Počet záznamů: 1
Response types and general stability conditions of linear aero-elastic system with two degrees-of-freedom
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SYSNO ASEP 0382832 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Response types and general stability conditions of linear aero-elastic system with two degrees-of-freedom Tvůrce(i) Náprstek, Jiří (UTAM-F) RID, ORCID, SAI
Pospíšil, Stanislav (UTAM-F) RID, SAI, ORCIDCelkový počet autorů 2 Zdroj.dok. Journal of Wind Engineering and Industrial Aerodynamics. - : Elsevier - ISSN 0167-6105
Roč. 111, č. 1 (2012), s. 1-13Poč.str. 13 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova aero-elastic system ; self-excited vibration ; instability ; aero-elastic derivatives Vědní obor RIV JN - Stavebnictví CEP GA103/09/0094 GA ČR - Grantová agentura ČR IAA200710902 GA AV ČR - Akademie věd Institucionální podpora UTAM-F - RVO:68378297 UT WOS 000312354600001 EID SCOPUS 84867648706 DOI https://doi.org/10.1016/j.jweia.2012.08.002 Anotace The unified linear variant of the general mathematical description of stability conditions for a girder with a bluff cross-section under the influence of wind flow is presented. A double degree-of-freedom model for the heave and pitch self-excited motion is used. The properties of the response located at the stability limits and the tendencies of the response in their vicinity are analyzed by means of the Routh–Hurwitz theorem. The respective stability conditions are depicted in the frequency plane delimited by the frequencies of two principal aero-elastic modes. Conditions for flutter onset and divergence are identified as special cases of the general theory. The results can be used as an explanation of several experimentally observed effects. The application of this method to real bridges is presented and compared with existing results from other approaches. Pracoviště Ústav teoretické a aplikované mechaniky Kontakt Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285 Rok sběru 2013
Počet záznamů: 1