Shape optimization of a loudspeaker diaphragm with respect to soun directivity properties

• Autorzy: Christensen S. , Olhoff N.
• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

acoustics; boundary element method; finite element method; loudspeaker sound directivity; optimum design

PL

akustyka; metoda elementów brzegowych; metoda elementów skończonych

• Wydawca: Systems Research Institute, Polish Academy of Sciences
• Czasopismo: Control and Cybernetics
• Rocznik: 1998
• Tom: Vol. 27, no 2
• Strony: 177--198
• Opis fizyczny: Bibliogr. 14 poz.,Rys., wykr.,

Twórcy

autor

Christensen S.

autor

Olhoff N.