| Numéro |
J. Phys. IV France
Volume 04, Numéro C5, Mai 1994
3ème Congrés français d'acoustique3rd French conference on acoustics |
|
|---|---|---|
| Page(s) | C5-585 - C5-588 | |
| DOI | https://doi.org/10.1051/jp4:19945124 | |
3ème Congrés français d'acoustique
3rd French conference on acoustics
J. Phys. IV France 04 (1994) C5-585-C5-588
DOI: 10.1051/jp4:19945124
1 LOA/ESPCI, Univ. Paris 7, URA 1503 du CNRS, 10 rue Vauquelin, 75005 Paris, France
2 Laboratoire d'Acoustique de l'Université du Maine, URA 1101 du CNRS, avenue Olivier Messiaen, BP. 535, 72017 Le Mans cedex, France
© EDP Sciences 1994
3rd French conference on acoustics
J. Phys. IV France 04 (1994) C5-585-C5-588
DOI: 10.1051/jp4:19945124
Influence des non-linéarités sur les caractéristiques des oscillations des instruments à vent
N. GRAND1, J. GILBERT2 and F. LALOË1 LOA/ESPCI, Univ. Paris 7, URA 1503 du CNRS, 10 rue Vauquelin, 75005 Paris, France
2 Laboratoire d'Acoustique de l'Université du Maine, URA 1101 du CNRS, avenue Olivier Messiaen, BP. 535, 72017 Le Mans cedex, France
Abstract
Two simple equations give the minimal modelisation of the acoustical behaviour of woodwind instruments. We discuss the predictions of these equations on the characteristics of the small oscillations, in particular their quasisinusoidal character or finite harmonic content, and domain of existence. We show that, instead of predicting a unique and simple standard behaviour, they introduce a whole series of possible cases (including normal and inverse bifurcations), depending on the characteristics of the non linearity and of the resonator.
© EDP Sciences 1994