Protection Against Noise and Vibration Course code: 180617 | 6 ECTS credits

Basic information

Level of Studies: Undergraduate applied studies

Year of Study: 2

Semester: 4

Requirements: Knowledge of basic concepts of electrical engineering and mathematics

Goal: To provide students students with the basic notions of noise and vibration problems, as well as to provide the knowledge needed for noise measurements and design of noise and vibration insulation systems.

Outcome: At the end of the course, the students will be familiar with the basic principles of measurement techniques and trained to independently solve elementary problems in the field of noise and vibration.

Contents of the course

Theoretical instruction:

Introduction to physical acoustics, generation, reception and propagation of sound
Psychophysical acoustics, the influence of noise on man;
Basics of frequency analysis of sound, measurement in acoustics;
Electro-mechanical-acoustic analogies;
Noise: definition and basic concepts;
Types of noise and basic concepts, barriersinsulation, insulation between rooms; Law of mass;
Air born noise: analysis and protection systems;
Structural noise, types, origin and ways of implementation.
Colloquium 1.
Introduction to vibration theory, analysis of the mass-spring system; Basics of vibration measurement;
Wind turbines as a source of noise: analysis and solutions;
Basic principles of sound insulation; Homogeneous and multilayer barriers; Windows and doors in noise protection systems; Floating floors;
Standards and legal regulations;
Active noise protection systems.
Colloquium 2.

Practical instruction (Problem solving sessions/Lab work/Practical training):

Measurement of air noise between two rooms
Measurement of urban noise
Measurements of structural noise
Solving practical problems
Designing noise insulation systems
Training for use of software packages Sound Plan and Comsol

Textbooks and References

D. Cvetković, M. Praščević, Buka i vibracije, Fakultet zaštite na radu, Niš, 2005.
M. Praščević, D. Cvetković, Buka u životnoj sredini, Fakultet zaštite na radu, Niš, 2005.

Number of active classes (weekly)

Lectures: 3

Practical classes: 2

Other types of classes: 0

Grading (maximum number of points: 100)

Pre-exam obligations

Points

activities during lectures

activities on practial excersises

seminary work

colloquium

Final exam