Course detail

Noise and Vibrations

FSI-IHVAcad. year: 2010/2011

The following topics will be dealt with: Sources and sound propagation in closed and free areas. Monitoring and decreasing the noise in the living and working environment. Generation of vibrations, sensors and instruments for measuring vibration. Influence of the noise and vibrations to human health condition. Standards and limits. Practical acoustical measurements in common situations.

Language of instruction

Czech

Number of ECTS credits

4

Mode of study

Not applicable.

Guarantor

doc. RNDr. Miroslav Doložílek, CSc.

Department

Institute of Physical Engineering (ÚFI)

Learning outcomes of the course unit

Knowledge of basic physical quantities for description of noise and vibrations in the working and living environment. Basic overview of standards and regulations concerning the measurement and evaluation of the noise and vibrations. Basic information about techniques for decreasing the noise and vibrations.

Prerequisites

Oscillations. Simple harmonic motion. Superposition of harmonic oscillations. Waves. Types of waves: Longitudinal and transversal waves. Plane and spherical waves. Linear polarized waves. Superposition and interference of waves.

Co-requisites

Not applicable.

Planned learning activities and teaching methods

Teaching methods depend on the type of course unit as specified in the article 7 of BUT Rules for Studies and Examinations.

Assesment methods and criteria linked to learning outcomes

To receive a course-unit credit, a student has to attend all laboratory measurements and to hand over the reports. The exam has 2 parts: oral and written.

Course curriculum

Not applicable.

Work placements

Not applicable.

Aims

The aim of the course is to make students acquainted with problems caused by noise and vibrations so that they will be able to monitor the sound fields and vibrations, to measure relevant physical quantities and apply theoretical laws for their reduction. Acquiring basic knowledge about standards and regulation limits.

Specification of controlled education, way of implementation and compensation for absences

A teacher checks the attendance in labs stated in the timetable. The form and the date of the compensation of missed lessons are specified by the teacher.

Recommended optional programme components

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

Ver, I.L, Beranek, L.L.: Noise and Vibration Control Engineering: Principles and Applications, 2nd Edition. McGraw-Hill, Inc., 2005. ISBN: 978-0-471-44942-3 (EN)

Recommended reading

SMETANA, Ctirad, et al. Hluk a vibrace: Měření a hodnocení. 1. Vydání. Praha 1: Sdělovací technika, 1998. 188 s. ISBN 80-901936-2-5.
VAŇKOVÁ, Marie a kolektiv. Hluk, vibrace a ionizující záření v životním a pracovním prostředí část I. 1.vyd. Brno: PC-DIR, spol. s.r.o., 1995. 140 s. ISBN 80-214-0695-X. (CS)

Classification of course in study plans

  • Programme N2301-2 Master's

    branch M-TEP , 2 year of study, winter semester, compulsory

Type of course unit

 

Lecture

26 hod., optionally

Teacher / Lecturer

doc. RNDr. Marie Vaňková, CSc.

Syllabus

Noise as a pollutant factor of the living and working environment. Sources of the noise.
Basic concepts and quantities. Sound field and its energy. Analysis of acoustic signals. 1/1 oct and 1/3 oct frequency analysis. Sound propagation in free space and closed area.
Sound field of several sources. Sound power. Directional emission. Noise of air-conditioning machines. Sound mufflers.
Noise reduction of machines. Absorption construction.
Instrument and rooms for measurement of the sound. Actual directives and limits for the noise.
Generation of the vibrations. Basic concepts and quantities of mechanical vibrations. Measurement of vibrations. Sensors and instruments. Diagnostics and monitoring of machines in operation. Measurement of the impact of the vibration on a human.
Methods for reducing vibrations.
Currentl directives and vibrations limits.