Open AccessMetal rings and discs Matlab/Simulink 3D model for ultrasonic sandwich transducer design
Author(s) -
Igor Jovanović,
Dragan Mančić,
Vesna Paunović,
Milan Radmanovic,
Vojislav V. Mitić
Publication year - 2012
Publication title -
science of sintering/science of sintering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.309
H-Index - 25
eISSN - 1820-7413
pISSN - 0350-820X
DOI - 10.2298/sos1203287j
Subject(s) - matlab , ultrasonic sensor , transducer , acoustics , electrical impedance , materials science , coupling (piping) , resonance (particle physics) , acoustic impedance , signal (programming language) , computer science , engineering , physics , composite material , electrical engineering , particle physics , operating system , programming language
Metal-endings are integral part of different ultrasonic sandwich transducers. In this paper a new Matlab/Simulink 3D model of the finite metal rings and discs of various dimensions is realized. With this model, which describes both the thickness and the radial resonant modes, and the coupling between them, mechanical impedance of the sample can be easily computed. Resonance frequency-length curves for rings and disks with various materials and for different selected dimensions are given. Also, comparisons of the different approaches in determining of their resonant frequencies are shown. The proposed Matlab/Simulink model requires simpler implementation than other analytical models. That enabled modifying of 1D theory and simplified modelling and projecting of the ultrasonic sandwich transducers with short-endings. Finally, the computed and experimental results are compared. [Projekat Ministarstva nauke Republike Srbije, br. TR33035, br. III43014 i br. OI172057