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Article Dans Une Revue Acta Acustica united with Acustica Année : 2017

Buckling Instability of a Violin Bow

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Nicolas Dauchez

Résumé

This paper addresses the phenomenon of lateral buckling that could occur on an improperly adjusted violin bow during playing. A finite-element model taking into account geometric nonlinearity is used to simulate the static response of a tightened bow to the applied bow force. It is shown that the addition of a small lateral perturbation load enables out-of-plane buckling of the stick once the bow force reaches a certain value. The link between this critical bow force and the critical tension of the bow is clarified. The way the perturbation load smoothes the transition between in-plane and out-of-plane deformation of the stick is illustrated. The influence of camber (curvature of the stick) on buckling is examined. A possible way to increase the lateral stability of a bow without altering its vertical stiffness is proposed.
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Dates et versions

hal-02537521 , version 1 (08-04-2020)

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Frédéric Ablitzer, Nicolas Dauchez, Jean-Pierre Dalmont. Buckling Instability of a Violin Bow. Acta Acustica united with Acustica, 2017, 103 (5), pp.803-811. ⟨10.3813/AAA.919109⟩. ⟨hal-02537521⟩
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