演讲人简介：
王书文博士获加拿大多伦多大学工学硕士学位英国剑桥大学工程系博士学位, 长期从事振动与噪音控制、动力学及磨擦学等领域的前沿研究，参与加拿大国家自然科学基金、英国皇家学会及中国国家自然科学基金等国家级科研项目, 并获得英国伦敦皇家学会奖和英国剑桥大学英联邦信托基金奖，是剑桥研究学会和剑桥研究杂志(Journal of Cambridge Studies)的创始人之一，并在日本京都第四届国际磨擦学会议上担任分组会议主持人。

报告内容简介：
Any attempt to predict friction-induced vibration, such as brake squeal in vehicle systems, requires as input some information about the dynamic friction force at the sliding interface. If the concern is only with the threshold of instability based on linearised theory, the quantity required is a type of frictional frequency response function over the range of possible unstable frequencies. This quantity has not previously been measured, and this talk reports the development and testing of a novel tribometer to measure it. Based on the concept of a pin-on-disc machine, controlled fluctuations in sliding speed are applied using an PZT actuator and the resulting fluctuations in friction force are monitored in amplitude and phase. The sample of tested results will be presented. The potential of the device for providing necessary data on friction materials and also for discriminating between rival proposed theoretical models for dynamic friction will be discussed. In addition, the history and modern research on tribology will be briefly introduced.