Vibro-acoustic diagnostics based on the experimental and numerical approach

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F19%3APU134337" target="_blank" >RIV/00216305:26210/19:PU134337 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/978-3-030-54136-1_42" target="_blank" >http://dx.doi.org/10.1007/978-3-030-54136-1_42</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/978-3-030-54136-1_42" target="_blank" >10.1007/978-3-030-54136-1_42</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Vibro-acoustic diagnostics based on the experimental and numerical approach

Popis výsledku v původním jazyce

During the last decade, many of developers in engineering industry are focusing on diagnostics and effective eliminating of the vibration and noise. The vibration and the acoustic emissions are directly related to each other. Based on this fact, it is important to take into consideration the original vibra-tion sources (engine, gearbox), but also the radiated noise to the environment. Current time brings unprecedented possibilities in the field of laboratory meas-urements and computational simulations in terms of hardware and software. In the issue of vibro-acoustic diagnostics, the combination of these two approaches is very often required. In the first phase, the modal properties of the structure are usually examined, and the material properties are refined according the mu-tual validation from both approaches. Subsequently, the amplitudes in structural (normal acceleration of the surface) and acoustic domain (sound power level - SWL, sound pressure level - SPL) are monitored during the operating condi-tions. In laboratory conditions, the structure is often excited by a mode exciter. In this case, the maximum amplitudes at the specific locations are primarily recorded on the structure. This article systematically describes the vibro-acoustic diagnostics of the rectangular plate. Two approaches are explained in the paper: experimental and computational – based on the finite element method (FEM). In the text below, the individual procedures of two methodologies are described. The obtained results from modal and harmonic response analyses are validated and compared between each other.

Název v anglickém jazyce

Vibro-acoustic diagnostics based on the experimental and numerical approach

Popis výsledku anglicky

During the last decade, many of developers in engineering industry are focusing on diagnostics and effective eliminating of the vibration and noise. The vibration and the acoustic emissions are directly related to each other. Based on this fact, it is important to take into consideration the original vibra-tion sources (engine, gearbox), but also the radiated noise to the environment. Current time brings unprecedented possibilities in the field of laboratory meas-urements and computational simulations in terms of hardware and software. In the issue of vibro-acoustic diagnostics, the combination of these two approaches is very often required. In the first phase, the modal properties of the structure are usually examined, and the material properties are refined according the mu-tual validation from both approaches. Subsequently, the amplitudes in structural (normal acceleration of the surface) and acoustic domain (sound power level - SWL, sound pressure level - SPL) are monitored during the operating condi-tions. In laboratory conditions, the structure is often excited by a mode exciter. In this case, the maximum amplitudes at the specific locations are primarily recorded on the structure. This article systematically describes the vibro-acoustic diagnostics of the rectangular plate. Two approaches are explained in the paper: experimental and computational – based on the finite element method (FEM). In the text below, the individual procedures of two methodologies are described. The obtained results from modal and harmonic response analyses are validated and compared between each other.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20301 - Mechanical engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Acoustics and Vibration of Mechanical Structures—AVMS 2019

ISBN

978-3-030-54135-4

ISSN

—

e-ISSN

—

Počet stran výsledku

9

Strana od-do

415-424

Název nakladatele

Neuveden

Místo vydání

Neuveden

Místo konání akce

Temešvár

Datum konání akce

30. 5. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—