Title: Numerické modelování akustického pole reproduktoru
Other Titles: Numerical modeling of acoustic field of loudspeaker
Authors: Petrášová, Iveta
Citation: FIŘT, Jaroslav ed. Elektrotechnika a informatika: XVIII. ročník konference doktorských prací Zámek Nečtiny, 26. – 27. října 2017. Vyd. 1. Plzeň: Západočeská univerzita v Plzni, 2017, s. [85-89].
Issue Date: 2017
Publisher: Západočeská univerzita v Plzni
Document type: konferenční příspěvek
URI: http://hdl.handle.net/11025/26458
ISBN: 978–80–261–0712–5
Keywords: Helmholtzova rovnice;vlnová rovnice;hladina akustického tlaku;numerická analýza
Keywords in different language: Helmholtz equation;wave equation;sound pressure level;numerical analysis
Abstract in different language: The paper deals with numerical modeling of acoustic field produced by a commercial loudspeaker. The goal is to obtain the directional characteristics of the device. The continuous mathematical model is derived from the physical laws and is considered for the ideal fluids with properties of a perfect continuum. The model of the loudspeaker in the axial symmetry (2D) is described by the Helmholtz differential equation for harmonic acoustic field and for the correct solution the appropriate boundary conditions and material properties are also defined. The data obtained during the measurement must be used to implement the model. In our case, there was the fundamental knowledge of the velocity of the diaphragm oscillation for the selected frequencies.
Rights: © Západočeská univerzita v Plzni
Appears in Collections:2017

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