Computer simulation tool for predicting sound propagation in air-filled tubes with acoustic impedance discontinuities.

Autor: Albors GO; Department of Electrical and Computer Engineering, University of Puerto Rico, Mayagüez., Kyle AM, Wodicka GR, Juan EJ
Jazyk: angličtina
Zdroj: Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference [Annu Int Conf IEEE Eng Med Biol Soc] 2007; Vol. 2007, pp. 2203-6.
DOI: 10.1109/IEMBS.2007.4352761
Abstrakt: 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.
Databáze: MEDLINE