Title :
Computer Simulation Tool for Predicting Sound Propagation in Air-Filled Tubes with Acoustic Impedance Discontinuities
Author :
Albors, G.O. ; Kyle, Aaron M. ; Wodicka, G.R. ; Juan, E.J.
Author_Institution :
Univ. of Puerto Rico, Mayaguez
Abstract :
A computer tool, based on an acoustic transmission line model, was developed for modeling and predicting sound propagation and reflections in cascaded tube segments. This subroutine considered the number of interconnected tubes, their dimensions and wall properties, as well as medium properties to create a network of cascaded transmission line model segments, from which the impulse response of the network was estimated. Acoustic propagation was examined in air-filled cascaded tube networks and model predictions were compared to measured acoustic pulse responses. The model was able to accurately predict the location and morphology of reflections. The developed code proved to be a useful design tool for applications such as the guidance of catheters through compliant air-filled biological conduits.
Keywords :
acoustic impedance; acoustic pulses; acoustic wave reflection; bioacoustics; biology computing; acoustic impedance discontinuities; acoustic transmission line model; air filled tubes; biological conduits; cascaded transmission line; computer simulation tool; sound propagation prediction; sound reflections; Acoustic measurements; Acoustic propagation; Acoustic reflection; Algorithms; Biological system modeling; Computer simulation; Impedance; Predictive models; Transmission line discontinuities; Transmission lines; Acoustics; Air; Algorithms; Catheterization; Computer Simulation; Computers; Electric Conductivity; Electric Impedance; Equipment Design; Models, Biological; Models, Statistical; Reproducibility of Results; Software; Sound;
Conference_Titel :
Engineering in Medicine and Biology Society, 2007. EMBS 2007. 29th Annual International Conference of the IEEE
Conference_Location :
Lyon
Print_ISBN :
978-1-4244-0787-3
DOI :
10.1109/IEMBS.2007.4352761