| Zugriffsnummer | 29628 |
| Dokumenttyp | Zeitschriftenartikel |
| Sprache | Englisch |
| Titel | On the adjustment of Helmholtz resonators |
| Autor(in); Institution |
Klaus, Jannis; TU Braunschweig, Institute of Dynamics and Vibrations, Braunschweig, GERMANY
Bork, Ingolf; 1.6, Schall, PTB-Braunschweig
Graf, M.; TU Braunschweig, Institute of Dynamics and Vibrations, Braunschweig, GERMANY
Ostermeyer, G.-P.; TU Braunschweig, Institute of Dynamics and Vibrations, Braunschweig, GERMANY
|
| Quelle/Jahr | Applied Acoustics: 77 (2014), 37 - 41 |
| ISSN | 0003-682X (PRINT) |
| Verlag | Amsterdam [u.a.]: Elsevier |
| Klassifikationscode | PACS: 43.20 ; PACS: 43.45 ; PACS: 43.50 |
| Freie Schlagworte | Helmholtz resonator ; damping ; tuning ; absorber |
| Zusammenfassung | A Helmholtz resonator is placed in a room with distinct acoustic modes, and is tuned to one of the corresponding resonant frequencies. The optimal resonator damping ratio is investigated, as a goal-dependent value. For example, minimizing reverberation time requires a dierent damping ratio from minimizing the sound pressure level. The optimum damping values for a Helmholtz resonator are analytically computed, and then veried by means of experimentation. Furthermore, a construction is introduced which allows for a ne adjustable setting for the eigenfrequency and the damping ratio of the resonator. |
