Open AccessThe modal analysis of cylindrical steel tank with selfsupported roof filled with different level of liquid
Author(s) -
Daniel Burkacki,
Michał Wójcik,
Robert Jankowski
Publication year - 2013
Publication title -
budownictwo i architektura
Language(s) - English
Resource type - Journals
eISSN - 1899-0665
pISSN - 2544-3275
DOI - 10.35784/bud-arch.2132
Subject(s) - roof , modal , finite element method , storage tank , modal analysis , structural engineering , reliability (semiconductor) , natural frequency , natural (archaeology) , environmental science , engineering , materials science , geology , mechanical engineering , composite material , vibration , physics , paleontology , power (physics) , quantum mechanics
In technical branches, such as chemical or petroleum industries, cylindrical steel tanks are essential structures used for storage of liquid products. Therefore, their safety and reliability is essential, because any failure might have dangerous consequences, in extreme cases may even lead to an environmental disaster. The aim of the presented paper is to show the results of the modal analysis concerning the cylindrical steel tank with self-supported roof which has been constructed in northern Poland. The investigation was carried out with the use of the FEM commercial computer program Abaqus. The values of natural frequencies, as well as the natural modes, for different levels of liquid filling (empty tank, partly filled and tank fully filled) were determined in the study. The results of the study clearly indicate that the increase in the liquid level leads to the substantial decrease in the natural frequencies of the structure.