分解方法将摩擦接触力分解为准静态分量和动态分量；在此基础上提出摩擦因数传递函数的概念，进行传统摩擦因数和新摩擦因数传递函数的计算与分析。对比分析发现：在系统发生摩擦振动或者噪声的条件下，采用摩擦因数传递函数评价摩擦特性更加合理。研究结论有助于深化摩擦因数特性的认识以及摩擦振动和噪声发生机理的研究。

英文摘要：

For researches of the friction characteristics, a pin-on-disc system is established, and the contact forces between the pin-pad and the disc are measured by using a triaxial-force-sensor, and the measured normal force and the tangent friction force are decomposed to static and dynamic parts. On the base of that, a new concept of transfer function of friction coefficient is presented to calculate and to evaluate the friction characteristics under vibration of squeal conditions. The calculations show that, the transfer function of friction is much more reasonable under squeal conditions. The related works will be very helpful for the understand of both friction coefficient and frictional squeal.