B.Sc. in Mechanical Engineering – Noise and Vibration Protection

Developing students' knowledge about design of modern systems for active and passive noise protection. Formation of an ecological position about the impact of industrial noise and traffic on the quality of life.

Extensive knowledge necessary to review and understand the existing engineering solutions in the field of environmental noise protection. Ability to design a noise protection system using the methodology taught during the course, as well as in some of the previous courses. Ability to work in multidisciplinary teams.

A broad knowledge necessary for understanding of existing engineering solutions in the field of environmental protection. Develops the ability to identify and examine real noise and vibration issues, recognize noise and vibration sources and phenomena and evaluate them through measurements, and in particular to identify and investigate noise and vibration problems that arise in the work of mechanical engineers, then to suggest measures to solve noise and vibration problems, recognize and select appropriate standards, recommendations, or regulations that apply to industrial environments, and finally the ability to design a noise protection system using the methodology taught in the course itself and in some of the previous courses. The student also develop the ability to work in multidisciplinary teams.

Physical and physiological concepts of noise, noise measurement, Indoor noise, communal noise, models for noise forecasting, noise assessment and noise control.

Physical and physiological concepts of noise, noise measurements, indoor noise, utility noise, models for noise forecasting, noise assessment and noise control. Absorption materials for noise protection. Methods for determining the sound absorption coefficient. Acoustic treatment of rooms. Calculation of sound barriers. Porous absorbers, mechanical absorbers, acoustic resonators.

The lectures are performed by presenting multimedia presentations on a video projector.

Exercises are in a form of assignments that illustrate the theoretical concepts from lectures. Supported by the teacher, the students also make a team project.

Students in the laboratory or in the field make measurements as taught during the lectures. In collaboration with the teacher and the teaching assistant, students work on a team project thematically related to noise protection.

Theoretical lectures. Practical examples. Laboratory classes. Project assignment.

Students in the laboratory or in the field perform measurements of sound pressure, sound intensity, reverberation time, insulating power of all types of barriers. Calculation of sound power level of a source based on measurement of sound pressure level and sound intensity level. Broadband noise measurement and analysis, time and frequency domain noise analysis. Measurement of vibrations of the surfaces of rigid bodies representing the source of sound.

In collaboration with the teacher and teaching assistant, the students work on a team project, thematically related to noise protection.

• M. Praščević, “Environmental Noise”, Faculty of Occupational Safety of University of Niš, Niš, 2005
• R. Uzunović, “Noise and Vibration Protection”, Lola Institute, Belgrade, 1997
• Power Point presentations for the lectures, www.mfkv.kg.ac.rs

• Praščević M., Cvetković D, “Environmental noise”, Faculty of Occupational Safety, University of Niš, Niš, 2005, ISBN 86-80261-53-X
• Uzunović R., “Noise and Vibration Protection”, Lola Institute, Belgrade, 1997.
• Todorovic D., Salom I., “Acoustics - A Collection of Solved Problems”, Akademska misao, Belgrade, 2006, ISBN 86-7466-265-X
• Malcolm J. Crocker, Handbook of Noise and Vibration Control, John Wiley & Sons, Inc., 2007