The stick-slip bow interaction self-limits and adapts energy to the drain.

Evidence

In the violin, the bow and the string have a strong, non-linear interaction. When moving in one direction, the bow sticks to the string and moves it in the same direction until the tension of the string forces the string to retract and to stick to another position on the bow. The frequency of this repeated stick-and-slip effect depends on the resonances of the string. The movement of the bowing position of the string thus resembles the shape of the sawtooth wave (Equation (3.9) on page 46). From the point of view of modelling, this reminds us of the woodwind and brass instruments, where the excitation is continuous and non-linearly coupled and synchronized to the resonator. — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 670 (#corroborates, via linked claim)

Categorization

  • XREF: connects to: Resonance connects to the balance between power input and frictional loss; A bowed string alternates constant-velocity grip with rapid snapback motion; Bowed string motion is a stick-slip effect producing a sawtooth wave — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 670 (+1 more)

Broader Connections