Wyniki wyszukiwania - BazTech

Ograniczanie wyników

2 Control and Cybernetics

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Topology optimization - broadening the areas of application

Bendsoe M. P., Lund E., Olhoff N., Sigmund O.

Control and Cybernetics

2005

Vol. 34, no 1

7-35

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.

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

Christensen S., Olhoff N.

Control and Cybernetics

1998

Vol. 27, no 2

177-198

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.