ABSTRACT
In the preceding chapter we studied the mathematical foundations of frictioninduced vibrations. Here we will review friction-induced vibrations as they occur in engineered applications and in nature. We include four large classes of systems: technical systems (brakes, belts, components, engines, tires); micro-and nano-devices; sound generation, including musical instruments; and systems in nature. The most common manifestation of friction-induced vibrations is noise, such as car brake squeal (Nosonovsky and Adams 2001, 2004; Persson 2001; Akay 2002; Nguyen 2003; Baumberger, Caroli, and Ronsin 2003; Kirillov 2008; Sheng 2008; Brunel et al. 2010). Usually undesirable and unsteady, friction-induced sound in certain situations can form a harmonic self-organized pattern. This phenomenon is used in musical instruments to produce musical sounds.
