Autor: Olhoff, N. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Shape optimization of a loudspeaker diaphragm with respect to soun directivity properties
Autorzy:: Christensen, S.
Olhoff, N.
Powiązania:: https://bibliotekanauki.pl/articles/206828.pdf
Data publikacji:: 1998
Wydawca:: Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:: akustyka
metoda elementów brzegowych
metoda elementów skończonych
acoustics
boundary element method
finite element method
loudspeaker sound directivity
optimum design
Opis:: This paper presents a novel method for optimizing the directivity of the sound emission from the diaphragm of an electro dynamic loudspeaker. The analysis of the diaphragm is performed by finite element analysis of the structural dynamic behaviour and using the boundary element method for the acoustic analysis. Through optimization of a dead mass distribution on the diaphragm, or of the shape of the mid-surface of the diaphragm, it has been possible to improve its directivity properties for sound emission. Several illustrative examples are presented at the end of the paper.
Źródło:: Control and Cybernetics; 1998, 27, 2; 177-198
0324-8569
Pojawia się w:: Control and Cybernetics
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Topology optimization - broadening the areas of application
Autorzy:: Bendsoe, M. P.
Lund, E.
Olhoff, N.
Sigmund, O.
Powiązania:: https://bibliotekanauki.pl/articles/970157.pdf
Data publikacji:: 2005
Wydawca:: Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:: optymalizacja topologiczna
laminat
płyn
topology optimization
laminates
pressure loads
multiphysics
fluids
Opis:: This paper deals with recent, developments of topology optimization techniques for application in some new types of design problems. The emphasis is on recent work of the Danish research groups at Aalborg University and at the Technical University of Denmark and focus is on the central role that the choice of objective functions and design parameterization plays for a successful extension of the material distribution approach to new design settings and to new types of physics models. The applications that will be outlined encompass design of laminated composite structures, design for pressure loads, design in fluids, design in acoustics, and design in photonics. A short outline of other design optimization activities is also given.
Źródło:: Control and Cybernetics; 2005, 34, 1; 7-35
0324-8569
Pojawia się w:: Control and Cybernetics
Dostawca treści:: Biblioteka Nauki

Artykuł

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