Název: Modal analysis of tall slender structures using software GMAST
Autoři: Hračov, Stanislav ; Pospíšil, Stanislav ; Brůna, Tomáš
Typ dokumentu: Příspěvky z konference
Konference/Akce: Engineering Mechanics 2013 /19./, Svratka (CZ), 2013-05-13 / 2013-05-16
Rok: 2013
Jazyk: eng
Abstrakt: The paper is concerned with a verification of modal properties of tall slender structures computed by recently developed software GMAST. Software GMAST determines eigen-frequencies, eigen-modes and corresponding modal quantities of stacks, towers, guyed masts and similar civil engineering structures using slope-deflection method. A numerical model is based on an idealization of the structure as a continuous 2D beam with continuously distributed parameters on elastic supports. Shaft of structure is divided into sections which could be considered as prismatic i.e. with constant unit mass, bending stiffness and static axial force. The effect of guy ropes is introduced in a form of elastic supports with a frequency dependent stiffness. The applicability of the software in praxis is presented on an example of existing structures, for which the numerically and experimentally identified modal properties are compared.
Klíčová slova: guyed masts; modal analysis; tall slender structures; towers
Číslo projektu: FR-TI3/654 (CEP), GP13-41574P (CEP)
Poskytovatel projektu: GA MPO, GA ČR
Zdrojový dokument: Engineering Mechanics 2013, ISBN 978-80-87012-47-5, ISSN 1805-8256

Instituce: Ústav teoretické a aplikované mechaniky AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v příslušném ústavu Akademie věd ČR.
Původní záznam: http://hdl.handle.net/11104/0223706

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-156449


Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav teoretické a aplikované mechaniky
Konferenční materiály > Příspěvky z konference