 
Fundamentals of Acoustics 
Abbreviation: OSNAKU  Load: 45(L)
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Lecturers in charge:  doc. dr. sc. Neven Alujević 
Lecturers:  
Course description: Course objectives: 1. To introduce the formal basis for the study of acoustic wave motion in fluids. 2. To equip students with knowledge necessary for modelling and analysis of propagation of acoustic waves in 1 and 3 dimensions. 3. To train students to analyse results of measurements of basic acoustical quantities. Enrolment requirements and required entry competences for the course: Student responsibilities: Either attendance of lectures or completing an individual assignment (project). Grading and evaluation of student work over the course of instruction and at a final exam: Depending on the number of enrolled students, the evaluation and assessment of their work will be implemented through either 2 colloquia, or through a written exam, or through an individual assignment with an oral exposition." Methods of monitoring quality that ensure acquisition of exit competences : Implementation of student polls including the evaluation of professors and lectures. Upon successful completion of the course, students will be able to (learning outcomes): Students will be able to: 1. Understand the basic physics behind the propagation of sound in free and enclosed space. 2. Compare one dimensional and three dimensional motion of acoustical waves. 3. Analyse onedimensional or threedimensional acoustic modes in a rectangular enclosure. 4. Define the phenomena of sound reflection, transmission and attenuation. 5. Sketch and explain the principle of operation of instruments for the measurements of acoustical quantities (pressure, power, intensity). 6. Analyse results of measurements of acoustical emissions obtained through different techniques. Lectures The role of acoustics and its applications in modern engineering. Propagation of small pressure disturbances in the air. Exponential representation of sound waves in one dimension. Onedimensional Helmholtz equation. Interference of two waves. Standing waves. Transmission and reflection of acoustical waves. First colloquium. Exponential representation of sound waves in three dimensions. Threedimensional Helmholtz equation. Mode shapes and natural frequencies of sound in a rectangular enclosure with rigid walls. Direct and reverberant sound fields. Multipole sound sources. Sound radiation absorption and attenuation. Second colloquium.

Compulsory literature: 
1.  Noise and Vibration Control Engineering: Principles and Applications, Second Edition Editors(s):István L. Vér ,Leo L. Beranek First published:12 December 2007 Print ISBN:9780471449423 Online ISBN:9780470172568 DOI:10.1002/9780470172568 Copyright 2006 John Wiley & Sons, Inc. 
Recommended literature: 
2.  L E Kinsler, A R Frey, A B Coppens and J V Sanders, Fundamentals of Acoustics, 4th Edition, pp. 560. ISBN 0471847895. WileyVCH, December 1999. 
 