Název: Relation of flutter derivatives and indicial functions in linear aero-elastic models
Autoři: Náprstek, Jiří ; Pospíšil, Stanislav
Typ dokumentu: Příspěvky z konference
Konference/Akce: Dynamics of Machines 2012, Prague (CZ), 2012-02-07 / 2012-02-08
Rok: 2012
Jazyk: eng
Abstrakt: Double degree of freedom (DDOF) linear systems are frequently used to model the aero-elastic response of slender prismatic systems until the first critical state is reached. Relevant mathematical models appearing in literature differ in principle by way of composition of aero-elastic forces. This criterion enables to sort them roughly in three groups: (i) neutral models - aero-elastic forces are introduced as suitable constants independent from excitation frequency and time; (ii) flutter derivatives - they respect the frequency dependence of aero-elastic forces; (iii) indicial functions - they are defined as kernels of convolution integrals formulating aero-elastic forces as functions of time. The paper tries to put all three groups together on one common basis to demonstrate their linkage and to eliminate gaps in mathematical formulations between them.
Klíčová slova: dynamic stability; flutter derivatives; indicial functions; non-symmetric linear systems
Číslo projektu: CEZ:AV0Z20710524 (CEP), IAA200710902 (CEP), GA103/09/0094 (CEP)
Poskytovatel projektu: GA AV ČR, GA ČR
Zdrojový dokument: Dynamics of Machines 2012, ISBN 978-80-87012-39-0

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/11104/0206756

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-85974


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