Naslov
Numerical Simulation of Dynamical Multibody Systems in Fluid Flow

Autori
Terze, Zdravko ; Vučinić, Dean ; Vrdoljak, Milan

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Proceedings of the IV European Conference on Computational Mechanics - ECCM 2010 / - Pariz, 2010

Skup
IV European Conference on Computational Mechanics - ECCM 2010

Mjesto i datum
Pariz, Francuska, 16.05.2010. - 21.05.2010

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
multibody systems; incompressible fluid flow; fluid-structure interaction; loosely coupled integration procedure

Sažetak
In the paper, mathematical model and numerical procedure of multibody system forward dynamics in incompressible fluid flow is presented. The described procedure is shaped on the basis of loosely coupled partitioned algorithm, where fluid and MBS domains are treated separately and coupled during integration. Moreover, beside dynamical models for fluid and MBS partitions, dynamics of deforming finite volume mesh (needed for fluid dynamics numerical integration) is modeled via pseudo–solid approach. The MBS generalized forces pertinent to the aerodynamic loads are reduced during calculation to mass centre of the corresponding rigid body, after being calculated at the fluid mesh on the current deformed configuration of the fluid–structure interaction boundary. In the context of the MBS integration, the additional coordinates partitioning algorithm is performed within the stabilized time-integration routine, in order to avoid the MBS kinematical constraint violations due to the numerical errors (differential-algebraic system of index 1). The described loosely coupled integration procedure is applied to the numerical simulation of the flow induced dynamics of the wing-aileron multibody system.

Izvorni jezik
Engleski

Znanstvena područja
Zrakoplovstvo, raketna i svemirska tehnika

POVEZANOST RADA