Modelling in acoustics

Data is displayed for the academic year: 2024./2025.

Lecturers

Prof.
Ivan Đurek
PhD
Prof.
Antonio Petošić
PhD

Course Description

Consideration acoustic elements, systems and instruments physical modells and their implementation in digital domain. Representation of acoustic elements and systems by using ordinary differential equations, partial differential equations and finite difference methods. Represent acoustic elements and systems by using state-space diagram. Representation of vibration modes and propagation through different medium structures by using digital filter and digital waveguide model. Equivalent electrical circuits of acoustic elements and effects in discrete domain. Modelling sound propagation in open space in complex geometry by including all propagation effects.

Prerequisites

Basic numerical calculations. Basic difference equation for harmonic oscillator

Study Programmes

University graduate
[FER3-HR] Audio Technologies and Electroacoustics - profile
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[FER3-HR] Network Science - profile
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[FER3-HR] Software Engineering and Information Systems - profile
Elective Courses (1. semester) (3. semester)

Learning Outcomes

  1. Choose appropriate numerical method for modelling acoustic phenomena
  2. Design of acoustic instrument in digital domain.
  3. Calculate the noise level in complex environment
  4. Choose acoustic element for specific purrpose

Forms of Teaching

Lectures

13 lectures

Seminars and workshops

1 seminar

Laboratory

4 laboratory exercises

Week by Week Schedule

  1. Explicit and implicit numerical methods
  2. Explicit and implicit numerical methods
  3. Hybrid numerical methods
  4. Hybrid numerical methods
  5. Application of BEM, FEM, volume element method and stastical method in acoustics
  6. Application of BEM, FEM, volume element method and stastical method in acoustics
  7. Restrictions and applicability of numerical methods in acoustics, Midterm exam
  8. Midterm exam
  9. Nonlinear oscilator; Duffing equation
  10. Finite amplitude effects, N-waves, square waves, Shock waves
  11. Acoustic streaming, Acoustic cavitation
  12. Phononic crystals, Resonant crystals, Nonlinear periodic structures
  13. Seminar
  14. Project
  15. Final exam

Literature

(.), Vibration and Sound, Morse,
(.), Master handbook of Acoustics,
(.), Physical audio signal processing,
(.), Application of digital signal processing to audio and acoustics,

General

ID 222453
  Winter semester
5 ECTS
L2 English Level
L2 e-Learning
30 Lectures
0 Seminar
0 Exercises
16 Laboratory exercises
0 Project laboratory
0 Physical education excercises

Grading System

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