Detail publikace

Galloping štíhlých válcových konstrukčních prvků s vlivem námrazy

NEVAŘIL, A.

Originální název

Galloping štíhlých válcových konstrukčních prvků s vlivem námrazy

Anglický název

Galloping of sledner line-like cynindrical structures under icing conditions.

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

čeština

Originální abstrakt

In the presented article is outlined analysis of galloping of slender cylindrical structural elements. Transverse oscillations of the cross-section known as a galloping are referenced and a quasi-static approach of its theoretic solution is adopted. Basic assumptions for arise of these vibration produced instabilities are named according to the European Standard ENV 1991. It is shown that the instable oscillations develop in case of a fulfilled Glawert - Den Hartog criterion. The description of the numerical model assembled in the ANSYS/Flotran computer code is given. Some of the numerically obtained data, e.g. the flow trace, are presented. Aerodynamic instability of a galloping-like type can be analyzed using quasi-static approach.

Anglický abstrakt

In the presented srticle is outlined analysis of galloping of slender cylindrical structural elements. Transverse oscillations of the cross-section known as a galloping are referenced and a quasi-static approach of its theoretic solution is adopted. Basic assumptions for arise of these vibration produced instabilities are named according to the European Standard ENV 1991. It is shown that the instable oscillations develop in case of a fulfilled Glawert - Den Hartog criterion. The description of the numerical model assembled in the ANSYS/Flotran computer code is given. Some of the numerically obtained data, e.g. the flow trace, are presented. Aerodynamic instability of a galloping-like type can be analyzed using quasi-static approach.

Klíčová slova v angličtině

Galloping, analysis, structural elements, ANSYS

Autoři

NEVAŘIL, A.

Rok RIV

2006

Vydáno

19. 10. 2006

Místo

Bratislava, SR

ISBN

80-227-2479-3

Kniha

New trends in statics and dynamics of buildings

Strany od

215

Strany do

218

Strany počet

4

BibTex

@inproceedings{BUT24764,
  author="Aleš {Nevařil}",
  title="Galloping štíhlých válcových konstrukčních prvků s vlivem námrazy",
  booktitle="New trends in statics and dynamics of buildings",
  year="2006",
  pages="215--218",
  address="Bratislava, SR",
  isbn="80-227-2479-3"
}