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Contribution to harmonic balance calculations of self-sustained periodic oscillations with focus on single-reed instruments

Abstract : The harmonic balance method ͑HBM͒ was originally developed for finding periodic solutions of electronical and mechanical systems under a periodic force, but has been adapted to self-sustained musical instruments. Unlike time-domain methods, this frequency-domain method does not capture transients and so is not adapted for sound synthesis. However, its independence of time makes it very useful for studying any periodic solution, whether stable or unstable, without care of particular initial conditions in time. A computer program for solving general problems involving nonlinearly coupled exciter and resonator, HARMBAL, has been developed based on the HBM. The method as well as convergence improvements and continuation facilities are thoroughly presented and discussed in the present paper. Applications of the method are demonstrated, especially on problems with severe difficulties of convergence: the Helmholtz motion ͑square signals͒ of single-reed instruments when no losses are taken into account, the reed being modeled as a simple spring.
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  • HAL Id : hal-00089052, version 1

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Snorre Farner, Christophe Vergez, Jean Kergomard, Aude Lizée. Contribution to harmonic balance calculations of self-sustained periodic oscillations with focus on single-reed instruments. Journal of the Acoustical Society of America, Acoustical Society of America, 2006, 119 (3), pp.1794-1804. ⟨hal-00089052⟩

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