Integration of the Equations of Motion of Multibody Systems Using Absolute Nodal Coordinate Formulation

• Autorzy: Orzechowski G. , Frączek J.
• Języki publikacji: EN

Abstrakty

EN

Recently, a finite element formulation, called the absolute nodal coordinate formulation (ANCF), was proposed for the large rotation and deformation analysis of flexible bodies. In this formulation, absolute position and slope coordinates are used to define the finite element configuration. Infinitesimal or finite rotations are not used as nodal coordinates. The ANCF finite elements have many unique features that distinguish them from other existing finite element methods used in the dynamic analysis of the flexible multibody systems. In such systems, there appears the necessity of solving systems of differential-algebraic equations (DAEs) of index 3. Accurate solving of the DAEs is a non-trivial problem. However, in the literature about the ANCF one can hardly find any detailed information about the procedures that are used to solve the DAEs. Therefore, the current paper is devoted to the analysis of selected DAE solvers, which are applied to simulations of simple mechanisms.

Słowa kluczowe

EN

flexible bodies; multibody systems; ANCF; absolute nodal cooridnate forum; DAE solvers

PL

ciała elastyczne; układ wieloczłonowy; ANCF; równanie różniczkowe

• Wydawca: Oficyna Wydawnicza Politechniki Białostockiej
• Czasopismo: Acta Mechanica et Automatica
• Rocznik: 2012
• Tom: Vol. 6, no. 2
• Strony: 75--83
• Opis fizyczny: Bibliogr. 16 poz., Wykr.

Twórcy

autor

Orzechowski G.

autor

Frączek J.

• The Institute of Aeronautics and Applied Mechanics, The Faculty of Power and Aeronautical Engineering, Warsaw University of Technology, ul. Nowowiejska 24, 00-665 Warsaw, Poland,

Bibliografia

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