EXPERIMENTAL MODAL ANALYSIS OF BOLTED ENVIRONMENTAL STORAGE TANK WITH NEW WIND GIRDER

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F25%3A10257795" target="_blank" >RIV/61989100:27230/25:10257795 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.mmscience.eu/journal/issues/june-2025/articles/experimental-modal-analysis-of-bolted-environmental-storage-tank-with-new-wind-girder" target="_blank" >https://www.mmscience.eu/journal/issues/june-2025/articles/experimental-modal-analysis-of-bolted-environmental-storage-tank-with-new-wind-girder</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.17973/MMSJ.2025_06_2025062" target="_blank" >10.17973/MMSJ.2025_06_2025062</a>

Jazyk výsledku

angličtina

Název v původním jazyce

EXPERIMENTAL MODAL ANALYSIS OF BOLTED ENVIRONMENTAL STORAGE TANK WITH NEW WIND GIRDER

Popis výsledku v původním jazyce

This paper deals with experimental modal analysis of bolted storage tank, commonly used in many applications such as sewage treatment. Experimental modal analysis is crucial for the evaluation of dynamic properties, which helps with the assessment of wind-induced loads. Vortex shedding at specific wind speeds can excite natural frequencies, potentially causing damaging vibrations. Although the tanks have a simple cylindrical shape, their construction from overlapping steel sheets, stiffening girders, and bolted joints complicates numerical modelling. This makes it difficult to accurately define stiffness, mass distribution, damping, and boundary conditions. To minimize these differences, a prototype of a small, bolted tank is designed and built including all above-mentioned parts. Experimental modal analysis is performed on the prototype using three configurations of upper girders. The first case is without girders, the second one uses standard L-shaped beams, and the third one uses a new designed wind girder. It was found that the lowest first natural frequency f = 42.3 Hz was for the case with new designed wind girder. The first natural frequency of the tank without girders was f = 50.1 Hz. The most suitable case was a tank equipped with L-shaped girder with the first natural frequency equal to f = 86.7 Hz.

Název v anglickém jazyce

EXPERIMENTAL MODAL ANALYSIS OF BOLTED ENVIRONMENTAL STORAGE TANK WITH NEW WIND GIRDER

Popis výsledku anglicky

This paper deals with experimental modal analysis of bolted storage tank, commonly used in many applications such as sewage treatment. Experimental modal analysis is crucial for the evaluation of dynamic properties, which helps with the assessment of wind-induced loads. Vortex shedding at specific wind speeds can excite natural frequencies, potentially causing damaging vibrations. Although the tanks have a simple cylindrical shape, their construction from overlapping steel sheets, stiffening girders, and bolted joints complicates numerical modelling. This makes it difficult to accurately define stiffness, mass distribution, damping, and boundary conditions. To minimize these differences, a prototype of a small, bolted tank is designed and built including all above-mentioned parts. Experimental modal analysis is performed on the prototype using three configurations of upper girders. The first case is without girders, the second one uses standard L-shaped beams, and the third one uses a new designed wind girder. It was found that the lowest first natural frequency f = 42.3 Hz was for the case with new designed wind girder. The first natural frequency of the tank without girders was f = 50.1 Hz. The most suitable case was a tank equipped with L-shaped girder with the first natural frequency equal to f = 86.7 Hz.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20302 - Applied mechanics

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

MM Science Journal

ISSN

1803-1269

e-ISSN

1805-0476

Svazek periodika

2025

Číslo periodika v rámci svazku

Červen

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

5

Strana od-do

8478-8482

Kód UT WoS článku

001499598800001

EID výsledku v databázi Scopus

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