The shape of an acoustic horn is optimized with respect to its ability to provide impedance matching to the surrounding air. The resulting minimization problem is solved using a BFGS quasi-Newton algorithm. The wave propagation is modeled by a finite-element approximation of the Helmholtz equation,
β¦ LIBER β¦
Fixed-mesh curvature-parameterized shape optimization of an acoustic
β Scribed by Fotios Kasolis, Eddie Wadbro, Martin Berggren
- Book ID
- 118779727
- Publisher
- Springer-Verlag
- Year
- 2012
- Tongue
- English
- Weight
- 839 KB
- Volume
- 46
- Category
- Article
- ISSN
- 1615-1488
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## a b s t r a c t Using gradient-based optimization combined with numerical solutions of the Helmholtz equation, we design an acoustic device with high transmission efficiency and even directivity throughout a two-octave-wide frequency range. The device consists of a horn, whose flare is subject
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