Apr 5, 2020   6:43 a.m. Miroslava
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prof. Ing. Stanislav Žiaran, CSc.
Identification number: 2470
University e-mail: stanislav.ziaran [at] stuba.sk
Výskumný pracovník s VŠ vzdelaním - Institute of manufacturing systems, environmental technology and quality management (FME)
External colleague - Faculty of Mechanical Engineering (STU)

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Basic information

Basic information about a final thesis

Type of thesis: Habilitation thesis
Thesis title:Noise and Vibration Noise and Vibration Control in Industry
Written by (author): prof. Ing. Stanislav Žiaran, CSc.
Department: Faculty of Mechanical Engineering
Opponent 1:prof. Ing. Jozef Zajac, DrSc.
Opponent 2:prof. Ing. František Trebuňa, CSc.
Opponent 3:doc. Ing. Vojtech Mišun, PhD.
Final thesis progress:Final thesis was successfully defended.

Additional information

Additional information about the final thesis follows. Click on the language link to display the information in the desired language.

Language of final thesis:Slovak

Slovak        English

Title of the thesis:Noise and Vibration Noise and Vibration Control in Industry
Summary:This monograph has been written to provide an introduction to the fundamental concepts of how noise and vibration can be controlled. The text presents noise and vibration control primarily at the introductory level. As such, the monograph should be of interest to students in engineering programs at the university level and to students in technology and technician programs at community colleges who need to acquire a basic understanding of noise and vibration control principles and applications; it should be of value to the practicing engineer who may have no formal training in noise and vibration control but whose responsibilities now involve assessment of noise and vibration and implementation of methods to control it. The monograph begins (Chapter 1, 2, 3) with an introduction to terminology and basic concepts of mechanical vibration and acoustic wave description and propagation: fundamentals of vibration -- equation of motion, vibration of bars -- wave equation, transverse motion -- wave equations, the two-dimensional wave equation -- vibration of membranes and plates, physical quantities, resonance, sources of vibration; the acoustic wave equation, plane and spherical waves, frequency spectrum, levels, sound fields, sources of noise. Chapter 4 and 5 deals with vibration and noise control by vibroacoustic diagnostics and machinery condition monitoring: transmission of the vibrodiagnostic signals, excitations and propagation of signals, frequency spectrum; cepstrum and envelope analysis, severity of vibration, analysis of the reasons and vibration characteristics of mechanical faults; condition monitoring of mechanical systems, quantitative assessment of the operation state, dynamic sensitivity machine, typical machine faults in the frequency spectrum. Chapter 6 deal with noise and vibration control by vibration isolation and damping: transmission of vibroacoustic waves through flexible structural materials, damping of vibration in structural materials, measurement vibroacoustic properties of resilient materials, high-damping viscoelastic materials with structural materials in the form of added layers or in sandwich arrangements. Chapter 7 covers a review of general noise control measures and guidelines for noise control by silencers: absorption of acoustic energy, noise control by resonance principle, nose isolation and coincidence, silencers. In Chapter 8 is included a discussion of acoustical flow resistance, a simple but fundamental property of porous materials which is basic to the understanding of a variety of acoustical phenomena. The aim of Chapter 9 is to introduce the needed acoustical measurements and instruments, which are used in the noise and vibration control.
Key words:Vibration, noise, diagnostics, vibroisolation, control, materials, measurement instruments

Current level of public release
Bylo zvoleno non-release of final thesis - iný závažný dôvod (v súlade s § 51 Zákona č. 618/2003 Z. z. o autorskom práve a právach súvisiacich s autorským právom v znení neskorších predpisov (autorský zákon)):
jedná sa o habilita.nú prácu.

Parts of thesis with postponed release:

Final thesis (final thesis appendices) unlimited
Reviews for final thesis unlimited