4.5 Applications in science and engineering

Friction–vibration interactions occur widely in social life, nature, science and engineering. To name but a few: the musical sound of bowed string instruments, friction sound generated by animals, stick-slip and dynamic instability in earthquakes, ultrasonic motors driven by friction vibrations, stick-slip in contact mode AFM, friction-induced vibrations and noise in vehicles systems, such as squeal of belt and brake, etc.

4.5.1 Stick-slip and dynamic instability in earthquakes

Earthquakes have long been recognized as the result of stick-slip frictional instability [164–171]. The development of the constitutive law of rock friction illustrates that many earthquake phenomena are all attributed to ...

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